Bill Fisher W4AN committed suicide on April 4 2004.
You can read here:


73 Jim SM2EKM
--------------------------------------------------------------

R L Measures wrote:

开云体育

Beyond installing your ECBS and parasitic suppression kits in an SB-220 and a Henry 2K-3 (both worked very well, thank you), the most serious project I have undertaken in the last 40 years is to take a perfectly good Alpha 76A and install a pair of 3CX800A7's in it and modify it for QSK.

Normally, my moto is "If it works, don't fix it." The 76A modification was a serious violation of my moto.

However, the thought of a light weight high voltage power supply for my Alpha does have an appeal, especially when I would like to take it on DXpeditions and international airlines are almost to the point of weighing baggage by the ounce.

de Paul, W8AEF

开云体育

On Sep 20, 2006, at 5:26 PM, Mike((W5UC)) & Kathy((K5MWH)) wrote:

The absence of secret moderators is a blessing. Now if we can just avoid month long discussions about the miniscule merits of harmonic suppressors.

The are parasitic oscillation suppressors but no harmonic suppressors. Did you avoid discussions about the latter?

Pentalabs wrote:


To thrive, like a TV soap opera, a discussion group needs a
protagonist and an antagonist. Tom and yours truly are such. Without
Tom, my guess is that there will be a lot less entertainment value.

R L MEASURES, AG6K. 805-386-3734
r@...

开云体育

On Sep 19, 2006, at 7:40 PM, craxd wrote:

Mike,

No, the melting temperature raises when you use silver in a solder.

Silver melts at 960.8?C. Tin melts at 231.9?C. Silver-tin solder is
eutectic (the lowest possible melting point) at 221?C, when the
silver content is c. 6%. Less than 6% silver or more than 6% silver
raises the melting point.

The more silver, the higher the melting temperature. Some has to be
used at red hot brazing temperatures. Thus in order for it to flow and
bond, it has to be at the correct temperature to do it.

Best,

Will

--- In ham_amplifiers@..., "Mike Sawyer" <w3slk@...>
wrote:

This has some redeeming value, but on another bulletin board, the

topic of using nichrome wire came up being used as a meter shunt.
someone chimed in that you can't solder to nichrome wire. Another
stated that you had to add enough solder to the joint to make it
mechanically stable. I was under the impression that you had to use
allot of heat, (like one of those large soldering irons you see in the
bargain boxes below the flea market tables), due to the heat wicking
properties of the wire. Am I correct in that assumption or only half
correct?

Mod-U-Lator,
Mike(y)
W3SLK

Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

chortle

On Sep 20, 2006, at 2:06 AM, w5uc wrote:

The mesage got through anyway. VK6APK posted a respomse with the
announcement at the bottom and the censor missed it.

73,
Mike, W5UC







Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 4:32 AM, GGLL wrote:

Jan Erik Holm escribió:

Thank?s to W3SLK for the info, it finaly made the
old amps-list.

I was sorry to see what happened over at the old list,
personally I hate censorship no matter what it is.

I sent a message there announcing the creation of this new list
and it was
censored, so I guess if "you know who" erased it to prevent AMPS
"instability".
Things became personal matters.

If the censor is not Tom, it's probably one of his drinkin' buddies.
cheers, Guillermo

Best regards
Guillermo - LU8EYW.

For years I have been wounder who the moderator was at
the amps-list, I know now, guess I should have figured
it out.

73 Jim SM2EKM

Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 8:45 AM, Mike((W5UC)) & Kathy((K5MWH)) wrote:

Pete, I guess you do what you think you must do, BUT, I have a lot
of trouble with the idea that someone operates an “open” forum and
feels the need to hide. That concept really bothers me. I post my
name and callsign every time I post to a reflector, and I am very
suspicious about the intentions of someone who feels the need to
hide in the shadows.

Amen, Mike. I found it curious that Tom knew the reasons why I got
"unsubscribed" / jackbooted from AMPS without the reasons having been
posted.

