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23rd January 2010, 12:25 AM
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#1 |
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diyAudio Member
Join Date: Feb 2005
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Inherited these tubes. Anything interesting?
My dad recently gave me his old tube caddy. Here are its contents. I recognize a couple, but the vast majority are just random numbers to me. Is there anything here amp-worthy?
..Todd ***************************** OCTAL GLASS BRAND ***************************** 6SN7GT STRK 6SN7GT STRK 6SN7GT STRK 7591 WEST 7591 MARC 6DQ6B/6GW6 RCA 6DQ6B/6GW6 RCA 5Y3GT STRK 5Y3GT STRK 117L7/M7ET ROGR 6L6GC RCA 25W4GT WEST 6AX4GTB GE 1B3GT GE ***************************** OCTAL METAL BRAND ***************************** 6K7 WEST 12SQ7 SYLV 6J5 STRK 6J5 STRK ***************************** 9-PIN GLASS BRAND ***************************** 12BA6 CHAN 12AT7 MARC 12AT7 MARC 12AU7A HITR 12AU7A DIXI 7199 GE 6AL3/EY88 ROGR 6BM8/ECL82 ROGR 6FQ7/6CG7 SYLV 6S4A ROGR 6X8 GE 5AT8 WEST 5CL8A GE 1S2A/DY87 MARC 1X2B CHAN 1X2B GE 5763 SYLV ***************************** 7-PIN GLASS BRAND ***************************** 6BZ6 GE 6X4 HITR 35WR SYLV 6AH6 MARC 6AU6A HITR 12AV6 HITR 12CU5 HITR 6C4 SYLV 6CU5 GE 5651/G6A GE 6202 GE ***************************** OTHER ***************************** 6LB6 12-PIN GLASS |
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23rd January 2010, 01:14 AM
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#2 |
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diyAudio Member
Join Date: Nov 2007
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Well, I'm fairly new to tubes, but I recognise a number that have a good rep in audio:
6SN7 (preamp), 6L6 (power amp), all the 12a*7 preamp series, 7199 preamp(vintage gold as I understand), ECL82 (combo). There will be others too. The 5Y3 and 6x4 are low current rectifiers. Good for small amp/preamp stuff. All in all, you have a good score there! |
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23rd January 2010, 01:31 AM
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#3 |
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diyAudio Member
Join Date: Apr 2004
Location: Plainsboro, NJ
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The 6AU6 can be used as a small signal audio pentode.
The 7591 is a very nice power O/P type that's as easy to drive as "12" W. tubes. An honest 30 W. from a PP pair of 7591s is easy enough to do. The 6FQ7 is electrically equivalent to the 6SN7. That tube, along with the 6X4, give you the makings of a line stage. The 6C4 is 1/2 a 12AU7. The 35W4 is a half wave rectifier found in transformerless (therefore dangerous) AC/DC radios. Something could be made of a pair, in a hybrid bridge rectifier setup. The 25W4 is the same tube, with a lower voltage/higher current heater.
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Eli D. |
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23rd January 2010, 02:14 AM
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#4 |
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diyAudio Member
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The 117L7 can be used to make a small one-tube AM transmitter.
Build an AM Radio Transmitter |
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