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Old 2nd July 2012, 09:56 PM   #41
juma is offline juma  Germany
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Quote:
Originally Posted by Zen Mod View Post
it's already faked , I think by revintage
Actually by O.H. Schade, some 80 years ago...
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Old 2nd July 2012, 10:02 PM   #42
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of course , that's why is clearly called Shade feedback , in posting by revintage
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Old 2nd July 2012, 10:19 PM   #43
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Default some threads worth checking

The Trioderizer

Watt Sucking Fireball Series

If You Don't Have a SIT, Fake It...
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Old 2nd July 2012, 10:27 PM   #44
juma is offline juma  Germany
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Originally Posted by Zen Mod View Post
of course , that's why is clearly called Shade feedback , in posting by revintage
Or in posting by Michael Koster before that.
Anyway, original publication is available on tubebooks for ages...
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Old 2nd July 2012, 10:37 PM   #45
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yup

and RDH and never-ended debate - is triode just pentode with neg. feedback , or is pentode just triode with pos. feedback ........

or later thing called fetron , which is maybe ( and just maybe) reason why Papa Borbely liked some arrangements , which I (as always naively searching for Graal and trying things invented by giants ) was finding as somewhat starved fet conundrum .......
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Old 2nd July 2012, 10:55 PM   #46
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Originally Posted by Zen Mod View Post
...or later thing called fetron...
I actually had some of those as spare parts for Collins short wave equipment but they were vaporized together with other good stuff when NATO bombed our telecommunication center in Lipovica during the spring of '99...
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Old 2nd July 2012, 10:57 PM   #47
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sadly - same as stash of toobz in Orlovat

anyway - nuff of off topic in this tread , from me .

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Old 3rd July 2012, 04:49 AM   #48
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Quote:
Originally Posted by janneman View Post
Why not? Need to find a facility with a dozen solder stations or so.
Unless you live in sunny California, then you do it as we did at my buddy Dana's place...

Amp Camp:
On the extreme left, "sparky", to the right of him is Papa Pass. I'm in the yellow T-shirt.
Of course you need a "land yacht" for decor
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Old 3rd July 2012, 04:58 AM   #49
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Nelson stayed until every amp was working.

Imagine saying this: "Nelson Pass taught me to solder"
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Last edited by Variac; 4th July 2012 at 12:53 AM.
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Old 3rd July 2012, 09:37 AM   #50
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so

now we can call this subforum - Papa's Amp Camp

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