Harshaw Scintillator Preamp connection diagram

[guest]

I just picked up a really nice Harshaw 4"x4" NaI(Tl)
detector with PMT preamp in the tube base.
The power connector is a 5-pin blue Amphenol
type. Does anyone have a power connection
diagram for this type of PMT preamp?
Thanks...CT

[Richard Hester]

The best way to dope out this circuit is probably to open it up and take a look. A possible scenario is : +HV, GND, output, +V, and -V, or some small variation thereof. It might be a good idea also to replace the conector with something that is more available. Nothing is more frustrating than trying to find a mate for an obscure and obsolete connector.