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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: Here's the output stage of the Marantz 8 posted by Tre' on August 25, 2023 at 06:11:47:
This explains how to use the math after reading the voltage across the small sensing resistor and adjusting the bias pot to change the negative voltage at the grid until you get the voltage that corresponds with the idle current you are trying to set.
Again, the VTL amps are fixed bias with a sense resistor in the cathode circuit so there is a place to measure.
Tre'
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Follow Ups
- Here's VTL explaining biasing their amps - Tre' 08/25/2306:32:11 08/25/23 (4)
- Here is another fixed bias amplifier - Tre' 06:47:00 08/25/23 (3)
- for contrast here is an amplifier with cathode biased output tubes - Tre' 09:25:50 08/25/23 (2)
- He has abandoned ship - Triode_Kingdom 12:05:15 08/26/23 (1)
- Maybe. nt - Tre' 17:04:07 08/26/23 (0)
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