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Re: Electrolytic Caps.

 

开云体育

Derated for 105C = 600 X .91 = 546V

?

Voltage derating (0.91VR) enables 105°C operation

?

?

?

?

BUT only 85C rated, that could be rough when using a high ripple doubler HV PS.

----- Original Message -----

Sent: Friday, February 14, 2020 5:56 PM

Subject: [ham-amplifiers] Electrolytic Caps.

?

For those who might be building or considering a HV power supply, Newark currently has a promotional price on 600V 270uF caps that appears to be a bargain.



I have no pecuniary interest.

Regards,

Roy
K9ER

Re: Electrolytic Caps.

 

?
BUT only 85C rated, that could be rough when using a high ripple doubler HV PS.

----- Original Message -----
Sent: Friday, February 14, 2020 5:56 PM
Subject: [ham-amplifiers] Electrolytic Caps.

For those who might be building or considering a HV power supply, Newark currently has a promotional price on 600V 270uF caps that appears to be a bargain.



I have no pecuniary interest.

Regards,

Roy
K9ER

Re: Tokyo Hy Power HL-45B question.

 

开云体育

Assuming that the amp is functional, are you sure you that you don’t have it in standby or that it is being keyed properly by the radio.? You don’t need ALC when then amp is driven with almost any solid-state transceiver.

?

73,

?

Steve

?

From: [email protected] [mailto:[email protected]] On Behalf Of Terry ONeill
Sent: Wednesday, February 05, 2020 10:49 AM
To: [email protected]
Subject: [ham-amplifiers] Tokyo Hy Power HL-45B question.

?

I recently acquired a Tokyo Hypower HL-45B in excellent cosmetic condition.

?

I do not have a Yaesu FT817 and attempted to drive the amp with another qrp rig @ 5 watts with no alc cable between the amp & the rig.

?

Bottom line I'm only getting 5 watts into my dummy load.? It's as if the amp is not putting out any power.

?

My question: Is an ALC connection required to key this amp?

?

Thanks

?

Terry

W8EJO

?
Electrolytic Caps.

 

For those who might be building or considering a HV power supply, Newark currently has a promotional price on 600V 270uF caps that appears to be a bargain.



I have no pecuniary interest.

Regards,

Roy
K9ER
Tokyo Hy Power HL-45B question.

 

I recently acquired a Tokyo Hypower HL-45B in excellent cosmetic condition.
?
I do not have a Yaesu FT817 and attempted to drive the amp with another qrp rig @ 5 watts with no alc cable between the amp & the rig.
?
Bottom line I'm only getting 5 watts into my dummy load.? It's as if the amp is not putting out any power.
?
My question: Is an ALC connection required to key this amp?
?
Thanks
?
Terry
W8EJO
?

20200204_093856.jpg

Re: Fl2100z feedback

 

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Yeah!

It's the first 6dB that makes all the difference.

73, Alek. VK6APK

On 14/02/2020 1:26 am, David Perry wrote:

Linear fine and running directly off the orion 2 as was suggested.? Dx pouring in.? Seriously.? Even at500 watts

?Very happy.


--
David G4YVM

Fl2100z feedback

David Perry
 

Linear fine and running directly off the orion 2 as was suggested.? Dx pouring in.? Seriously.? Even at500 watts

?Very happy.


--
David G4YVM
Re: fl2100Z misery...

David Perry
 

Fault lies in the rf hot line.? When the operate relay is switched to operate the rf line goes open circuit
fl2100Z misery...

David Perry
 

Oh woe is me.

I have been using the linear with my Tentec Orion quite happily, manually switching the relay not via the rig nor leaving it permanently shorted as when I found it. ?I have been running a max of 500 watts into good SWR. ?My procedure has been to run the rig through the un-energised linear (mains ON, OPERATE not on) and tune for perfect SWR as measured by the rig, the SWR bridge AND the meter on the ATU. ?Then tune up the linear as per manual. ?Then operate on air.


All has been good till this morning when I find that running the rig through the linear is fine but as soon as I energise the relay the init SWR goes very high, the rig rolls back and nothing is going anywhere. ? I'm guessing its that relay gone wrong maybe?

Anyone met this before? ? Ive got the covers off and apart from some heat and life wear on various resistors (the ones between the anodes particularly ) there's. nothing obviously amiss.




David G4YVM
Re: fl2100z / Tentec Orion 2

 

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Yes. That is a great solution. I have a 5kVA unit with 10V taps from -40V to +20V compared to the incoming mains. I use it on my AL-1500 and HF-2500 amps.

I run them on 230V and they are very happy there.

