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Bottlehead Forum Welcome! Need support, you got it. Or share you ideas and experiences. |
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Bottlehead Forum Welcome! Need support, you got it. Or share you ideas and experiences. |
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In Reply to: Re: 958a posted by Doc B. on January 27, 2006 at 08:35:01:
I was able to control the bell ringing by dropping the filament voltage a bit. Steve Bench got me onto that when I built his 512 6088 battery phono preamp. Those little tubes will howl with the slightest filament over voltage--drop it down a bit and pay atention to physical vibration isolation made a big difference. Though 958As have not been as bad as others in my experience. Probably because their filaments are shorter.
Matt
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Follow Ups
- Bell ringing - mwiebe 11:15:37 01/27/06 (1)
- Re: Bell ringing - Doc B. 11:35:43 01/27/06 (0)
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