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#1
10-03-2006, 01:44 PM
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From the tube type numbers listed, they appear to be compactrons. These sets were made in the early Seventies and in my experience usually work quite well. I'm glad you saved it. Even many collectors won't look at a 12" black and white set. Matsuhita made sets are generally beter than average in performance and reliability. It looks to me like you've got a nice one. Some more detailed pictures would be nice.
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Just look at those channels whiz on by. - Fred Sanford 
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#2
10-03-2006, 01:47 PM
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The very orange 9" that Sandy refers to used to be mine. I speak from experience when I say these are nice sets. RCA made a few sets of a similar design.
__________________
Just look at those channels whiz on by. - Fred Sanford
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#3
10-03-2006, 02:09 PM
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hmm compactrons
Hey weren't compactrons GE technology? maybe they licensed the designs? If i'm not mistaken they were the multifunction tubes that worked like IC's (in principle) Either way, I have a 12" SS Panasonic with a green cabinet - made around 77 or so. I have always liked Matsushitas designs, and own many color sets from the 80s that wrked great as found. Oh, and i'll post better pics later this week, as I am not with the set right now.
CRT question- - is it possible that the CRT weakened during storage (lowered emission) and then came back to full operation after some use? After i cleaned up the tv, the raster had bad blooming under max brightness conditions, and would loss some focus, but after i ran it for a few hours, it acts like it was just replaced NOS. Oh, and i'm not referring to warm-up time or anything like that, as it is now strong even cold. interesting. Maybe it has to do with the instant-on circuit, but even after being unplugged for days it comes up good.
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#4
10-03-2006, 03:19 PM
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I have seen low emission on CRTs when sets have been stored for a long time. Assuming the tube was in good condition at time of storage, it will usually improve soon after being placed into regular service. I guess this is a good argument for not having more sets than one can use on a semi-regular basis - no need to worry about cathodes going to sleep from lack of use.
Regarding compactrons, I've seen them used in many different brands of sets, most likely licensed from GE since they were their technology. They made for good sets with a small footprint. They made the 9" tube TV really portable.
__________________
Just look at those channels whiz on by. - Fred Sanford
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#5
10-03-2006, 06:25 PM
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Most of these tubes are standard 9-pin like the 12AX7...the only different ones I see would be the tuner RF amp and sound discriminator (7-pin) and the 38HE7 horiz. output and damper. It may be a Novar type (large 9-pin) or a 12 pin Compactron, I can't quite remember. The name Compactron only properly applies to a 12-pin tube.
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#6
10-03-2006, 06:45 PM
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So the compactrons were all 12-pins. Okay now Im gonna open her up again and further observe these tubes.... Wonder why multifunction tubes weren't tried for audio equipment or were they? Seems like a very old attempt at amp miniaturization- Wonder if they would still sound sweet like a tube amp should. Anyway are there any Panasonics that are really collectable? The ony one i can think of is the 'flying saucer' b&w one
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#7
10-03-2006, 07:19 PM
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