73,

Mike, W5UC





From: ham_amplifiers@...
[mailto:ham_amplifiers@...] On Behalf Of Pete Smith
Sent: Wednesday, September 20, 2006 9:26 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Censorship/Administrator



I am going to respect his anonymity.

73, Pete N4ZR

At 08:32 AM 9/20/2006, Jan Erik Holm wrote:

OK it isn?t W8JI, who is it?

73 SM2EKM
--------------------------------------
Pete Smith wrote:

This may be my first and last post on this list, but I wanted to

clear

a few misconceptions:

Tom Rausch is not the Admin of Amps. I'm not either ;^)

W4AN was not a fan of free speech - he replaced me as Admin of
Towertalk when I refused to censor posts there; this is not a

knock on

Bill, just a difference of philosophy.

I run a local community affairs mailing list with only two rules

- sign

your real name and maintain basic civility - keep it

substantive, not

personal. In 6 years, I've had to ban one person for a week. A
parallel list has no such rules, and has disintegrated into ugly

name-

calling.

From what I have read, such a regime on amps would have worked

pretty

well, though the Admin would have had to ban a few people.

73, Pete Smith N4ZR

Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 9:30 AM, bill_w4zv wrote:

--- In ham_amplifiers@..., "Pete Smith" <n4zr@...> wrote:

I run a local community affairs mailing list with only two rules - sign
your real name and maintain basic civility - keep it substantive, not
personal.

I agree Pete, although I also maintain strict topic focus on the
Topband reflector.

I got booted off of Topband for questioning questionable technical statements bu Tom RAUCH, W8JI. Bill, are you a friend of Tom?

AG6K wrote:

I was booted off of AMPS by W8JI, Charles Thomas Rauch, Jr.

This list is off to a great start with a lie. I know who the
moderator is also and confirm it's not W8JI (...or me).

73, Bill








Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 10:16 AM, Martin AA6E wrote:

Here's a simple request from one op who is interested in amps. Personal
grudge matches are bad news and will put off people who don't have any
ax to grind.

The W8JI-AG6K dispute that existed on AMPS - and previously on rec,amateur-radio.homebrew was not grudge based, it was based on electronic theory. W8JI's position was that AC circuit-analysis was inaccurate when analyzing VHF parasitic suppressors, that Ni-Cr alloys had reverse skin effect at HF, and that even though a DC current pulse could ring a HF-resonant circuit, it could not ring a VHF-resonant circuit. I did not agree and said so.

If we really want to support ham amplifier work, this
stuff is counterproductive.

Allowing newcomers to believe that W8JI's above statements are correct is productive?

Let's take our flames back to the NNTP world.

Telling people what to do is hardly good form.

I am giving the Yahoo group a try, because I think the anonymous
moderation and "appropriate use" policies of the other list were very
worrisome.

The straw that broke the camel's back was when Tom censored my post about why the TL-922 switches faster from Tx to Rx than it does when switching from Rx to Tx -- which could help to explain why so many 922 owners experience parasitic arcing when switching to Rx from Tx.

I hope I don't have to unsubscribe from both of these groups!

Zzzzzzzzzzz

73 Martin AA6E
...

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 11:29 AM, Dino Darling wrote:

My guess is that Pete won't get banned from here, if that was what he
was implying. If he chooses not to post here, it will be of his own
free will. at least, this is my understanding of policy on this new
and improved list.

I wonder who else has been banned from the other list in the past week...

Probably no one. Apparently Tom has been quietly censoring AMPS members who mention this group.

At 04:45 AM 9/20/2006, you wrote:

This may be my first and last post on this list, but I wanted to clear
a few misconceptions:

Dino - K6RIX
dino@...


--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.1.405 / Virus Database: 268.12.5/451 - Release Date: 9/19/2006





Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 11:33 AM, Pete Smith wrote:

And what's the alternative? I should "out" him? That's not my
prerogative, either.

