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38-116 updated it works!!!!
#22

Ron Ramirez Wrote:I take it you have fixed your rubbing voice coil problem?

Congratulations. Another fine old radio saved from being trashed. Good work! Icon_biggrin

Yeah, I played around with the field coil and noticed that it was a little loose and shimmed it with a couple of business cards. That took care of some of the noise. But it really seemed like the bass was distorting anytime I turned up the volume or increased the bass control. So I decided to try different impedance on the Output transformer and that seemed to solve my problem. Depending on the program material playing I still get some distorted bass on the high bass setting. However I think this is because I used .1uf capacitors to replace the .08uf that were in the tone control. Plus even AM stations seem to turn up the bass a lot anymore. I was worry about low bass response because the 125E is only rated 150Hz - 15kHz but it seems fine. I imagine when I get it back in the cabinet I will hardly ever use the increase bass controls.

Rod


Messages In This Thread
38-116 updated it works!!!! - by hotrod - 05-01-2010, 03:28 PM
Re: 38-116 IF transformer question - by hotrod - 05-01-2010, 07:55 PM
Re: 38-116 IF transformer question - by hotrod - 05-02-2010, 06:12 PM
Re: 38-116 IF transformer question - by hotrod - 05-02-2010, 08:28 PM
Re: 38-116 updated it works!!!! - by Ron Ramirez - 05-25-2010, 09:31 PM
Re: 38-116 updated it works!!!! - by hotrod - 05-25-2010, 10:33 PM
Re: 38-116 (It Rocks) - by hotrod - 05-31-2010, 06:36 AM
Re: 38-116 updated it works!!!! - by Ron Ramirez - 05-31-2010, 07:50 AM
Re: 38-116 updated it works!!!! - by hotrod - 05-31-2010, 05:08 PM
Re: 38-116 updated it works!!!! - by radiomikee - 06-06-2010, 09:49 PM
Re: 38-116 updated it works!!!! - by hotrod - 06-08-2010, 02:01 AM



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