smd
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SMD SMT surface mount replacement or equivalent for 2SC992 KSA992 2SC1845 KSC1845 BC549 BC550 BC559 BC560 low noise BJT transistors
Replacements for audio path through hole transistors are getting hard to find: The KSA992 and KSC1845 transistors are common replacements for many small signal BJT through hole transistors where low noise and high gain are more important than medium or high current. For super-low signals (think...- dlucy
- Thread
- ksa992f ksc1845 smd smd adapter
- Replies: 95
- Forum: Solid State
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Fisher 440-T Alignment Questions
I'm trying to finish the refurb of a Fisher 440-T that I worked over a few decades ago. It had some problems that remained, but I think I have fixed each of them, except for two. Fisher 440-T (transistor) SN: 34xxxB. I have the service manual beginning SN 20001, which seems to be the... -
Best way to replace unobtanium TO-92 pre-biased transistors?
I'm chasing down gremlins in a Denon tape deck, "shotgunning" really since symptoms are intermittent, and am focusing in this area: Pre-biased transistors are new to me. These are TO-92 through-the-hole types which don't seem to be made anymore except in a surface mount version, e.g. this... -
Well tip for soldering irons?
So, I’ve been doing a lot of smd soldering lately. I find surface mount frustrating as hell, but because of that I can’t blow through a project as quickly as I can a through hole or point to point. given the whole plague thing, I’ve had significantly more project time. I’ve killed two boards...