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previous: Eric H Just thought Steve A's and Aron's p... -- 4/14/2000 1:11 PM

Re: Anybody built a Matchless Hotbox?

4/17/2000 10:04 AM
Lars	Re: Anybody built a Matchless Hotbox? I'm building one right now. I had some heater hum, did get rid of it by rectifi the 6,3 voltage. Now my problem is that when I goe over 60% on the gain it starts to oscilate, I have reduce the oscilation by rearrange the plateresitor, but still I can't goe over 60%. To night I will try to lower the plate resitor on gainstage one and two from 220K to 100K. I have lowerd the plate voltage from 280V to 245 but still it oscilate. The sound from the clean channel is little to bright for me, I will have it to sound transparant but with more volume. Channel 2 sounds pretty good. Lars

4/17/2000 10:04 AM

Lars

Re: Anybody built a Matchless Hotbox?

I'm building one right now. I had some heater hum, did get rid of it by rectifi the 6,3 voltage. Now my problem is that when I goe over 60% on the gain it starts to oscilate, I have reduce the oscilation by rearrange the plateresitor, but still I can't goe over 60%. To night I will try to lower the plate resitor on gainstage one and two from 220K to 100K. I have lowerd the plate voltage from 280V to 245 but still it oscilate. The sound from the clean channel is little to bright for me, I will have it to sound transparant but with more volume. Channel 2 sounds pretty good.

Lars

Replies:

Eric H Lars, someone else told me the clea... -- 4/17/2000 1:55 PM