Crate BX-100 amp
I got this in, and someone else had attempted to repair it, the other guy
told me he had replaced the finals several times but they kept failing on power-up. Looking at the output stage I think one of the FET's may be incorrect. Could someone check the schematic and see if this unit is supposed to have 2 IRFP140's for finals (both outputs N-channel?!)? I believe this should have a complimentary output pair, IRFP140/IRFP9140, N and P channel, but as I did not see it before parts were changed I'm not sure. Jammy |
Crate BX-100 amp
ampdoc wrote: I got this in, and someone else had attempted to repair it, the other guy told me he had replaced the finals several times but they kept failing on power-up. Looking at the output stage I think one of the FET's may be incorrect. Could someone check the schematic and see if this unit is supposed to have 2 IRFP140's for finals (both outputs N-channel?!)? I believe this should have a complimentary output pair, IRFP140/IRFP9140, N and P channel, but as I did not see it before parts were changed I'm not sure. Jammy Call SLM and they'll email you the schemo. Just for reference, posting in alt.guitar.amps will get more responses. |
Crate BX-100 amp
Meat Plow wrote: Most of the time ones that you might not want :) Heh...well those of us who haunt that group know that drill. And that's AWL THAT MATTERS ON THE INTERNET ;-) It has quieted down some after Lord Valve's semi retirement from the group. He does know the "skinny" tho......sorry, couldn't resist. |
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