13-09-2020, 08:37 AM
Loft ladder was ascended and valve inspected 
Valve brand is a Mazda, though it has a four way pinch and etched production number on the base, (28, Phillips signifying PCL83, + factory code for Mullard), so bought in by Mazda?
Looking through other subsequent models of Murphy record players, and the A1 and A2 Amplifiers, it does seem that at least Murphy were happy to continue using the amplifier design with its odd choice of a TV frame output valve, without change.
Valve brand is a Mazda, though it has a four way pinch and etched production number on the base, (28, Phillips signifying PCL83, + factory code for Mullard), so bought in by Mazda?
Looking through other subsequent models of Murphy record players, and the A1 and A2 Amplifiers, it does seem that at least Murphy were happy to continue using the amplifier design with its odd choice of a TV frame output valve, without change.
