Quote:
Originally Posted by hi_volt
RCA2000...got any pictures of your set after you unloaded it?
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I FINALLY was able to check out this set. It is not all that easy to go to my garage and mess around anymore, being on dialysis 3 days a week--which makes me VERY tired afterwards.
Anyway--it is out of the van and safely in the garage. I did that last month. But I was NOT able to check anything out--someone had CUT OFF my extension cord I had been using, when the robbed me last winter!!
Anyway---today I took my CR-70 and a couple of cords to my garage. I wanted to "see what was up". i was NOT able to tell which tube I have, not enough light in there to see the tag well, and it was NOT sunny out today.
But anyway--I decided to power up the set. I got power, and the filaments light, but something began to smoke under the chassis up front, close to that board mounted at an angle...and nothing else began to "come up", so I cannot tell what is up chassis--wise. The smoke had a "resistor smell" to me, maybe a diode.
But I DID check the CRT. I tested it as a 21FJP22, since the 70 checks the GUP the same as the FB and FJ. At first try---NOTHING!! Not even the slightest wiggle from the meter on red, even with increased voltage on the filament!! Then, I rechecked my setti9ngs, and discovered I had the cathode set on the WRONG position. This is one of the few weak points of the CR-70. The knobs, at least on the newer version, which I have--have a BAD design, with a setscrew that ALWALS gets loose, and causes the knobs not to adhere tight to the shaft!!
Once I had the cathode set right, and the tube on 6 volts, I re-checked it. THIS time--things looked different. It came up, somewhat slowly, into the good range and held there on the red gun. But the LIFE TEST did NOT hold all that well. I decided to go to 7 volts and it read a bit higher into the green, and holds a bit better on the life test. The other 2 guns read similar-- great on emission and cutoff too--but they all fall , slowly, on the life test. This tells me the tube is not great--but most likely quite useable for a vintage set--and will probably wake up more. I did NOT have time to "cook it" and check it later, either--only about 10 minuted time checking total....WAY too many "unwanted guests" hanging around. But it is FAR from being "dead".
THe hybrid stereo is not dead. I got weak FM and AM, and weaker stereo, with no antenna on the set. No caps got hot, but still, probably needs caps.