73, Alek. VK6APK

On 5/02/2020 11:26 am, W2XJ wrote:

autotransformer is the solution.?


On Feb 4, 2020, at 9:41 PM, cturnertuning <clark@...> wrote:

?
My voltage here is 256. Same problem.

Sent from my T-Mobile 4G LTE device

------ Original message------
From: Alek Petkovic
Date: Tue, Feb 4, 2020 3:30 PM
Cc:
Subject:Re: [ham-amplifiers] fl2100z / Tentec Orion 2

The biggest single issue in this country (Australia) with the 2100 amps and a lot of others, for that matter, is the filament voltage. Due to our 240V to 250V mains, it is always high.

With the 2100 series amps, the filament voltage, at the tube sockets is typically 6.8 to 6.9 Volts.

Luckily, there is enough room under the chassis to install some series/parallel wirewound resistors, in the filament line, to bring the voltage back to the nominal 6.3V.

I have done this to at least 20 Yaesu amps over the years and in every single case, it has tamed them right down to become a good little amplifier with very few problems.

You can do all the other mods that you see floating around the net but I've never bothered. After the filament voltage has been corrected, I've never had an amp come back to me with problems.

73, Alek. VK6APK


On 5/02/2020 12:44 am, cturnertuning wrote:

I have a 2100B to use with the FT 101 station.? I take it to the cabin and use it on all bands. Typically run it at 500 out. Never had a single issue with it ever. Its possible it was worked on at some point and upgraded. I understand early 2100 and 2100B had real problems like you describe Jim.?

These amps where abused for sure as almost nobody hooked up the ALC and if you ran it with a 101 you then put 150 watts into it.? With the ALC hooked up and set, it backs the drive down to about 50 watts and has a clean output.? There is zero gain to place the amp on 240volt. The transformer does not have dual primary. It will just run the amp off one leg of the 240.

The Bias and Oscillation problems of early units is described here:

C

On 2/4/2020 4:06 AM, Jim VE7RF wrote:
I? had a brand? new? FL-2100B? back? in 1976.? ?Worked? on? all? bands...? for a while.??
Then? on? 10M,? it? flat? out? would? not? tune? properly on? 10M..into a flat? swr.?
The? xfmr? ran? very? hot.....even? when? on? standby? for an? hr.? (240? vac? ?60 hz)?
Cooling? was? very? minimal,? so added a? extra? fan? on? top,? sucking? hot? air out.
SWR? meter? was flaky.? SWR? would? increase as power? output? increased....which? is? nonsense? of? course.
I? believe? the? 2100Z? has? 160M.?
Pulse? tune? the? amp? (like? with? 60? wpm? dots.....and? use? a pep? meter)..should? get? aprx? 600 w? out.?

Local? buddy also? had? a new? 2100B.? ?I? tuned his,? and? promptly arced? the? bandswitch. His? was a parasitic? nightmare? from? day 1. Never? did? get? resolved.? ??
I? see? there? is a lot? of? mods? for? these? amps.? Beware,? it? has? taps for? 100/200? vac..for? JA? use.

Whatever? u? do,? don't? buy? either? version.? I? was glad to? get rid? of? mine.

Jim? ?VE7RF 
-- 
Please let me quote you for your parts needs!
I offer a discount on Protunes with parts order!
Clark Turner
480-695-2898

Re: fl2100z / Tentec Orion 2

W2XJ
 

开云体育

autotransformer is the solution.?


On Feb 4, 2020, at 9:41 PM, cturnertuning <clark@...> wrote:

?
My voltage here is 256. Same problem.

Sent from my T-Mobile 4G LTE device

------ Original message------
From: Alek Petkovic
Date: Tue, Feb 4, 2020 3:30 PM
Cc:
Subject:Re: [ham-amplifiers] fl2100z / Tentec Orion 2

The biggest single issue in this country (Australia) with the 2100 amps and a lot of others, for that matter, is the filament voltage. Due to our 240V to 250V mains, it is always high.

With the 2100 series amps, the filament voltage, at the tube sockets is typically 6.8 to 6.9 Volts.

Luckily, there is enough room under the chassis to install some series/parallel wirewound resistors, in the filament line, to bring the voltage back to the nominal 6.3V.

I have done this to at least 20 Yaesu amps over the years and in every single case, it has tamed them right down to become a good little amplifier with very few problems.

You can do all the other mods that you see floating around the net but I've never bothered. After the filament voltage has been corrected, I've never had an amp come back to me with problems.

