10-04-2016, 03:56 PM
Hi.
I've just repaired a Roberts R300 that was unstable. All three AF117's had their screens removed but reconnecting them made no difference. I replaced all three with Russian GT332 transistors and the instability is gone!
I've just repaired a Roberts R300 that was unstable. All three AF117's had their screens removed but reconnecting them made no difference. I replaced all three with Russian GT332 transistors and the instability is gone!






