This time, a BBC AM8/16. Basically, a BBC modified Quad 405 to drive the
LS5/8. Has a crossover added to the input to the amps.
One of the two produces a pretty loud squawk on switching off. Not a fault
as such, as plenty early BBC ones in service did the same. But the BBC did
seem to find a cure. The pair I had were ok.
Sadly, the three circuits I've got for the crossover are all the same.
I've only got the one amp here, so can't just look for any differences.
I can post a link to the crossover circuit if it helps. It gets its power
from the + side of the Quad PS and regulates that down to 30 volts.
--
*A cartoonist was found dead in his home. Details are sketchy.*
Dave Plowman
London SW
To e-mail, change noise into sound.