In terms of bias idle heat dissipation EL34s don't run hot in a Mk iv they run pretty cold, even in those outer sockets., which, although hotter than the inner ones, are still designed for 6l6.
The comment about r2 finding finesse is right on. I have been finding this channel better and better the more I lower the gain. I have it at about 4 now, and it's a great semi-clean edge of breakup. When I was trying to use it as a 'crunch' channel with gain settings of 8-10 I couldn't get it...
thanks for the comments, I think my problem with the 4 6v6 ihas been with the particular tubes I have. They are JJ's and they idle in the middle slots at 3 mA. I also subbed an old GE that I have in one of these slots, and it idled at 5. I think one must needs really high idle current tubes in...
Has anybody (else) tried this:
JJ 6v6s in class A (plate voltage is 404 in tweed mode, which should be perfectly safe) - I've been doing this for a couple months and it sounds great, esp. the clean and r2 channels. Going to simulclass with these tubes really hurts the sound because the middle...
First post - The highest I've ever had my MKIVa/EV combo was 8 at full power (ind. masters were probably only on 3-4 though) at a show in a huge VFW hall This band was insanely loud and I was constantly trying to get the rest of them to turn down, which was futile. The thing is, depending on the...