Thanks Tom! Richard Hester is looking for a schematic diagram for that preamp! If I ever made one, I lost it. (been a while).
That tube did not have a three transistor preamp. It had an RCA MC3486 or some such IC (transistor network) and one or two discrete transistors, if I remember correctly. If you have the schematic, get in touch with Richard.
thanks,
Richard Hull
Scintillator tests
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Richard Hull
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- Real name: Richard Hull
Re: Scintillator tests
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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guest
Re: Scintillator tests
The reason I am looking for the EMI/Thorn preamp schematic is that I am trying to grt a figure for PMT output current so that I can correlate the numbers taken using Richard Hull's setup with another setup. The SCA threshold and gain settings are known, as is the voltage output of the PMT/preamp combination. The only unknown factor is the currrent to voltage conversion factor for the PMT preamp.