Quote:
Originally Posted by Tube TV
I was just wondering if a socket adapter was used on the B&K 400 to test a 10BP4 ?
I cannot get any emmision reading off this tube , and it says that G2 is open , but pin # 6 on the B&K has no connection on a 10BP4 .
The 10BP4 should be OK , I had some dull raster , and that was with original caps in the set .
Any ideas ? 
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I don't know about the B&K 400, but my 465 doesn't use an adapter for the 10BP4. I would expect pin 6 of a 12 pin base to be used for G4 if a CRT has one. G2 on the 10BP4 is pin 10.
I'm not sure what it means by open. G2 should have infinite impedance so open would be good.
I have trouble with the socket on my 465. On some tubes it doesn't make contact very well.
John