When I tried one of Dennis’ KT88 Fire Bottle amps a couple of years ago, I was told that the transformers in the KT88 would not handle the KT150 tubes. Even back then, Dennis was making amps with different (larger) transformers where he was running KT150 tubes in a SEP design.
His recommendation was to buy a KT150 Fire Bottle amp, with the larger transformers, if you wanted to run the KT150 tubes. Hence, upon Dennis’ recommendation, I never tried the KT150 tube in my KT88 Fire Bottle amp.
Of course, as you may know, I had NO success at all with the KT88 Fire Bottle amp with my 90 dB, 8 ohm Soliloquy speakers. I tried the KT88’s and 6V6 output tubes (Dennis’ favorite), but sadly neither worked well at all.
I have heard that some folks love Had’s Fire Bottle amps though, so there is much to be said about system synergy and varying tastes.
On the other hand, I have had success with SR Black fuses, so take that for what it’s worth. ;^)
His recommendation was to buy a KT150 Fire Bottle amp, with the larger transformers, if you wanted to run the KT150 tubes. Hence, upon Dennis’ recommendation, I never tried the KT150 tube in my KT88 Fire Bottle amp.
Of course, as you may know, I had NO success at all with the KT88 Fire Bottle amp with my 90 dB, 8 ohm Soliloquy speakers. I tried the KT88’s and 6V6 output tubes (Dennis’ favorite), but sadly neither worked well at all.
I have heard that some folks love Had’s Fire Bottle amps though, so there is much to be said about system synergy and varying tastes.
On the other hand, I have had success with SR Black fuses, so take that for what it’s worth. ;^)