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40-150 Update
#9

I finally got this thing up and running last night. It took quite a while before I started to get at least noise through the speaker. That's when I discovered both the On/Off/Tone control and the Volume control had issues. As it turned out both were shot. Thanks to a fellow member on ARF I was able to get a good pair of used controls. I installed them and with just a bit of tinkering last night she finally plays.

This was a rough one. The variable capacitor was corroded and initially frozen as were the idler wheels for the dial string. A couple of the loktal tubes were unreadable and as a result were switched in their sockets. One octal socket was cracked across. None of the octal socket pin sockets made contact and had to be squeezed with a needlenose pliers. The electrolytics were miss-wired. There was a small black "jelly bean" where a mica was spec'd. I have no idea what that soft gooey glob was but it's gone now. The push button mechanisim was messed up and had several wires disconnected. The dial scale was so dirty some numbers weren't visible and the dial scale reflector was filthy. And,,,, there was all that wonderful rubber wiring. But,,, she's all better now! Icon_biggrin

Now I have to wait for Spring to do the cabinet.

Larry


Messages In This Thread
40-150 Update - by rocketeer - 11-04-2011, 06:43 PM
Re: 40-150 electrolytics question - by rocketeer - 11-05-2011, 06:52 PM
Re: 40-150 electrolytics question - by Arran - 11-05-2011, 11:04 PM
Re: 40-150 electrolytics question - by gvel - 11-06-2011, 09:11 AM
Re: 40-150 electrolytics question - by rocketeer - 11-06-2011, 10:30 AM
Re: 40-150 electrolytics question - by 7estatdef - 11-08-2011, 04:37 PM
Re: 40-150 electrolytics question - by rocketeer - 11-20-2011, 03:53 PM
Re: 40-150 Update - by gvel - 11-20-2011, 05:49 PM
Re: 40-150 Update - by rocketeer - 11-21-2011, 05:55 PM



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