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Discussion of precise time and frequency measurement

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OT: Need datasheets on photomultiplier tubes

EB
ed breya
Thu, Jan 12, 2012 3:12 PM

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

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
JF
J. Forster
Thu, Jan 12, 2012 5:01 PM

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


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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 -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >