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Re: C-L-C update

 


<I've seen mention on this list of Rauch trying to blow himself up doing something with resonant chokes, but I <wasn't privy to the actual event. What was the story there?

<73

<Randy

<KZ4RV


##? simple really.? His choke resonated at aprx? 117hz- 119hz..with just bleeder load.? Once the real load was

applied, the choke XL? drops a tiny bit... and? resonance? freq? increases a bit.? ?Once it hit? 120 hz... with a load on it,? all hell broke loose.??


##? He was? using the? classic? ? resonant choke - filter cap? config.... like henry radio and collins used...except they resonated on the high side of? 120 hz....? which increases in freq? even more..with? max load.?


##? In the above? resonant choke - cap? config, the? resonant choke is getting hammered? by? 60% ripple, coming out of the? rectifiers.? ? And the? ripple freq? coming out of the? rectifiers is? 120 hz...or? 2F.?


##? Think? of how parallel? resonant traps? work on a triband? yagi.? ? You end up? with? extremely high peak? V on the capacitor section of the trap....and extremely high current? flowing through the coil.? ?When the sign wave flips? polarity,? you get a huge? back emf from the coil..which charges up the cap.? ?The cap then discharges through the? coil..producing? high currents through the coil.? ?It just goes back and forth forever? ( with power applied..and a big load).?


##? The other issue with the classic? resonant choke - Cap? ?setup is the B+? is only .9 X xfmr sec.?

Henry radio used a 6000 vac? sec on it's? 8K ultra....fed into a FWB.... then into the resonant choke - cap? filter..and a big 300 watt? bleeder.? ? The 8 K ends up being just? 6000 X .9 =? 5400 vdc.... no load.? ?Which drops down to? 4800 vdc? with a 1.25A? load.? 6 kw dc input..and? 3.5 kw? rf output.? ?So it drops? 600 vdc... which is nothing to? write home about.?


##? A? 3600 vac sec? with a FWB..or a 1800 vac sec? and a? FWD? ?would have done the job... and a C input filter.?


##? Put the? $$$? into the xfmr.... not a? choke.??


Gotta run, a ton of stuff going wrong this AM.?


Jim? VE7RF
Re: C-L-C update

 

RAUCHEN VERBOTEN!!!

Unless he sets himself on fire....


On Mon, Jun 10, 2019 at 7:52 PM Randy randy@... [ham_amplifiers] <ham_amplifiers@...> wrote:


I've seen mention on this list of Rauch trying to blow himself up doing something with resonant chokes, but I wasn't privy to the actual event. What was the story there?

73

Randy

KZ4RV

On 6/8/2019 10:47 AM, jim.thom@... [ham_amplifiers] wrote:
??

Re: [ham_amplifiers] Re: C-L-C update


  • ##?? yes..... but resonating at?? 150 hz makes things even worse, much worse.?? ??Attenuation of the ripple at?? 120 hz is?? ZERO.... meanwhile?? ALL the?? harmonics?? sail right on through the resonating cap.?? IMO,?? resonating the?? choke at....?? typ 123-125 hz.... is a cheesy way to obtain some 120 hz?? ripple redux.?? ?? It's a throw back to?? 1949?? era.?? ?? You will get?? aprx?? 22 db of?? 120 hz?? redux?? though...(measured).?? ??That will increase to aprx?? 38 db, if resonant?? (Under max load) freq is?? exactly 120 hz. The issue with resonating at exactly 120 hz... under load is.... the?? 120 hz circulating current through the?? choke +?? resonating cap is through the roof!




  • ??



  • Re: [ham_amplifiers] Re: C-L-C update

    Expand Messages
    • May 24
      ???
Re: C-L-C update

 

¿ªÔÆÌåÓý

I've seen mention on this list of Rauch trying to blow himself up doing something with resonant chokes, but I wasn't privy to the actual event. What was the story there?

73

Randy

KZ4RV

On 6/8/2019 10:47 AM, jim.thom@... [ham_amplifiers] wrote:

??

Re: [ham_amplifiers] Re: C-L-C update


  • ##?? yes..... but resonating at?? 150 hz makes things even worse, much worse.?? ??Attenuation of the ripple at?? 120 hz is?? ZERO.... meanwhile?? ALL the?? harmonics?? sail right on through the resonating cap.?? IMO,?? resonating the?? choke at....?? typ 123-125 hz.... is a cheesy way to obtain some 120 hz?? ripple redux.?? ?? It's a throw back to?? 1949?? era.?? ?? You will get?? aprx?? 22 db of?? 120 hz?? redux?? though...(measured).?? ??That will increase to aprx?? 38 db, if resonant?? (Under max load) freq is?? exactly 120 hz. The issue with resonating at exactly 120 hz... under load is.... the?? 120 hz circulating current through the?? choke +?? resonating cap is through the roof!




  • ??



  • Re: [ham_amplifiers] Re: C-L-C update

    Expand Messages
    • May 24
      ???
Re: C-L-C update

 

Re: [ham_amplifiers] Re: C-L-C update

Expand Messages
  • <Carl
    May 24
    ?
    <Did you try tuning the choke about 30 Hz higher?
    ?
    <Carl
  • ##? yes..... but resonating at? 150 hz makes things even worse, much worse.? ?Attenuation of the ripple at? 120 hz is? ZERO.... meanwhile? ALL the? harmonics? sail right on through the resonating cap.? IMO,? resonating the? choke at....? typ 123-125 hz.... is a cheesy way to obtain some 120 hz? ripple redux.? ? It's a throw back to? 1949? era.? ? You will get? aprx? 22 db of? 120 hz? redux? though...(measured).? ?That will increase to aprx? 38 db, if resonant? (Under max load) freq is? exactly 120 hz. The issue with resonating at exactly 120 hz... under load is.... the? 120 hz circulating current through the? choke +? resonating cap is through the roof!?
  • ?That will cook the resonating caps, and the Peak V across the resonating cap also goes high.?? The? circulating current through the choke can be as high, or higher, than the actual DC current passing through the? choke.? ? So now u end up with 2 x? currents? flowing through the choke..and they are additive.? ?So the..'fix'? is to resonate the choke a little higher..like? 122-125 hz.? Another issue? common with all these fixed chokes is.. their? inductance drops with increasing DC load..... which in turn? INCREASES the? resonant freq !? ?So the? general? consensus is to resonate the choke at? aprx? 122? hz, drawing just bleeder current.? Then on TX, with? max load, resonance increases to aprx? 124-126 hz.?
  • ? ?At which point the? 'notch filter'? is resonant on the high side of? 120 hz,? reducing it's effectiveness.... and also simultaneously? minimizing? circulating current.? ?IF just one of the 5 x series 20K? @? 100 watt? bleeders? open up on a henry 8 K ultra, the? B+? will skyrocket from? 5400 vdc to? a whopping? 8484 vdc... then all hell breaks loose.? The bleeders on the 8K ultra suck 300 watts in normal operation.? ?No,? I'm done with the ...'resonant choke'? nonsense.? ?It's also a fn? dead loss? on a C-L-C? setup.? I have tried every possible? configuration there is possible.? ? Top of the list is? ?C-L-C? network.? 2nd place is a plane jane? high C? filter. I used several? 25 kv @? 65A? rated? Kilovac? spst, nc, ceramic vac? relays to switch various configs.?
  • The? C- resonant choke - C network... and also the......? ?resonant choke - C? network? are a dog's? breakfast at best.? ? Best relegated to the scrap heap.? ?It was a fun series of experiments though..and I learned a lot during the way.? ?To put some perspective? into all of this.? A? L4B, with it's? 8 x 200 uf caps..and run at? 2500 under load of? 800ma has a 120 hz? ripple redux of? -31 db.? ?With? 2 x parallel? strings of? 8 x 330 uf, then the 120 hz redux is? -41 db.? ? A single string of? 8 x 2200 uf caps? =? -52db.? ?And any of those? 3 x configs? will? eat up the harmonics? real good.?
  • The? C-L-C? ?takes it to an extreme, and not required imo..... ( unless it's for a? B+? supply? for a? tube? audio amplifier..OR a commercial? FM? broadcast TX, both run on single phase).? ?The? 5750 ( no load)? supply, run at? 1.5A? cxr, under load, with? just a single? 25 uf cap,? drops under load to? 5555 vdc... and? 120 hz ripple =? -31? db.? ?Now increase? C to? 1875uf, and? B+? drops under load of? 1.5A? CCS? Cxr... to just 5657 vdc? (and takes? 3/4 sec to? drop, with a cxr, toggling between? 150 ma of idle current..and? 1.5A).? On ssb, it barely drops at all..a? few volts, that's it.? And 120 hz? ripple is down to just -67db.? ( and harmonics are gone, poof, vanished).?
  • Ok,? reconfig,? with the C-L-C? setup? consisting of? 625 uf - 4H -? 1250 uf.... and? ?1.5 A CCS? CXR,? V drops? are? 14 volts more than the? high C? (1875uf)? case.? ( 14 vdc drop across the 9.56 dc ohm choke, with 1.5A? flowing through the choke).? ?Only difference is? 120 hz? ripple is now down to just? -131 db.... which is beyond absurd..max? gross overkill.... and all harmonics? well below that, equally absurd.?
  • So? no,? you? don't need a 127 lb? Dahl? 4H? hypersil? choke ( 3A? CCS rated).? ?It's a good choke though, runs 3 steps below? luke warm, with 3A? CCS? flowing through it on the? dolley,? with? 29 vdc applied... for? 2.5 hrs ! Buddy across town had it sitting in his basement shop / storage, so I bought it cheap..and brought it home to experiment with.? ?You can also do all your experimenting on software...and be within 1-2%? of? real life tests, so the latest software is damned good for the most part, provided you input everything correctly.? That includes loop resistance on the 240 side..out to the street, V drops,? exact ESR of caps,? exact? dc resistance of? xfmr pri..and also sec, etc.? ?Part of my success is the? 253 lb dahl plate xfmr...? with it's? 6 ohm sec..and? .01 ohm primary.? ?The drake? xfmr has a 9 ohm sec.? My 10 kva? pole pig? has a 19 ohm sec? across it's? 4800 vac sec.
  • My 46 lb (? 2.75 KVA? CCS) small dahl xfmr, which has taps? at? 1.5 kv,? 2.0 kv,? 2.5 kv and? 2.75 kv, measures? 27 ohms across? it's? 2750 highest tap...and just? 14.72 ohms across it's? 1.5 kv lowest tap.? ?Buddy in CT? has been testing these? EPD plate xfmrs...and they all have a helluva lot of? B+? drop.? Their? 10 kva unit has a 49 ohm sec ( 4800 tap)... which is a helluva lot more than the 19 ohms on any? 4.8 kvac, 10 kva? pole pig.? ?I wish I had? 3 phase power available,? that would be another fun experiment.? ?Raw? DC on single phase? FWCT / FWB / FWD? has typ 62%? 120 hz? ripple.? ?On 3 phase, it's just 5%? ripple... so you don't need? much for a filter when using 3 phase...just a few? uf.?
  • Later...? Jim? ?VE7RF?


