RE: Fisher 500-C vs. Mcintosh 1500 receiver

Posted by henrybasstardo (A) on March 10, 2010 at 19:15:39

In Reply to: RE: Fisher 500-C vs. Mcintosh 1500 receiver posted by Marantzguy on March 8, 2010 at 11:30:09:

I have a 500C that I lost the mpx on

Reverting to mono is not in the front end. It's in the mpx.

Do you have static and screaming in the stereo mpx mode?

Check your b+ voltage on the mpx tubes. whoa!

Please let me know the results.

I have not had the time to go back into mine to straighten it out.

Works great on mono and Stereo automatic. Mpx voltages are off.

Anything can be fixed. I think a resistor has to be bad or upgraded because of the extra b+ current. The current comment is my theory and not a proven fix. I'm just
When I get back in there I will get the supply voltages to the mpx back to normal and I think all will be well.

I upgraded the power supply too and did it right like you have. reading 300V on the tube is obvious it's wrong. Work from there

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Follow Ups Full Thread

Topic - Fisher 500-C vs. Mcintosh 1500 receiver - geezerrocket 11:03:29 03/08/10 (15)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - Michael Samra 21:39:39 03/08/10 (5)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - Brian Levy 05:31:53 03/10/10 (3)

The MA-230 is the single worst piece of vintage gear that I have ever heard................................... - viridian 13:26:25 03/10/10 (2)

Both the Ma230 and the Mc240 - Michael Samra 03:51:58 03/11/10 (1)

I have no doubt that the amp can be improved; the iron is quite good. nt - viridian 07:48:51 03/11/10 (0)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - geraldm121 15:29:22 03/09/10 (0)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - Brian Levy 16:18:01 03/08/10 (1)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - Michael Samra 22:05:46 03/08/10 (0)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - Marantzguy 11:30:09 03/08/10 (6)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - henrybasstardo 19:15:39 03/10/10 (0)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - geezerrocket 14:51:21 03/08/10 (1)

RE: Fisher 500-C vs. Mcintosh 1500 receiver - Marantzguy 17:50:19 03/08/10 (0)

Owning both, I Say - Fishstink 13:41:58 03/08/10 (2)

RE: Owning both, I Say - geraldm121 08:07:22 03/10/10 (1)

RE: Owning both, I Say - wishfish 16:23:25 03/22/10 (0)

Follow Ups

RE: Fisher 500-C vs. Mcintosh 1500 receiver - henrybasstardo 19:15:39 03/10/10 (0)

RE: Fisher 500-C vs. Mcintosh 1500 receiver

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