GT EL34M's in a Vintage Classic?

[lgehrig4]

I was at GC and I had forgotten exactly which Groove Tubes were recommended for this amp. They only had M's so I picked them up, but now I just read on another forum that the max rating for these tubes is 425V or something like that. According to my DMM, I'm getting close to 480V.

Anyone think I should try these or just return them? The info I read could be wrong.

 

[johnnyjellybean]

I was at GC and I had forgotten exactly which Groove Tubes were recommended for this amp. They only had M's so I picked them up, but now I just read on another forum that the max rating for these tubes is 425V or something like that. According to my DMM, I'm getting close to 480V.

Anyone think I should try these or just return them? The info I read could be wrong.

You had better find out the true max rating for the tubes because if they are really 425V, then you are just asking for trouble.

 

[lgehrig4]

Thanks, but I already returned them. I corrected the bias on the JJ's and threw in some NOS preamps and I'm in heaven. Seriously, I love this amp! What it does it does very very well. The tone is head and shoulder beyond my skills.

 

[steve_k]

I was at GC and I had forgotten exactly which Groove Tubes were recommended for this amp. They only had M's so I picked them up, but now I just read on another forum that the max rating for these tubes is 425V or something like that. According to my DMM, I'm getting close to 480V.

Anyone think I should try these or just return them? The info I read could be wrong.

I was going to pick up some GT EL34LS tubes. These are the one's with the heat sink and good for 30 watts.

Steve

 

[glip22]

I was at GC and I had forgotten exactly which Groove Tubes were recommended for this amp. They only had M's so I picked them up, but now I just read on another forum that the max rating for these tubes is 425V or something like that. According to my DMM, I'm getting close to 480V.

Anyone think I should try these or just return them? The info I read could be wrong.

I was going to pick up some GT EL34LS tubes. These are the one's with the heat sink and good for 30 watts.

Steve

Yep, These are what's reccommended. Get the 6 or 7 rating and your good to go. Just peel off those stupid yellow labels they use now. They stay cooler than JJ's and I think they sound better. At 480 PV, I wouldn't bias much higher than 33MA or 64%. 70% with a Wizard scares me because the plate and screen supplies are a little underfiltered. At least in my MC they were. I would love to pickup a VC.