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Old 15th January 2012, 11:58 AM   #1
leapingknome is offline leapingknome  United States
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Default b-2 amp

hello all- currently playing with a yamaha b-2 power amp. yep...its got blown v-fets. has anyone out there come up with subs or circuit mods to compenstae for the impedance factors of the v-fets?
regards, leapingknome
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Old 15th January 2012, 09:34 PM   #2
CBS240 is offline CBS240  United States
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That is unfortunate if they are blown. Those special devices are very difficult to get, and even if you can find someone who has them, they will want an arm and half a leg for them, that is if they know what they are. If I'm not mistaken, those are normally on devices so if you are measuring Rds with them out of the circuit they should show up as nearly a short. You can build a test rig to be sure, Vp should be ~10V.
All the trouble I've ever been in started out as fun......
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