Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => EZ Board postings => Topic started by: Geezer on June 17, 2005, 09:07:07 pm
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Hoffman Amplifiers
> Tube Amp Building - Tweaks - Repairs
> Cathode bypass cap question
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stan buczko
Junior tube assistant
Posts: 67
(2/15/04 10:53 pm)
Cathode bypass cap question
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Can i use a non-polarized electrolytic cap for a cathode bypass on a preamp tube? I thought i read somewhere that it didnt matter. Just checking. (getting old cant remember squat anymore). Thanks much.
Stan
Lucid Alice
Senior tube assistant
Posts: 160
(2/15/04 11:11 pm)
Re: Cathode bypass cap question
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The only reason a polarized cap is used is because it is the cheapest and smallest cap for large bypass values. You can use whatever you want.
stan buczko
Junior tube assistant
Posts: 68
(2/15/04 11:23 pm)
Re: Cathode bypass cap question
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Thank you, I thought it was something like that.
GroundhogKen
Forum Moderator
Posts: 2269
(2/16/04 8:23 am)
Re: Cathode bypass cap question
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Yes and furthermore...
...the .68uF cap frequently found on Marshall cathodes is just a regular film cap--not electrolytic, not polarized.
Ken
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