do el34 en kt88 have the same pinout than? thanx
Not really the same, pin 1 is the suppressor grid in the EL34, but in your amp you can
plug in a KT88; the pinout
isn't the issue IMO.
I think the issue is the current draw requirements for a KT88, 100ma more for the heater, more plate current, etc. vs. an EL34 taxing that little power transformer, the one everyone keeps mentioning as being "too small".
The entire power supply would be working a lot harder, and it's already
working it's little butt off with EL34's installed. I doubt (but don't know for sure) if you could even get the bias close enough to spec with a pair of KT88's installed.
indicator as to it being a less than good idea; those fuses
that also keep getting mentioned, why do you imagine that they are only 2 amp while the KT88/6550 amps require a 3-4 amp fuse?
Also, why you would want
to use the KT88's? You know you wouldn't get more power using KT88's in that amp, right?
I'm not trying to be obnoxious, I'm just curious as to why you would want
to. If I'm missing something I'd like to know...