I have been a member of amps since its inception, and while I
disagree with prior restraint of speech, I think its series of
moderators have acted with great self-control in the face of
extraordinary provocation. I believe the previous moderator
resigned at least in part because of the private vitriol directed
at him.

I'm done now - if you guys are going to run an amps reflector, talk
amps.

But you are opposed to talking about those who censor amplifier
discussions?

73, Pete N4ZR

At 11:45 AM 9/20/2006, Mike(W5UC) & Kathy(K5MWH) wrote:

Pete, I guess you do what you think you must do, BUT, I have a lot
of trouble with the idea that someone operates an “open” forum and
feels the need to hide. That concept really bothers me. I post
my name and callsign every time I post to a reflector, and I am
very suspicious about the intentions of someone who feels the need
to hide in the shadows.

73,
Mike, W5UC

<>

----------
From: ham_amplifiers@...
[mailto:ham_amplifiers@...] On Behalf Of Pete Smith
Sent: Wednesday, September 20, 2006 9:26 AM
To: ham_amplifiers@...
Subject: Re: [ham_amplifiers] Censorship/Administrator


I am going to respect his anonymity.

73, Pete N4ZR

At 08:32 AM 9/20/2006, Jan Erik Holm wrote:

OK it isn?t W8JI, who is it?

73 SM2EKM
--------------------------------------
Pete Smith wrote:

This may be my first and last post on this list, but I wanted to
clear
a few misconceptions:

Tom Rausch is not the Admin of Amps. I'm not either ;^)

W4AN was not a fan of free speech - he replaced me as Admin of
Towertalk when I refused to censor posts there; this is not a
knock on
Bill, just a difference of philosophy.

I run a local community affairs mailing list with only two rules
- sign
your real name and maintain basic civility - keep it
substantive, not
personal. In 6 years, I've had to ban one person for a week. A
parallel list has no such rules, and has disintegrated into ugly
name-
calling.

From what I have read, such a regime on amps would have worked
pretty

well, though the Admin would have had to ban a few people.

73, Pete Smith N4ZR

Yahoo! Groups Links

Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 1:30 PM, Dick wrote:

Very interesting Rich.
What would be the regulation of this switched mode power supply?
Cheers, Dick

I have no idea, but it has to be pretty good, since due to a switcher's light weight, if there was a lot of ESR, something would be likely to melt down.

--- In ham_amplifiers@..., R L Measures <r@...> wrote:

I purchased one unit from Costco. The price was $99. The unit was
surprisingly light in weight compared to my old transformer-

powered

400W u-wave oven. I found no RFI problem from 50 - 550 MHz. The
rating is 1300w, which is most probably the DC input power to the
magnetron. At 120V, c. 17A of current is drawn. If a SSB amateur
radio amplifier was built using the Matsushita switcher PS, two

units

are probably needed. By putting the 120V inputs to the two

switcher

supplies in series, operation from a standard, 240VCT, 20A outlet
would work. I have not yet disassembled the oven to measure the

HV.

Does anyone know what's the typical range of potentials used to

power

magnetrons of this size? tnx

R L MEASURES, AG6K. 805-386-3734
r@...

Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...

Funny, the YC-156 TRIODE has 3 times that gain in GG.
I drive my grid driven 4CX3000A by a 4CX350a in class A
which I integrated into the amp

73
Peter


--- In ham_amplifiers@..., FRANCIS CARCIA <carcia@...>
wrote:

I never tried driving the grid but in gg it is close to X15 when

motivated by a pair of UTC CG310s on the high taps. I've read your
article a number of times on the on you did Rick. Frank wa1gfz

R L Measures <r@...> wrote: In grid-driven service,

the 4cx3000A has a power gain of c. 60x.

