THIS LISTING IS FOR 2X PPM BOXES. GOOD WORKING ORDER. USED CONDITION. ONE OF THE KNOBS IS MISSING FROM ONE OF THE UNITS. FUNCTION ITSELF WORKS FINE, JUST A LITTLE STIFF. COSMETICALLY SOME RUBS / MARKS / SIGNS OF USE. A LITTLE CHIP ON THE SIDE OF ONE CASE. CONSULT PHOTOS FOR EXACT ITEMS YOU WILL RECEIVE. THIS LISTING IS FOR BOTH UNITS.
The Canford 57-913 Twin PPM is a free standing PPM meter with two I/O's, switchable M level, and peak LED meters. The peak programme meter (PPM) indicates not average levels, but peaks. It is widely used to establish correct transmission levels and for equipment line up. It takes the form of a moving coil milliameter with an approximately linear scale, and is designed for use with an appropriate driver circuit to give a fast response and slow fall time, with the drive circuit PCB mounted directly onto the studs on the back of the meter. All Sifam PPM’s have taut band movements (ligament suspended), which is extremely robust and shock proof. All types as standard have the BBC 1-7 scale.