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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: FULTON 's " Footlocker " Amplifier ... Finally Revealed posted by hahax@verizon.net on April 24, 2016 at 21:03:28:
I have owned several pair of 3045s (still have a pair). The problem was simply too much idle current. The amps had a plate voltage close to 500 VDC and the recommended bias setting was 75 milli-amps for an idle plate dissipation of 37.5 watts! The tubes wore out from too much heat. Plain and simple. I biased my amps at 50 milli-amps (25 watts dissipation) and the tubes lasted much longer.
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Follow Ups
- The problem with the 8045G was too much bias - garymuffley 10:42:17 04/25/16 (1)
- RE: The problem with the 8045G was too much bias - hahax@verizon.net 20:46:17 04/25/16 (0)
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