I've been using tube based gear for 25 years. Always purchased my vintage tubes from trusted tube sellers. That being said, all of these are good tubes and expect long life left in them, but don't have any measurements. Most of these were made from 1940- 1970's)
Buy with confidence, if any are DOA, just mail them back and I will refund price of tubes.
Flat USA mailing for $10 or less.
1) pair of Tung-Sol 6x4 $26
2) pair of Tung-Sol 7F7 (6SL7 equivalent with adapters) Metal Base/Chrome Dome $26
3) 1 National Union 7F7 (6SL7 equivalent with adapters) Metal Base/Chrome Dome $10
3) 1 Raytheon 7F7 (6SL7 equivalent with adapters) Metal Base $13
3) 1 Sylvania 7F7 (6SL7 equivalent with adapters) Metal Base/Chrome Dome $13
4) Pair of label worn 7F7 (6SL7 equivalent with adapters) Metal Base/Chrome Dome $16
5) 1 Canadian GE or Sylvania 6SN7-WGTA brown base $12 (1962)
SOLD Pair Sylvania JAN 6SL7-WGT (1974) $20 Pending SOLD
SOLD Pair Russian Military OTK 6H9C / 6SL7 $20 (sound tested, Nice!) Pending SOLD
SOLD Pair CEI 6SN7-GT $15
9) Pair JAN 5687-WB (E182CC, CV2578 equivalent) $20
10) Pair Sylvania 6U8B and 1 RCA 6U8A $20 (sound tested, Nice!)
11) Pair of Raytheon Type 85 - $26 (For owners of deHavilland Mercury Preamp)
If you are interested in the 7F7 to use instead of 6SL7, and need adapters,(I am not selling adapters)
check out these:
https://www.ebay.com/itm/284585731785?hash=item4242a1a6c9:g:vHIAAOSwQrJbUX-q
