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In Reply to: 6SL7 Tube Recommendations for Aretha Preamp posted by escape2cfc on September 13, 2021 at 20:57:56:
Octal 6SL7 is very close to 9 pin mini 5751. μ = 70. Good OS 6SL7s are NOT easy to come by. The RCA tubes you have easily could be outstanding.
A possibility is building/buying Loktal to Octal adapters and using Loktal 7F7s, which are electrically equivalent to 6SL7s. You can count on Sylvania using the same "cages" in both 6SL7s and 7N7s. They were in business to turn a profit. ;>)
Eli D.
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Follow Ups
- RE: 6SL7 Tube Recommendations for Aretha Preamp - Eli Duttman 02:31:47 09/14/21 (1)
- RE: 6SL7 Tube Recommendations for Aretha Preamp - escape2cfc 07:09:49 09/14/21 (0)