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Hey Bob and Reece,
Thanks for responding so quickly. I know 'time' is an issue here......and I may just pack up the radio and take it with me in it's present state, and then work on it some while in Michigan. We'll see.......I may just trade it for a fountain pen and give that to my Brother ....ho ho ho!
From what I can see.....all the tubes do light up. I have cycled through the switches several times.....and I don't get so much as a pop or thud on the audible side when the switches are being pushed. But....like I said.....I can push the 'phono' button and then touch the screw head in the back of the unit marked 'phono' and I'll get a good hum from the speaker. Same when hitting the 'tape' button.....only a reduction in gain, presumably at the input itself.....or a matter of sensitivity differential between the Tape and Phono inputs. However, in both cases, it's evident that the audio amplification section is functioning.....so at least I know that much. But, again, when selecting ANY radio band......no noise whatsoever. I did jiggle tubes a bit, and still not static or change in condition. All tubes appear 'lit' EXCEPT the 'tuning eye' tube that is part of the front panel....and something that I seem to recall would illuminate with a blue or orange glow....either more or less brightly according to signal strength. I can't see the number on this bulb.....it appears to be a Telefunkin of some kind......but it's doing nothing from a functional standpoint that I can see. One other comment...the two dial lamps were a bit oxidized and inop when I first started, but now they both illuminate fine. The rubber grommets that held them into the panel both disintegrated when I move the bulbs.....but the lights themselves seem fine. So....that's an indicator of continuity, corrosion, and available voltage.
I guess maybe I've made some progress in diagnosing this thing....but I fear that the next real step may be actually removing the chassis from the box....and that does NOT look easy. I may just have to wait until I get to Michigan to attempt that. But, for now....any further suggestions are welcome....and again, thanks for the comments thus far.
Tom
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