QRZ Forums - "Boat Anchor" & Classic Equipment for Saturday 25 March 2017
"Boat Anchor" & Classic Equipment
/////////////////////////////////////////// Testing 12AY7 tubes Posted: 25 Mar 2017 06:06 AM PDT http://forums.qrz.com/index.php?thre...-tubes.559162/ I recently came into a box of 12Ay7 (GE JG-6072) tubes. I have no need for 26 of them, so I was going to keep a few for projects and sell the rest to buy more radio toys. I tested them on my Mecury 1000 tester, and they ALL come in around 850 mhos. I read that the 12AY7 has a gain of around 45% of a 12AX7. The book says that a 12AX7 should read 1800, so 45% of 1800 is around 810. Am I incorrect in believing the 12AY7 has good strong output if it only reads 850 on my tester? I want to... Testing 12AY7 tubes |
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