RE: How to bias this Fisher P/P EL84 amp

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In Reply to: How to bias this Fisher P/P EL84 amp posted by Awe-d-o-file on June 6, 2015 at 21:19:17:

the posts below are correct. If you want to see how well the tubes are balanced you could install a 1 or 10 ohm cathode resistor on each and then read the bias current directly, calculating using Ohm's law. With the plate voltage (which is probably higher than schematic) you can calculate dissipation and set tubes accordingly. Or just set it to about 33 v as in schematic and if nothing red plates it will be fine...

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Follow Ups Full Thread

Topic - How to bias this Fisher P/P EL84 amp - Awe-d-o-file 21:19:17 06/06/15 (8)

RE: How to bias this Fisher P/P EL84 amp - Tom Bavis 08:39:13 06/08/15 (1)

RE: How to bias this Fisher P/P EL84 amp - Awe-d-o-file 19:46:35 06/09/15 (0)

thanks everyone - Awe-d-o-file 07:23:59 06/07/15 (2)

RE: thanks everyone - Eli Duttman 08:20:12 06/07/15 (1)

RE: thanks everyone - Awe-d-o-file 11:06:24 06/07/15 (0)

RE: How to bias this Fisher P/P EL84 amp - dls123 06:11:00 06/07/15 (0)

My WAG... - FenderLover 22:11:14 06/06/15 (1)

RE: My WAG... - JonM 04:21:28 06/07/15 (0)

Follow Ups

RE: How to bias this Fisher P/P EL84 amp - dls123 06:11:00 06/07/15 (0)

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