KTC3228 and KTA1275 substitutions

bigpun4fubu · 2012-10-25 1:25 am

does anyone have part numbers for substitutions for the obsolete transistors KTC3228 and KTA1275 ?

Perry Babin · 2012-10-25 2:53 am

how are they being used?

bigpun4fubu · 2012-10-25 3:36 am

Drivers on the power supply board on an AudioQue 1200.1 D

bigpun4fubu · 2012-10-25 3:41 am

This same scenario

Perry Babin · 2012-10-25 4:00 am

I'd use the BD139 and BD140.

noobies · 2012-10-30 1:48 am

Is it okay too using Toshiba 2SA1930 & 2SC5171?

Perry Babin · 2012-10-30 9:19 pm

Those will likely be OK but you'll have to install them facing the opposite direction since their pin configuration is reversed.