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Old 8th January 2012, 08:55 PM   #371
InSides is offline InSides  Macedonia
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Thanks for that - the original GE datasheet for 6V6 notes that any mounting position is fine. Couldn't confirm for 5AR4 though.

Also, on the note of the cathode bypass capacitor, I've seen several values used on the thread, ranging from 220uF to 1000uF in various schematics. Has the consensus been reached at 1000uF? Elna Silmic II is readily available in 1000uF @ 35V.
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Old 8th January 2012, 09:11 PM   #372
Salas is online now Salas  Greece
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Its a nice one, had used it also for long.
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Old 8th January 2012, 09:54 PM   #373
InSides is offline InSides  Macedonia
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How about the 1M Kiwame at the output? I was only able to find a 5W 1M Kiwame, but I see some of the schematics also used smaller values. Is that value critical?
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Old 8th January 2012, 10:08 PM   #374
Salas is online now Salas  Greece
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Down to 470K not critical.
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Old 9th January 2012, 08:21 AM   #375
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Quote:
Originally Posted by stajo View Post
Which pot values seemed to work out best for the CC version, 50 or 100 k?

I used a 1 k Dale CW-2B-13 non magnetic wirewound as gridstopper, seemed to work. Other preferences?

Did you find other cruical components like anode/kathode resistors, bypass caps etc, except the output cap of course.


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Resistor: Mills
Capacitor: Black Gate
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Old 9th January 2012, 08:23 AM   #376
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Quote:
Originally Posted by InSides View Post
Thanks for that - the original GE datasheet for 6V6 notes that any mounting position is fine. Couldn't confirm for 5AR4 though.

Also, on the note of the cathode bypass capacitor, I've seen several values used on the thread, ranging from 220uF to 1000uF in various schematics. Has the consensus been reached at 1000uF? Elna Silmic II is readily available in 1000uF @ 35V.
If you don't get BG look for Panasonic FM.
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Old 9th January 2012, 08:40 PM   #377
InSides is offline InSides  Macedonia
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Quote:
Originally Posted by merlin el mago View Post
If you don't get BG look for Panasonic FM.
I had thought Elna Silmic II is preferred over Panasonic FM. I can readily acquire Elna Silmic II.
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Old 9th January 2012, 10:14 PM   #378
Bonsai is offline Bonsai  Taiwan
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Any recommendations for a good line out transformer? I will need to drive quite a low load impedance (few k) so capacitive coupling is not the preferable output coupling option.

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Last edited by Bonsai; 9th January 2012 at 10:26 PM.
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Old 9th January 2012, 10:40 PM   #379
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Quote:
Originally Posted by InSides View Post
I had thought Elna Silmic II is preferred over Panasonic FM. I can readily acquire Elna Silmic II.
I have had excellent results using the Elna Silmic IIs as cathode bypass caps if that helps.
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Old 9th January 2012, 11:26 PM   #380
tinitus is offline tinitus  Europe
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if you open a new thread with your power amps, I will move these post over

seems like 'wasted' here, once this thread returns to topic

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