Correct, the original Hitachi MosFets in TO330 cases went out of production so long ago that dinosaurs roamed the earth. The 1400 series used a plastic cased MosFet and these may still be available. You really can't blame B&K for running out of a spare part that is so long out of production. Perhaps buy a parts unit, the early Van Alstine amps used this part as well as several others. Good luck with the hunt!
Has B&K Stopped Servicing the ST-140?
I spoke to B&K about servicing my ST-140 some time ago and was told that B&K would not be servicing the units any longer, citing availability of parts. They recommended a new purchase (Surprise!), which I respectfully declined. I hope I am wrong here. I hope this has been remedied, but I suspect not. Someone PLEASE let me know if am wrong. I love my amp, a real workhorse and great value. I'd hate to think it's a boat anchor if anything finally goes or blows. Are there other sources for replacement parts and repair that anyone knows about? Is there anyone picking up the slack there? Otherwise, it might make sense to pick up a cheap working spare for parts scavenging. The best would be B&K being able to service and repair a venerable design.
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- 5 posts total
- 5 posts total