Laney Aor series 2 100 watt
Hey there,
I'm working on a Laney Aor 100 series 2 I bought for cheap knowing there's an issue. So here it is, the amp cannot get up to loud volumes at all. Go up to maybe 1/2 volume and it refuses to get any louder but the tubes continue to get hotter and hotter. The thing is which is weird is when it's pegged at max it sometimes does this flicker to max volume very quickly and then jumps down back to the lower volume. It is red plating power tube 4. I've got no idea other than the output transformer being bad. Anyone got any experience or any ideas?






Without sufficient negative voltage, the grid will not be able to allow electrons from the cathode to the plate. I'd stick a volt meter on it to make sure you have good grid bias. (Safely!!!!)