OK, time for more fun! Here's my latest pickup:
Its an Inspire MB12 single ended pentode amp designed by Dennis Had.
Do you guys know who Dennis Had is? He was the founder of Cary Audio and the designer of all their gear. But the company grew too big & he got fed up working at a big company so he quit/retired. These Inspire amps are basically him just experimenting in his garage with cool ideas that they wouldn’t let him do at Cary.
The coolest things about these amps is that they are built to be able to tube roll like mad.
For example, the Rectifier can be a type 80, 5y3, 5u4, 5v4, or a 5ar4.
The input tube can be a 6bx7, a 6sl7 or a 6sn7.
And craziest of all, output tubes. They can be a 6v6, el84, 6L6, EL34, 6AR6WA, 6CA7, KT66, KT77, KT88, KT120, KT150, 6550, 807, 350B, and a few others that escape me at the moment.
The KT150 gives about 14 watts, the KT88/6550 gives 12 watts, the EL34/6L6/KT66/KT77/6CA7 give about 7 watts, the EL84 gives 2 watts.
So, uhm yeah..... I'm gonna have a BLAST tube rolling!!! I have a TON of pentode output tubes, a bunch of 6sn7 (and 6sl7) input tubes, and a fair number of rectifiers too. We'll see how it sounds.
I'll say this, I dropped in a some vintage GE 6SN7 input tubes, some new production Gold Lion KT77s and a pair of vintage Tung Sol 5U4G rectifiers and it sounds exceptional right out of the gate. Man, these amps can boogie!