  • ?



  • Re: [ham_amplifiers] Re: C-L-C update

    Expand Messages
    • <Carl
      May 24
      ?
Re: Test

 

Don't hold back Carl.

Tell us how you REALLY feel ! !

Don W4DNR


Quoting "'Carl' km1h@... [ham_amplifiers]"
<ham_amplifiers@...>:

The recent glitch affected several on line plus classic email forums.
Quit blaming Yahoo, etc when anything disturbs your lives Shit happens and
the reason is often covered up.


..
----- Original Message -----
From: W2xj w2xj@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Saturday, June 01, 2019 7:47 AM
Subject: Re: [ham_amplifiers] Test



I belong to a number of groups that moved and the traffic has dropped to
nearly zero.


Sent from my iPad

On Jun 1, 2019, at 5:36 AM, fred@... [ham_amplifiers]
<ham_amplifiers@...> wrote:



Please explain why "moving is not an answer"?

ALL of other groups I belong to have moved with ZERO ISSUES on to groups.io


After all groups.io is developed by former Yahoo people to be what Yahoo
might have come


Yahoo is most certainly NOT "the answer"!



73 Fred
G4BWP

---In ham_amplifiers@..., <w7rkn.7@...> wrote :




Moving is not an answer, just the possibility of a whole new set of issues,
which there has been a few. (sic)

Joe ¨C W7RKN






---
This email has been checked for viruses by AVG.
Re: Test

 

The recent glitch affected several on line plus classic email forums.
Quit blaming Yahoo, etc when anything disturbs your lives Shit happens and the reason is often covered up.


.

