The Model 276L provides two outputs: the preamplifier output for energy analysis and the anode output for either timing or auxiliary energy analysis. The preamplifier is dc-coupled to simplify pole-zero cancellation in the main amplifier. A Test input accepts the output of a pulse generator to calibrate and test the preamplifier and the system. The Model 276L has a diode protection network to prevent damage to the internal transistors due to sudden application or removal of high voltage to the unit. The Model 276L is powered from any ORTEC
main amplifier or
preamplifier power supply.
The Model 276L is directly compatible with many commercially available integrated Nal-PMT assemblies. Also, the Model 276L is directly compatible with 10-stage PMTs that fit standard 14-pin sockets.