Hellcat poweramp issue

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kho

Hellcat poweramp issue

Post by kho » Mon Dec 27, 2010 1:35 pm

I just bought a Hellcat head, serial no 00024. Lovely sound and drive from the preamps on both channels, but: Even when I run the master volume on the vintage channel on absolutely full blast, I don't get any power tube overdrive. I have played Vox and Badcats and was hoping for some of the same power amp magic, but it just gets louder and harder, not fatter and richer. I retubed it with Mullards el84, but no change. The bias should be adjusting itself(?), so I don't get it. Any suggestions?

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