----- Original Message -----
From: W2xj w2xj@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Saturday, June 01, 2019 7:47 AM
Subject: Re: [ham_amplifiers] Test



I belong to a number of groups that moved and the traffic has dropped to nearly zero.
On Jun 1, 2019, at 5:36 AM, fred@... [ham_amplifiers] <ham_amplifiers@...> wrote:



Please explain why "moving is not an answer"?

ALL of other groups I belong to have moved with ZERO ISSUES on to groups.io


After all groups.io is developed by former Yahoo people to be what Yahoo might have come


Yahoo is most certainly NOT "the answer"!



73 Fred
G4BWP

---In ham_amplifiers@..., <w7rkn.7@...> wrote :




Moving is not an answer, just the possibility of a whole new set of issues, which there has been a few. (sic)

Joe ¨C W7RKN






---
This email has been checked for viruses by AVG.
Re: Test

Doug Renwick
 

¿ªÔÆÌåÓý

Please explain which groups that moved caused the traffic to drop to zero.

I can give many groups that this did not happen.

So which groups are you referring to?

Doug

"The difference between stupidity and genius is that genius has its limits." Albert Einstein

From: ham_amplifiers@... [mailto:ham_amplifiers@...]
Sent: June-01-19 5:47 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Test

?

?

I belong to a number of groups that moved and the traffic has dropped to nearly zero.?


On Jun 1, 2019, at 5:36 AM, fred@... [ham_amplifiers] <ham_amplifiers@...> wrote:

?

Please explain why "moving is not an answer"?

ALL of other groups I belong to have moved with ZERO ISSUES on to

?

After all is developed by former Yahoo people to be what Yahoo might have come

?

Yahoo is most certainly NOT "the answer"!

?

73 Fred

G4BWP

---In ham_amplifiers@..., wrote :

?

Moving is not an answer, just the possibility of a whole new set of issues, which there has been a few. (sic)

?

Joe ¨C W7RKN

?

?


Virus-free.

Re: Test

W2xj
 

¿ªÔÆÌåÓý

I belong to a number of groups that moved and the traffic has dropped to nearly zero.?


On Jun 1, 2019, at 5:36 AM, fred@... [ham_amplifiers] <ham_amplifiers@...> wrote:

?

Please explain why "moving is not an answer"?

ALL of other groups I belong to have moved with ZERO ISSUES on to


After all is developed by former Yahoo people to be what Yahoo might have come

Yahoo is most certainly NOT "the answer"!

73 Fred
G4BWP

---In ham_amplifiers@..., wrote :

?

Moving is not an answer, just the possibility of a whole new set of issues, which there has been a few. (sic)

?

Joe ¨C W7RKN

?
Re: Test

 

Please explain why "moving is not an answer"?

ALL of other groups I belong to have moved with ZERO ISSUES on to groups.io

After all groups.io is developed by former Yahoo people to be what Yahoo might have come

Yahoo is most certainly NOT "the answer"!

73 Fred
G4BWP

---In ham_amplifiers@..., <w7rkn.7@...> wrote :

?

Moving is not an answer, just the possibility of a whole new set of issues, which there has been a few. (sic)

?

Joe ¨C W7RKN

?
Re: Test

 

¿ªÔÆÌåÓý

Posted some questions about this new issue in Groups, to the list mail help group (For mods and owners).? The general consensus is that one of the Verizon mail filters is broken.? It apparently is really tough on AOL and Yahoo emails.

?

Something major like this, will be put right, fairly quickly!

?

Moving is not an answer, just the possibility of a whole new set of issues, which there has been a few. (sic)

?

Joe ¨C W7RKN

?

From: Doug Renwick [mailto:ve5ra@...]
Sent: Thursday, May 30, 2019 6:42 PM
To: w7rkn.7@...
Subject: RE: [ham_amplifiers] Test

?

W7RKN,

There it is; Yahoo messing around. Time to ditch Yahoo.

Doug

?

?

The original message was received at Thu, 30 May 2019 21:32:25 -0400 from 199-189-89-18.sktn.hsdb.sasknet.sk.ca [199.189.89.18]

?

?? ----- The following addresses had permanent fatal errors -----

??? (reason: 554 Message not allowed - [PH01] Email not accepted for policy reasons.? Please visit [180])

?

?? ----- Transcript of session follows ----- ... while talking to fo-mx-groups.mail.am0.yahoodns.net.:

>>> DATA

<<< 554 Message not allowed - [PH01] Email not accepted for policy reasons.? Please visit [180]

554 5.0.0 Service unavailable

?

