grid stoppers?

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es347
Junior tube assistant
Posts: 12
(2/16/04 8:12 pm)
 grid stoppers?
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 On Hoffmans 5f6-a layout He has 1.5k resistors on pins 5 and 6 of the power tubes. Are these called Grid stoppers? What is there purpose? Should I put them on my Build? I used the original Fender schematic and Layout for mine and they don't have them on there. Thanks Mike.
 
GroundhogKen
Forum Moderator
Posts: 2272
(2/16/04 9:21 pm)
 Re: grid stoppers?
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 Yes, those are grid stoppers. They suppress high frequency oscillation and tame blocking disortion.

I recommend using them.

Fender used 1500 ohm, Marshall 5.6K, Hiwatt 22K.
If the value is too high you might notice some loss of high end.
Ken

 
 
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