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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: Question... posted by fatbottle on January 26, 2007 at 08:44:50:
OK, but a bit like a 2 position gas pedal on your car - not exactly what you would call a fine adjustment...To get the accurate DC balance you want (and need) - an adjustable bias balance will be needed. Not just for the initial setting but to allow for tube drift across time. My DHT diff poweramps have a top panel metter and the 10 turn trim pot. needs a tweak about once a month - after the first month - during the first month of new tubes it needs a tweak every day...
Regards, Allen
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Follow Ups
- reverse the filament connection and the operating point changes - Allen Wright 04:43:07 01/27/07 (1)
- Re: reverse the filament connection and the operating point changes - fatbottle 13:54:23 01/28/07 (0)
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