"The difference between stupidity and genius is that genius has its limits." Albert Einstein

From: Doug Renwick [mailto:ve5ra@...]
Sent: May-30-19 7:32 PM
To: 'ham_amplifiers@...'
Cc: 'w7rkn.7@...'
Subject: RE: [ham_amplifiers] Test

?

WTF another e-mail rejected by Yahoo.

?

?

It was a technical discussion as I replied to Jim T's e-mail.

Doug

From: ham_amplifiers@... [mailto:ham_amplifiers@...]
Sent: May-30-19 6:57 PM
To: ham_amplifiers@...
Subject: RE: [ham_amplifiers] Test

?

?

And where did you see that rejection note? I have never seen it and when a
Group generated message is issued, the owner/mods are always notified.

I think the freedom of expression exhibited here, would be unacceptable on
the 'other' group.

In any case, **I** am not interested in moving.

Joe - W7RKN

.


?

Virus-free.

?
Test

Doug Renwick
 

¿ªÔÆÌåÓý

Another e-mail rejected by Yahoo.

?

?

It was a technical discussion as I replied to Jim T's e-mail.

I have cut the previous discussion to see why it's provoking a rejection.

?

Doug

.



Virus-free.

Re: Test

 

And where did you see that rejection note? I have never seen it and when a
Group generated message is issued, the owner/mods are always notified.

I think the freedom of expression exhibited here, would be unacceptable on
the 'other' group.

In any case, **I** am not interested in moving.

Joe - W7RKN

-----Original Message-----
From: ham_amplifiers@... [mailto:ham_amplifiers@...]

Subject: [ham_amplifiers] Test

Time to move off yahoogroups.com

"Email not accepted for policy reasons."
Test

Doug Renwick
 

Time to move off yahoogroups.com

"Email not accepted for policy reasons."

Doug
Re: Ad Hominem behaviour in this forum thread

 

Damn Straight !!
W4DNR


Quoting "DAVE WHITE mausoptik@... [ham_amplifiers]"

I don't respect their self-appointed "right" to authority over me.
Personally I prefer freedom.
Dave G0OIL
GU-78B shorted grid

 

<I have a GU-78B that has developed a grid short. I have determined the grid
<short initiates about 2 minutes after power on and ends after about 5
<minutes.

<I have tried unsuccessfully to 'burn' the short by hooking up a 560?f
<capacitor fed with 300vdc.

<What other methods that can be tried to 'burn' this short?

<Doug
?
##? I assume you mean? the? control? grid....and not the screen? grid ?
?
##? If it is the? control grid......? Im assuming? the? control grid? is? shorting to the cathode ? ?? Or is the? control grid? shorted to the? screen grid ?
?
##? 560 uf cap charged up to 300 vdc? =?? 25.2? joules.?? Thats not? a lot of energy.
?
##? What happens after? 5 minutes..and the short? vanishes??? Is the? tube now usable ?????
?
##? watch out, the? control? grid? dissipation? is no doubt? very little, as whats? indicated on the spec sheet.? In? your quest to burn the short out,
you could destroy the control? grid in the process.
?
##? folks who have had? control? grid to cathode shorts? on a 3-500Z, have typ? a? 50% chance of burning the? short open... using a 12 vdc car battery,
which will? supply a LOT of? current.?? Depending on the? ESR of your? 560 uf cap, the? ESR? will? limit the? current?? somewhat.?? Typ? 560 uf? @? 450 vdc
lytics? have a ESR of? .203 ohms..... which is low enough to deliver a lot of current... albeit for a split second.
?

Jim?? VE7RF??
Re: Test / GU74B tubes

 

Hi Jim,

The good thing about the sweet little GU74B tetrode tube is its stable high
gain in grid-driven AB1 configuration with a simple untuned swamped grid
input circuit....no messy band switching required on the input side.

Just a few watts drive from an SDR exciter pushes the HF amplifier's output
well past 400 to 500 Watts at which PEP output the tube will virtually last
forever.

You don't need a "sky high" idle current to get acceptable IMD equal to or
better than most solid state amps; just use some cathode degeneration NFB
and all's well on that score.

