No EL tube amp - PP film filter caps

[Chuck H]

You can use dry tantalums for preamp bypass. The good ones that look like biege plastic bullets, not the little blob ones that all the old timers tell me blow up regularly. I've been using them for years with no failures (accidentally installed one in reverse polarity for a month before it was fixed with no failure). I use 15 and 25 volt Kemet tants. I think they sound better for this application than aluminum caps. They are OEM in most Mesa amps too.

http://www.mouser.com/catalog/catalogUSD/639/883.pdf

Chuck

[tedmich]

I couldn't help myself, I had to buy these:

four metalized polypropylene 60uF caps, 330VAC 2" x 2".....they were <$5 each....


So now I can make my electrolytic less (ELno) amplifier a reality!

He still has 9 of these left:
3.5" OD! 40uF but almost $15 each...
ebay 170369838377

The Carr Vincent uses 10-18uf PP film/foil filter caps, ~60uF total filtering tops!
Some at HC says its noisy....

Guy on ebay lied to me! He sent 5 not 4... now less than $4 each and he packaged them like nuclear war heads, best packaging I have ever seen on the bay AND he ran the capacitance and ESR at 1kHz and labeled each cap....very nice! his name is johnny_toroid and he's a 100% @ 3339 transactions.

the caps are, as advertised, HUGE, may name the amp the "Diggler" as that's about what they add up to...

which wick do I light on these votive candles?

[tubeswell]

Wasn't R.G. designing what he called "the immortal amp"?
IIRC it was called the "Workhorse". I think he used motor caps in the power supply. Does Visualsound still make them? I can only find pedals on their website.

Cheers,
Albert

You should be able to find motor-run caps through an auto electrical wholesaler. (At least that is where I can find them)

[Albert Kreuzer]

You should be able to find motor-run caps through an auto electrical wholesaler. (At least that is where I can find them)

Oops, what I meant to say was "does Visualsound still make the Workhorse amps?" and not "does Visualsound still make motor-run caps ?"

Cheers,
Albert

PS: Gonna try motor caps in a frequency dividing network. Never was a fan of bipolar electrolytics.