transistor substitute

Hi, I'm looking for a substitute for a transistor marked as "C900 F92A". The transistor was used in MCS 3235 receiver. I guess some early 80-s. Thank you for any advice.

Hello, Please could someone recommend a replacement for: 2SC673A. It's in an A-1 Yamaha amplifier at locationTR214 on the Power Supply Circuit Board. Actually, a replacement for TR215, 2SD526, would be super helpful too.

Need to replace a pair of OT’s on a Yamaha A-1. Have a couple of recommendations but can anyone say which transistor pair is best suited OR has worked well in this particular amp (or both, of course!) Would like to place an order today if possible, so all replies much appreciated. Existing...

Hello all, I'm doing a minimalist refurb of my Hafler DH-200, no real mods, basically just upgrading caps, a few key resistors, the power switch and rectifier bridge. I'm also looking to replace the 2N5550 and 2N5401 differential pair transistors to lower the offset - it has high offset on the...

Following up on https://audiokarma.org/forums/index.php?threads/sx-880-output-transistor-replacements-b705a-2sa1075.961503 -- I've had some ups and downs repairing the SX-880 (I'd shorted part of the power supply with a probe slip, and one of the output chips had shorted--one which had been...

Looking for a substitute for a 2SC627 at q5 q6. Manual list q5 q6 as a 2SC1124 which is not what i have, board awh-011. Recommendations would be greatly appreciated.

A constant topic - transistor substitution. I needed a sub for a 2sc1222, and as the dates on the threads change, so do the answers. Some is due to obsolescence, of course, but it is changes due to the understanding of how the transistor is applied in the circuit that seem the most important -...