If you specifically want a squeaky clean state of the art signal then just
put your SDR exciter in "Pure Signal" mode and a feedback sampling coupler
on the amp's output.....then all IM products are negated for an exemplary
clean signal spectrum.

These military surplus tubes were once very low cost a decade or two back,
but sadly market prices have risen like they have done for all Tx tubes :-(

It's the old argument of selecting different horses for different courses
Jim....each tube whether triode or tetrode and the various circuit
topologies have their merits in particular scenarios and use cases.

The available tube choices are drying up nowadays for tube amplifier
aficionados....everything has either become damn expensive, or is in the
realm of unobtainium..... :-(

73

Leigh
VK5KLT
________________________________________
From: ham_amplifiers@... [mailto:ham_amplifiers@...]

Sent: Sunday, 26 May 2019 1:27 PM
To: ham_amplifiers@...
Subject: RE: [ham_amplifiers] Test / GU74B tubes

Posted by: jim.thom@...

But on the subject of the venerable GU74B tube we contraire with
diametrically
opposite opinion.? This little tetrode is the best ham radio amplifier
tubes around; > on the proviso it¡¯s used properly and within its ratings¡­..
as evidenced by amp
manufacturers like Acom in their immensely popular and well received
family of 1
and two tube amplifiers, as well as others, and hordes of amplifier
homebrewers.

Leigh
##? Why even mess with a tetrode ?? ? My problem with the GU74B ......"
4CX-800"? ?is the sky?high?225 ma idle?current requirement PER TUBE !? ? And
that's just to get the IMD?to acceptable levels.? That's?insane.? ?450 ma
for a pair...and 675 ma for a 3 holer.?

##? Don't? mess?with the Acom? SS? amps.....? way too many problems...
and?no?qsk.??

##? Leigh,?with?your 400 W? limit,?anything will last a long??time.? ?With a
400 w? limit, a?SS amp would suffice.?

Jim? ?VE7RF
Re: Ad Hominem behaviour in this forum thread

 

It is always good to hear from you Dave.

IMO there is nothing wrong with a bit of bantering around especially with self absorbed fools who profess to know so much about amps and tubes but know so little but never stop trying to impress others.

I let them rant on a few times but when my patience wears out I swing the Louisville Slugger. Some get the message but others keep coming back for more and still cant finish a coherent debate on the subject.

How is Londonstan these days?

Carl

Carl

----- Original Message -----
From: DAVE WHITE mausoptik@... [ham_amplifiers]
To: ham_amplifiers@...
Cc: 'Carl'
Sent: Monday, May 27, 2019 2:20 AM
Subject: Re: [ham_amplifiers] Ad Hominem behaviour in this forum thread



I take your point that we shouldn't be hurling abuse at each other but do we really need someone like (as Carl described him) King George III watching and judging our comments? Who watches the watchers and judges the judges? I respect other people but I don't respect their self-appointed "right" to authority over me.
We're all grown up blokes who've been around the tracks. We're not like the precious little snowflakes at British universities who need their "safe space" and feel traumatised by anyone who holds opinions outside their world view.


Personally I prefer freedom.


If someone is rude to you, then tell them to "awa' and bile yer heid" as my colleagues in Aberdeen would have said.


Have a nice day, folks :)


Dave G0OIL






On Monday, 27 May 2019, 06:00:50 BST, 'Leigh Turner' invertech@... [ham_amplifiers] <ham_amplifiers@...> wrote:






Yes, and George's recently publicised set of prescriptive rules and posting
guidelines are very befitting and appropriate..

Ham radio interest group forums are intended for friendly exchange of
discussion and sharing information relating to the topic; not for off-topic
noise and crass and uncalled for ad hominem attacks.

Speak to the topic; not gratuitously attack the person for holding view and
opinion different from your own.....

Leigh
VK5KLT

________________________________________
From: ham_amplifiers@... [mailto:ham_amplifiers@...]

Sent: Monday, 27 May 2019 10:21 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Ad Hominem behaviour in this forum thread

Posted by: "Carl" <km1h@...>

And King George III recently posted that he will be monitoring AMPS closely
and blocking ALL off topic posts! Gee, like so much bandwidth is used on
that long obsolete forum.

Don't let the door hit you in the ass Leigh.....bye bye.

There are several more modern AMP forums these days that allow pictures,
audio, and even allow off topics.

