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#1
07-28-2003, 06:16 PM
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Ebay 12 AP4 Crt ???
Did anyone else follow this auction?
Item # 2183754833 It was listed as a 12 AP4 CRT, but sure looks like a 12LP4, and it closed at a mind boggling $517. A bargain if it was a 12AP4. I emailed the seller and explained it wasn't an AP4 and sent a picture of the real thing, of course no response. I wonder how long it will take the buyer to realize he bought the most expensive 12LP4 in history. Chuck
__________________
www.myvintagetv.com Learn from the mistakes of others - You can't live long enough to make them all yourself. 
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#2
07-28-2003, 06:55 PM
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Well it does say 12AP4 on the base cap.
Is the 12AP4 a Pre War tube?
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#3
07-28-2003, 07:15 PM
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Eric,
No idea why the it's labeled that way. The 12AP4 was used on most of the 12" pre war sets. Notice the HV connection near the neck of the tube. Here's a picture of the real thing: Chuck
__________________
www.myvintagetv.com Learn from the mistakes of others - You can't live long enough to make them all yourself.
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#4
07-28-2003, 07:54 PM
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Obviously different!
The seller says "Came from an old repair shop where it was found in an RCA 12LP4-A box." So that's probably what it actually is unless there were two different tubes with the same number pre and post WW2? Interesting thing is that buyer bought the pre war Andrea a while back so you would think he knows what he's doing?
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#5
07-29-2003, 12:54 PM
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The 12AP4 was sometimes labeled as 1803-P4.
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#6
08-06-2003, 06:32 AM
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The tube was rebuilt, and my guess is that the new base they put on was mis-labeled.
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#8
08-06-2003, 06:45 AM
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I wrote to the buyer and the two underbidders to warn them.
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#9
08-06-2003, 06:26 PM
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The 12AP4 has a medium 6 pin base (like those on old radio tubes) and a 2.5 volt filament. The tube shown on eBay has a 12 pin duodecal base, which was introduced after WW2 in 1946.
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#10
08-31-2003, 10:11 PM
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12ap4
The below site has a 12ap4.
http://www.tv-forums.com/forum/TV_Eq...bout_it_P2635/
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