73, Alek. VK6APK


On 5/02/2020 12:44 am, cturnertuning wrote:

I have a 2100B to use with the FT 101 station.? I take it to the cabin and use it on all bands. Typically run it at 500 out. Never had a single issue with it ever. Its possible it was worked on at some point and upgraded. I understand early 2100 and 2100B had real problems like you describe Jim.?

These amps where abused for sure as almost nobody hooked up the ALC and if you ran it with a 101 you then put 150 watts into it.? With the ALC hooked up and set, it backs the drive down to about 50 watts and has a clean output.? There is zero gain to place the amp on 240volt. The transformer does not have dual primary. It will just run the amp off one leg of the 240.

The Bias and Oscillation problems of early units is described here:

C

On 2/4/2020 4:06 AM, Jim VE7RF wrote:
I? had a brand? new? FL-2100B? back? in 1976.? ?Worked? on? all? bands...? for a while.??
Then? on? 10M,? it? flat? out? would? not? tune? properly on? 10M..into a flat? swr.?
The? xfmr? ran? very? hot.....even? when? on? standby? for an? hr.? (240? vac? ?60 hz)?
Cooling? was? very? minimal,? so added a? extra? fan? on? top,? sucking? hot? air out.
SWR? meter? was flaky.? SWR? would? increase as power? output? increased....which? is? nonsense? of? course.
I? believe? the? 2100Z? has? 160M.?
Pulse? tune? the? amp? (like? with? 60? wpm? dots.....and? use? a pep? meter)..should? get? aprx? 600 w? out.?

Local? buddy also? had? a new? 2100B.? ?I? tuned his,? and? promptly arced? the? bandswitch. His? was a parasitic? nightmare? from? day 1. Never? did? get? resolved.? ??
I? see? there? is a lot? of? mods? for? these? amps.? Beware,? it? has? taps for? 100/200? vac..for? JA? use.

Whatever? u? do,? don't? buy? either? version.? I? was glad to? get rid? of? mine.

Jim? ?VE7RF 
-- 
Please let me quote you for your parts needs!
I offer a discount on Protunes with parts order!
Clark Turner
480-695-2898

Re: fl2100z / Tentec Orion 2

 

My voltage here is 256. Same problem.

Sent from my T-Mobile 4G LTE device

------ Original message------
From: Alek Petkovic
Date: Tue, Feb 4, 2020 3:30 PM
Cc:
Subject:Re: [ham-amplifiers] fl2100z / Tentec Orion 2

The biggest single issue in this country (Australia) with the 2100 amps and a lot of others, for that matter, is the filament voltage. Due to our 240V to 250V mains, it is always high.

With the 2100 series amps, the filament voltage, at the tube sockets is typically 6.8 to 6.9 Volts.

Luckily, there is enough room under the chassis to install some series/parallel wirewound resistors, in the filament line, to bring the voltage back to the nominal 6.3V.

I have done this to at least 20 Yaesu amps over the years and in every single case, it has tamed them right down to become a good little amplifier with very few problems.

You can do all the other mods that you see floating around the net but I've never bothered. After the filament voltage has been corrected, I've never had an amp come back to me with problems.

73, Alek. VK6APK


On 5/02/2020 12:44 am, cturnertuning wrote:

I have a 2100B to use with the FT 101 station.? I take it to the cabin and use it on all bands. Typically run it at 500 out. Never had a single issue with it ever. Its possible it was worked on at some point and upgraded. I understand early 2100 and 2100B had real problems like you describe Jim.?

These amps where abused for sure as almost nobody hooked up the ALC and if you ran it with a 101 you then put 150 watts into it.? With the ALC hooked up and set, it backs the drive down to about 50 watts and has a clean output.? There is zero gain to place the amp on 240volt. The transformer does not have dual primary. It will just run the amp off one leg of the 240.

The Bias and Oscillation problems of early units is described here:

C

On 2/4/2020 4:06 AM, Jim VE7RF wrote:
I? had a brand? new? FL-2100B? back? in 1976.? ?Worked? on? all? bands...? for a while.??
Then? on? 10M,? it? flat? out? would? not? tune? properly on? 10M..into a flat? swr.?
The? xfmr? ran? very? hot.....even? when? on? standby? for an? hr.? (240? vac? ?60 hz)?
Cooling? was? very? minimal,? so added a? extra? fan? on? top,? sucking? hot? air out.
SWR? meter? was flaky.? SWR? would? increase as power? output? increased....which? is? nonsense? of? course.
I? believe? the? 2100Z? has? 160M.?
Pulse? tune? the? amp? (like? with? 60? wpm? dots.....and? use? a pep? meter)..should? get? aprx? 600 w? out.?