On Sep 20, 2006, at 4:51 PM, FRANCIS CARCIA wrote:

Yup Mike,
They all went to Frank because I have a box of 4CX3000As. They

also

work well in GG mode and have a bit more gain than the 4-1000A.
wa1gfz

Mike Sawyer <w3slk@...> wrote:
Frank,
I thought I took all your 4-1000's ;>) Welcome to the new group.
Mod-U-Lator,
Mike(y)
W3SLK
----- Original Message -----
From: FRANCIS CARCIA
To: ham_amplifiers@...
Sent: Wednesday, September 20, 2006 5:32 PM
Subject: Re: [ham_amplifiers] New poll for ham_amplifiers

Maybe we could change the pole to what size breaker can you
trip.......I plea the fifth

ham_amplifiers@... wrote:

Enter your vote today! A new poll has been created for the
ham_amplifiers group:

what is the output power capability of your HF power amplifier.
(obviously we never exeed our legal limit)

o < 2 kW
o 3 kW
o 6 kW
o 12 kW
o > 15 kW

To vote, please visit the following web page:


Note: Please do not reply to this message. Poll votes are
not collected via email. To vote, you must go to the Yahoo! Groups
web site listed above.

Thanks!

R L MEASURES, AG6K. 805-386-3734
r@...

On Sep 20, 2006, at 2:36 PM, FRANCIS CARCIA wrote:

man you got that right John.....all that useless mail. The one on wiring back to the breaker panel that went on for ever sent me a runnin. my $50,000 alpha won't work

jcoupejr <JCoupejr@...> wrote:
I am very happy we have found a new unmoderated home. Recent posts on
the old group have been boaring to say the least.

Welcome to all and lets continue to have free and meaningful
discussions on this great topic!

Unmoderated is a euphemism for uncensored. // As I see it, when a member goes over the top, he will be ignored by the rest of the discussion group and. if given enough time. he eventually wither on the vine. This is essentially censoring by everyone. I call it democratic censoring.

John Coupe
WA3BXH

R L MEASURES, AG6K. 805-386-3734
r@...

开云体育

On Sep 20, 2006, at 4:01 PM, Paul Playford wrote:

It is information like this that maintains my interest in amateur radio.

Are you interested enough to build one?

My guess is that 6 of the Panasonic switchers would power an 8170 in SSB-mode, especially if an energy-storage C bank was connected to the output and the units were powered from a 50A electric range outlet.

de Paul, W8AEF

----- Original Message -----
From: "Roger Glover" <r.glover@...>
To: <ham_amplifiers@...>
Sent: Wednesday, September 20, 2006 2:39 PM
Subject: [-] Re: [ham_amplifiers] Re: Panasonic/Matsushita Switcher HV-PS
u-Wave Oven

Dave Smith VK3HZ did some ivvesigation of these, with interesting findings
at:

www.users.bigpond.net.au/dwsmith/hv_inverter.pdf

Roger



----- Original Message -----
From: "Dick" <pa3duv@...>
To: <ham_amplifiers@...>
Sent: Wednesday, September 20, 2006 9:33 PM
Subject: [ham_amplifiers] Re: Panasonic/Matsushita Switcher HV-PS u-Wave
Oven

Very interesting Rich.
What would be the regulation of this switched mode power supply?
Cheers, Dick

--- In ham_amplifiers@..., R L Measures <r@...> wrote:

I purchased one unit from Costco. The price was $99. The unit was
surprisingly light in weight compared to my old transformer-

powered

400W u-wave oven. I found no RFI problem from 50 - 550 MHz. The
rating is 1300w, which is most probably the DC input power to the
magnetron. At 120V, c. 17A of current is drawn. If a SSB amateur
radio amplifier was built using the Matsushita switcher PS, two

units

are probably needed. By putting the 120V inputs to the two

switcher

supplies in series, operation from a standard, 240VCT, 20A outlet
would work. I have not yet disassembled the oven to measure the

HV.

Does anyone know what's the typical range of potentials used to

power

magnetrons of this size? tnx

R L MEASURES, AG6K. 805-386-3734
r@...

Yahoo! Groups Links

R L MEASURES, AG6K. 805-386-3734
r@...