RE: I almost won this Fisher SA-1000.

Posted by Michael Samra (D) on August 7, 2016 at 22:15:33

In Reply to: RE: I almost won this Fisher SA-1000. posted by Steve O on August 7, 2016 at 21:17:11:

Steve
You can run a 6550 or an EL34 as they are relatively close in plate resistance and plate to plate loading at the same B+..The only issue you may have is,you would probably have to mod the voltage amp or driver to make sure you are swinging enough clean driver signal,being the 6550 takes 3 times as much drive as a the 8417.The EL34 also takes considerably more to drive it but looking at the driver circuit,it is probably just a matter changing the plate load or cathode resistors,or maybe the grid leak resistors on the output tubes..I'm going to look at a schematic in a bit.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken

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Follow Ups Full Thread

Topic - I almost won this Fisher SA-1000. - Michael Samra 12:06:39 08/07/16 (17)

How does the SA1000 compare to- - Ross 15:07:21 08/08/16 (4)

RE: How does the SA1000 compare to- - Michael Samra 21:04:02 08/09/16 (3)

Do the McShane PS changes - Ross 08:30:14 08/10/16 (2)

RE: Do the McShane PS changes - Michael Samra 19:05:32 08/10/16 (1)

RE: Do the McShane PS changes - horn kid 13:03:35 08/20/16 (0)

RE: I almost won this Fisher SA-1000. - Alpha Al 20:33:31 08/07/16 (4)

"Unobtainium..." Somehow I don't think that applies... - musetap 21:40:23 08/07/16 (1)

RE: "Unobtainium..." Somehow I don't think that applies... - Michael Samra 22:17:15 08/07/16 (0)

RE: I almost won this Fisher SA-1000. - Steve O 21:17:11 08/07/16 (1)

RE: I almost won this Fisher SA-1000. - Michael Samra 22:15:33 08/07/16 (0)

RE: I almost won this Fisher SA-1000. - rockdoc 12:14:36 08/07/16 (6)

It's fast and nutral but musical... - kuma 16:27:17 08/07/16 (0)

RE: I almost won this Fisher SA-1000. - Michael Samra 12:31:28 08/07/16 (4)

RE: I almost won this Fisher SA-1000. - BillH 16:46:27 08/07/16 (1)

RE: I almost won this Fisher SA-1000. - Michael Samra 22:48:30 08/07/16 (0)

RE: I almost won this Fisher SA-1000. - spindoctor 16:39:25 08/07/16 (1)

True but I only bid 2130.00 and if the guy above didn't bid, - Michael Samra 22:19:59 08/07/16 (0)

Follow Ups

RE: I almost won this Fisher SA-1000. - Michael Samra 22:15:33 08/07/16 (0)

RE: I almost won this Fisher SA-1000.

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