Carl

----- Original Message -----
From: 'Leigh Turner' invertech@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Sunday, May 26, 2019 7:43 PM
Subject: RE: [ham_amplifiers] Ad Hominem behaviour in this forum thread

It's a damn pity this now low traffic / semi-defunct ham amplifiers forum
doesn't have a principled Moderator like George Fremin III K5TR who oversees

the Amps group where such uncalled for rude and crude ad hominem comments
are screened and deleted and rightly don't make it to the forum.

Leigh
VK5KLT

From: ham_amplifiers@... [mailto:ham_amplifiers@...]
Sent: Monday, 27 May 2019 2:33 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Test

Now don't you start Alek...you are one of the Aussies I actually like!

AND who doesn't speak like some overblown ego Brit in order to cover
incompetence...or is it incontinence?

Carl

----- Original Message -----
From: Alek Petkovic vk6apk@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Saturday, May 25, 2019 9:16 PM
Subject: Re: [ham_amplifiers] Test

Somebdy has forgotten to take their pills today.

Bad boy Carl. :-)

Alek.
VK6APK

On 26/05/2019 9:02 AM, 'Carl' km1h@... [ham_amplifiers] wrote:

YAWN

At least Rich and I were friends since about 1996 and I miss him

I can't say the same about you. Go back under your GU-74B rock and behave

Carl

----- Original Message -----
From: 'Leigh Turner' invertech@... [ham_amplifiers]
To: [email protected]
Sent: Saturday, May 25, 2019 8:41 PM
Subject: RE: [ham_amplifiers] Test

Indeed Joe, the forum has been quite slow since the sad demise of central
protagonist Rich Measures and the Rich / Carl sideshow jousts...

There's more interesting activity on the Amps group nowadays.

Leigh
VK5KLT

From: [email protected]
[mailto:ham_amplifiers@...]
Sent: Sunday, 26 May 2019 10:03 AM
To: [email protected]
Subject: RE: [ham_amplifiers] Test

No, not dead, been a bit slow, but not slow enough to worry.

Joe - W7RKN

-----Original Message-----
From: ham_amplifiers@... [mailto:ham_amplifiers@...]
Subject: [ham_amplifiers] Test

Canada; the ship of fools where corruption and politics are synonymous
Ham Amplifiers reflector dead?






---
This email has been checked for viruses by AVG.
Re: Ad Hominem behaviour in this forum thread

 

I just wish Dodge would build in more reliability.

Carl

----- Original Message -----
From: Edmund Watts ed_watts@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Monday, May 27, 2019 1:53 AM
Subject: Re: [ham_amplifiers] Ad Hominem behaviour in this forum thread



Yeah, but Challengers and Camaros are SO much better than cheesy Ford Mustangs!




Ed







-----Original Message-----
From: 'Leigh Turner' invertech@... [ham_amplifiers] <ham_amplifiers@...>
To: ham_amplifiers <ham_amplifiers@...>
Cc: 'Carl' <km1h@...>
Sent: Sun, May 26, 2019 10:00 pm
Subject: RE: [ham_amplifiers] Ad Hominem behaviour in this forum thread




Yes, and George's recently publicised set of prescriptive rules and posting
guidelines are very befitting and appropriate..

Ham radio interest group forums are intended for friendly exchange of
discussion and sharing information relating to the topic; not for off-topic
noise and crass and uncalled for ad hominem attacks.

Speak to the topic; not gratuitously attack the person for holding view and
opinion different from your own.....

Leigh
VK5KLT

________________________________________
From: ham_amplifiers@... [mailto:ham_amplifiers@...]

Sent: Monday, 27 May 2019 10:21 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Ad Hominem behaviour in this forum thread

Posted by: "Carl" <km1h@...>

And King George III recently posted that he will be monitoring AMPS closely
and blocking ALL off topic posts! Gee, like so much bandwidth is used on
that long obsolete forum.

Don't let the door hit you in the ass Leigh.....bye bye.

There are several more modern AMP forums these days that allow pictures,
audio, and even allow off topics.

Carl

----- Original Message -----
From: 'Leigh Turner' invertech@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Sunday, May 26, 2019 7:43 PM
Subject: RE: [ham_amplifiers] Ad Hominem behaviour in this forum thread

It's a damn pity this now low traffic / semi-defunct ham amplifiers forum
doesn't have a principled Moderator like George Fremin III K5TR who oversees

the Amps group where such uncalled for rude and crude ad hominem comments
are screened and deleted and rightly don't make it to the forum.