Local? buddy also? had? a new? 2100B.? ?I? tuned his,? and? promptly arced? the? bandswitch. His? was a parasitic? nightmare? from? day 1. Never? did? get? resolved.? ??
I? see? there? is a lot? of? mods? for? these? amps.? Beware,? it? has? taps for? 100/200? vac..for? JA? use.

Whatever? u? do,? don't? buy? either? version.? I? was glad to? get rid? of? mine.

Jim? ?VE7RF 
-- 
Please let me quote you for your parts needs!
I offer a discount on Protunes with parts order!
Clark Turner
480-695-2898

Re: fl2100z / Tentec Orion 2

 

开云体育

The biggest single issue in this country (Australia) with the 2100 amps and a lot of others, for that matter, is the filament voltage. Due to our 240V to 250V mains, it is always high.

With the 2100 series amps, the filament voltage, at the tube sockets is typically 6.8 to 6.9 Volts.

Luckily, there is enough room under the chassis to install some series/parallel wirewound resistors, in the filament line, to bring the voltage back to the nominal 6.3V.

I have done this to at least 20 Yaesu amps over the years and in every single case, it has tamed them right down to become a good little amplifier with very few problems.

You can do all the other mods that you see floating around the net but I've never bothered. After the filament voltage has been corrected, I've never had an amp come back to me with problems.

73, Alek. VK6APK


On 5/02/2020 12:44 am, cturnertuning wrote:

I have a 2100B to use with the FT 101 station.? I take it to the cabin and use it on all bands. Typically run it at 500 out. Never had a single issue with it ever. Its possible it was worked on at some point and upgraded. I understand early 2100 and 2100B had real problems like you describe Jim.?

These amps where abused for sure as almost nobody hooked up the ALC and if you ran it with a 101 you then put 150 watts into it.? With the ALC hooked up and set, it backs the drive down to about 50 watts and has a clean output.? There is zero gain to place the amp on 240volt. The transformer does not have dual primary. It will just run the amp off one leg of the 240.

The Bias and Oscillation problems of early units is described here:

C

On 2/4/2020 4:06 AM, Jim VE7RF wrote:
I? had a brand? new? FL-2100B? back? in 1976.? ?Worked? on? all? bands...? for a while.??
Then? on? 10M,? it? flat? out? would? not? tune? properly on? 10M..into a flat? swr.?
The? xfmr? ran? very? hot.....even? when? on? standby? for an? hr.? (240? vac? ?60 hz)?
Cooling? was? very? minimal,? so added a? extra? fan? on? top,? sucking? hot? air out.
SWR? meter? was flaky.? SWR? would? increase as power? output? increased....which? is? nonsense? of? course.
I? believe? the? 2100Z? has? 160M.?
Pulse? tune? the? amp? (like? with? 60? wpm? dots.....and? use? a pep? meter)..should? get? aprx? 600 w? out.?

Local? buddy also? had? a new? 2100B.? ?I? tuned his,? and? promptly arced? the? bandswitch. His? was a parasitic? nightmare? from? day 1. Never? did? get? resolved.? ??
I? see? there? is a lot? of? mods? for? these? amps.? Beware,? it? has? taps for? 100/200? vac..for? JA? use.

Whatever? u? do,? don't? buy? either? version.? I? was glad to? get rid? of? mine.

Jim? ?VE7RF 
-- 
Please let me quote you for your parts needs!
I offer a discount on Protunes with parts order!
Clark Turner
480-695-2898

Re: fl2100z / Tentec Orion 2

 

Make sure the Orion cam tolerate the keyline voltage of the fl2100z. Not sure, but you may need a buffer to protect the radio.
73, N0NC
Chuck
Re: fl2100z / Tentec Orion 2

 

开云体育

I have a 2100B to use with the FT 101 station.? I take it to the cabin and use it on all bands. Typically run it at 500 out. Never had a single issue with it ever. Its possible it was worked on at some point and upgraded. I understand early 2100 and 2100B had real problems like you describe Jim.?

These amps where abused for sure as almost nobody hooked up the ALC and if you ran it with a 101 you then put 150 watts into it.? With the ALC hooked up and set, it backs the drive down to about 50 watts and has a clean output.? There is zero gain to place the amp on 240volt. The transformer does not have dual primary. It will just run the amp off one leg of the 240.

