"jap" wrote in message m...
Hello all,

This is my first post, so please be kind.

My Grandpa was an avid Ham and Shortwave Radio enthusiast. After he
passed, I found a box full of old tubes in his garage. I would like to
gain some knowledge about the applications of the various tubes, and
ultimately find out if they would have any value to a collecter. Below
is a complete list, along with what cross reference numbers I have been
able to locate, so far. Any help with THAT is also much appreciated!
=====================
Vintage Vacuum Tubes:

Count Tube# Cross Reference #'s
===== =====
===================
8 16A (6AM5)
1 16Z (???)
1 1A7GT (DK32,X14)

3 1B3GT (DY30,U41)

1 41 (???)

1 5-30 (???)
1 5R01 (???)
1 5R4GYA (???) rectifier
3 5U4G (5Z10,GZ31,U52) rectifier
1 5U4GA/B (H52) rectifier

1 6AG7 (6L10, OSW2192, OWS2601)
1 6AQ5 (6L31, BPM04, EL90, N727) audio output
1 6B8H (???)
2 6BA6 (6F31, EF93, PM04, W727) often used as an RF or IF amplifier
1 6BL7 (???)
1 6BQ6 (???)
2 6F6G (KT63) audio output
1 6CU6 (???)
1 6J5 (L63,L63B,OSW3112)
1 6K7 (EF39,OM6, PF9, W147, W61, W63)
1 6K8 (6C31)
4 6L6 (EL37) audio output - commonly used in old guitar amps and radio/phonos
1 6N7GT/G (???)
1 6Q7 (DH63)
1 6R17 (???)
1 6SH7 (???) very common in older radios
9 6SN7 (???) ditto
3 6SQ7 (OSW3105)ditto
1 6W4GT (???) rectifier
1 6Z4 (6BX4) rectifier

1 7F7 (???) "loctal" tube, probably from a car radio

1 9A4 (???)
1 9AX (6Q7?)

2 OC3 (G105/1D,KD24,QS1206) ballast
1 OD3 (???) ballast
=====================

Thanks so much, in advance, for your collective assistance!

Best regards,
Alan Pollard
--

An old (late 40's or 50's) tube manual would ID all these for you.