Leigh
VK5KLT

From: ham_amplifiers@... [mailto:ham_amplifiers@...]
Sent: Monday, 27 May 2019 2:33 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Test

Now don't you start Alek...you are one of the Aussies I actually like!

AND who doesn't speak like some overblown ego Brit in order to cover
incompetence...or is it incontinence?

Carl

----- Original Message -----
From: Alek Petkovic vk6apk@... [ham_amplifiers]
To: ham_amplifiers@...
Sent: Saturday, May 25, 2019 9:16 PM
Subject: Re: [ham_amplifiers] Test

Somebdy has forgotten to take their pills today.

Bad boy Carl. :-)

Alek.
VK6APK

On 26/05/2019 9:02 AM, 'Carl' km1h@... [ham_amplifiers] wrote:

YAWN

At least Rich and I were friends since about 1996 and I miss him

I can't say the same about you. Go back under your GU-74B rock and behave

Carl

----- Original Message -----
From: 'Leigh Turner' invertech@... [ham_amplifiers]
To: [email protected]
Sent: Saturday, May 25, 2019 8:41 PM
Subject: RE: [ham_amplifiers] Test

Indeed Joe, the forum has been quite slow since the sad demise of central
protagonist Rich Measures and the Rich / Carl sideshow jousts...

There's more interesting activity on the Amps group nowadays.

Leigh
VK5KLT

From: [email protected]
[mailto:ham_amplifiers@...]
Sent: Sunday, 26 May 2019 10:03 AM
To: [email protected]
Subject: RE: [ham_amplifiers] Test

No, not dead, been a bit slow, but not slow enough to worry.

Joe - W7RKN

-----Original Message-----
From: ham_amplifiers@... [mailto:ham_amplifiers@...]
Subject: [ham_amplifiers] Test

Canada; the ship of fools where corruption and politics are synonymous
Ham Amplifiers reflector dead?






---
This email has been checked for viruses by AVG.
Re: Test #5

 

I made two posts last night and they have the correct time stamps of 12:18 and 12:28.? However, I went to bed a bit after 4:00 AM and they hadn't shown up here. As I use Charter as my ISP and Mercury Networks? For my mail and home page, the mail goes from Charter to Mercury via SMTP .? The post time stamp should be when I receive the post and it normally is, but not for those posts.


73, Roger (K8RI)

On 5/28/2019 7:12 PM, 'Doug Renwick' ve5ra@... [ham_amplifiers] wrote:

Finally, after days, not hours, not one day, but days, my posts are finally appearing.

Doug

"The difference between stupidity and genius is that genius has its limits." Albert Einstein

------------------------------------------------------------------------

*From:*ham_amplifiers@... [mailto:ham_amplifiers@...]
*Sent:* May-25-19 7:17 PM
*To:* ham_amplifiers@...
*Subject:* [ham_amplifiers] Test #5

I have a GU-78B that has developed a grid short. I have determined the grid
short initiates about 2 minutes after power on and ends after about 5
minutes.
I have tried unsuccessfully to 'burn' the short by hooking up a 560?f
capacitor fed with 300vdc.
What other methods that can be tried to 'burn' this short?
Doug

**

.



<> Virus-free. www.avast..com <>

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
--
Roger (K8RI)
Re: Test #5

 

When Y! gets goofy like that, I check the group on the web.

^^^^^^^^^^^^^^^^
On Tuesday, May 28, 2019, 7:13:36 PM EDT, 'Doug Renwick' ve5ra@... [ham_amplifiers] wrote:




Finally, after days, not hours, not one day, but days, my posts are finally appearing.

Doug

"The difference between stupidity and genius is that genius has its limits." Albert Einstein
"Stupidity is the most abundant element in the universe"

From: ham_amplifiers@... [mailto:ham_amplifiers@...]
Sent: May-25-19 7:17 PM
To: ham_amplifiers@...
Subject: [ham_amplifiers] Test #5

?

?

I have a GU-78B that has developed a grid short. I have determined the grid
short initiates about 2 minutes after power on and ends after about 5
minutes.
I have tried unsuccessfully to 'burn' the short by hooking up a 560?f
capacitor fed with 300vdc.
What other methods that can be tried to 'burn' this short?
Doug

.



Virus-free.


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