The Bias and Oscillation problems of early units is described here:

C

On 2/4/2020 4:06 AM, Jim VE7RF wrote:
I? had a brand? new? FL-2100B? back? in 1976.? ?Worked? on? all? bands...? for a while.??
Then? on? 10M,? it? flat? out? would? not? tune? properly on? 10M..into a flat? swr.?
The? xfmr? ran? very? hot.....even? when? on? standby? for an? hr.? (240? vac? ?60 hz)?
Cooling? was? very? minimal,? so added a? extra? fan? on? top,? sucking? hot? air out.
SWR? meter? was flaky.? SWR? would? increase as power? output? increased....which? is? nonsense? of? course.
I? believe? the? 2100Z? has? 160M.?
Pulse? tune? the? amp? (like? with? 60? wpm? dots.....and? use? a pep? meter)..should? get? aprx? 600 w? out.?

Local? buddy also? had? a new? 2100B.? ?I? tuned his,? and? promptly arced? the? bandswitch. His? was a parasitic? nightmare? from? day 1. Never? did? get? resolved.? ??
I? see? there? is a lot? of? mods? for? these? amps.? Beware,? it? has? taps for? 100/200? vac..for? JA? use.

Whatever? u? do,? don't? buy? either? version.? I? was glad to? get rid? of? mine.

Jim? ?VE7RF 
-- 
Please let me quote you for your parts needs!
I offer a discount on Protunes with parts order!
Clark Turner
480-695-2898

Re: fl2100z / Tentec Orion 2

 

I? had a brand? new? FL-2100B? back? in 1976.? ?Worked? on? all? bands...? for a while.??
Then? on? 10M,? it? flat? out? would? not? tune? properly on? 10M..into a flat? swr.?
The? xfmr? ran? very? hot.....even? when? on? standby? for an? hr.? (240? vac? ?60 hz)?
Cooling? was? very? minimal,? so added a? extra? fan? on? top,? sucking? hot? air out.
SWR? meter? was flaky.? SWR? would? increase as power? output? increased....which? is? nonsense? of? course.
I? believe? the? 2100Z? has? 160M.?
Pulse? tune? the? amp? (like? with? 60? wpm? dots.....and? use? a pep? meter)..should? get? aprx? 600 w? out.?

Local? buddy also? had? a new? 2100B.? ?I? tuned his,? and? promptly arced? the? bandswitch. His? was a parasitic? nightmare? from? day 1. Never? did? get? resolved.? ??
I? see? there? is a lot? of? mods? for? these? amps.? Beware,? it? has? taps for? 100/200? vac..for? JA? use.

Whatever? u? do,? don't? buy? either? version.? I? was glad to? get rid? of? mine.

Jim? ?VE7RF
Re: fl2100z / Tentec Orion 2

GG LL
 

FL2100B (not Z, but quite similar) with FT-450, at the club

Regards
Guillermo - LU5WE.

El 3/2/20 a las 17:49, David Perry escribió:
Anyone using a fl200z with anything...?
Re: fl2100z / Tentec Orion 2

David Perry
 

Anyone using a fl200z with anything...?
fl2100z / Tentec Orion 2

David Perry
 


Ive been very kindly loaned a 2100Z to try with my Orion 2.

Anything I should be aware of before I hit the "smoke on" button?



David G4YVM
Re: Question about Ameritron AL-1200 Amp (Uses one 3CX1200Z7 tube)

 

Cliff,? the? link? for? the? ameritron? site? does? not? work? for? the AL1200? manual? (nor? the? AL-1500,? under? downloads).??
The 2nd? link? works....? but? not sharp,? slightly? blurred.? Appears? that? the? step? start? resistor is? 'R3".... and? is a 10? ohm? @ 12? watt unit.? (lou,? can? u? verify? the? value +? wattage).
RLY-2? is? listed? as? a ..'SPDT? 120 vac? AC? relay'...? wired? as a SPST.? ?(NC? contact? not? used).? ? No? current? ratings? given.
I? see? no? delay? circuit for? RLY-2? anywhere...except? for? the brief? V? drop? across R3...which? temp? kills? the? V? into RLY-2. (imo,? that's a piss? poor? excuse? for a? 'delay? circuit').
With? only? 10? ohms? for? the? step? start? resistor,? the? filter? caps? will? charge up extremely? fast...and? RLY-2? will? activate..almost? instantaneous.?
With only 10 ohms,? caps? will? be? almost? fully? charged....? which? will? minimize? the? secondary? surge...(that's? good).....IF? there? is? enough? of a delay? before RLY-2 activates.?
A? split? second delay? is? not long? enough.? It? requires a proper 2-3? second delay? circuit.? They? could? have? used a DC? relay, with? a simple? RC? time? constant....or a programmable? timer.

Jim? VE7RF? ? ??
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