07-10-2016, 06:28 PM
Well that looks pretty straightforward (looking at the one linked in post #4 - let me know if that's the wrong one).
Nothing beyond a single resistor to bias the output stage, which is rather crude, but perhaps more reliable than the alternatives. Make sure that resistor (Ra13 or Ra28) is OK.
After that, remember that TO1 devices can suffer from tin whiskers. It's not as commonplace as the TO7 package (AF117, etc), but it happens and could cause damage.
Nothing beyond a single resistor to bias the output stage, which is rather crude, but perhaps more reliable than the alternatives. Make sure that resistor (Ra13 or Ra28) is OK.
After that, remember that TO1 devices can suffer from tin whiskers. It's not as commonplace as the TO7 package (AF117, etc), but it happens and could cause damage.
