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previous: Ray Ivers Danhei,Have you dea... -- 7/9/2000 8:28 PM View Thread

Re: Ampeg V4B Bias Mod, 6550's no good?,etc.

7/9/2000 10:18 PM
Tom L
Re: Ampeg V4B Bias Mod, 6550's no good?,etc.
Ray (and Casey4s too),  
Thanks for the info on the bias mod.  
I might not be the best person to answer the question about 6550s, but from what I can determine, pins 1 & 4 are not connected within the tube. So this becomes an issue only if the amp design connects the two pins together (according to Uncle Ned's 7027 FAQ, this is the case with some B-18s). It should not be an issue in a V-4, which has no connection to pin 1.  

Ray Ivers Tom,Yes, you're rig... -- 7/9/2000 10:41 PM
Casey4s Tom,On my VT22 pin one of t... -- 7/9/2000 10:55 PM