mordy
Headphoneus Supremus
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- Aug 8, 2010
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I am not sure if the 6J7 can be put straight into a 6J5 socket - I think that the pinout will not match. You may need a dedicated adapter.That's great to hear mordy! Have been closely following the dedicated 6J5 thread and have many tubes on the way. Am excited to hear how the super affordable black metals one sound in particular, have managed to source a pair of most US brands to roll through.
That's interesting for the 6J7 how it can use EL32 adapters, had not considered that. I wonder if there's any complications strapping the pentode into a triode via adapter instead of internally, especially if 6J7 straight --> 6J5 instead of 6SN7. Will keep an eye out for Brimar 6C5/6J7 for sure. Thanks!
If there is hum using the 6J7 in the EL32 adapter (same pinout) you can connect pins 1 and 8 with a little jumper. Pins 1&8 are easy to identify - they are located on each side of the guide pin of the tube.
The metal 6J7 are very inexpensive as well if bought right. RCA, GE and Ken-Rad are good bets for both the 6J7 and 6C5/6J5 all metal tubes. My theory is that these tubes are very inexpensive because there is zero tube glow and they may not look that pretty, especially with a little rust on them (but the rust has no effect on the sound; only on the price!).