Name: Tim Armstrong
Email: tarmadilo@yahoo.com
Subject: HD150 Power Tubes, 6L6 or EL34
Thread: 195
Time: Sat, 13 Oct 2001 19:08:03 UTC
I checked Steve's excellent guide to MM amps (www.musicmanamps.info) and see that HD150s did have 6L6 tubes. There are several ways you can go (and please note that I'm NOT a tech, just an obsessed picker!). There are great 6L6 tubes available, and of course EL-34s (but they REQUIRE the tube sockets be wired in a certain way, and there's no guarantee the MM will be set up to take them so you'd need a tech to rewire the sockets).
There are other 6L6-compatible tubes like 6550s and KT-88 and KT-90 that are good high-voltage tubes.
Best advice: find a good tube amp tech! Where are you?
Cheers, Tim