Sounds like they are set up for pulse counting, witrh the last few dynodes bypasses by caps.
-John ================== > Thanks for all the help guys. I have enough info now to utilize any > of these PMTs. The "/SQ" and "/SN1" suffixes apparently are custom > connection versions of the basic parts. These have small circuit > boards soldered to leads that are welded to the tube pins, to adapt > for hookup with in-line square pin connectors. All I have to do is > figure out which square pin goes to which tube pin - easy since it's > wide open. There are a few SMT resistors and bypass caps that appear > to be preset bias for some part of the dynode string, a high voltage > bypass cap, and an anode termination and SMB connector for the output > - again, all simple stuff that's easy to figure out or modify. > > I know what you mean by trying to decipher the addresses for > documents within websites - I have found that too sometimes - by > guessing or deducing it's sometimes possible to find good info buried > in obscure places. > > I have joined the Geiger group - very interesting stuff. > > Ed > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
