[AZ-Observing] Re: Astroman Site

For anyone interested in building their own PMT photometer, the Surplus Shed
(http://www.surplusshed.com) has a supply of IP28 photomultiplier tubes
(http://www.surplusshed.com/pages/item/r1435.html), $10.  I bet they'd even
cut you a deal if you bought a dozen.  It seem to remember that this tube is
similarly numbered to one in Jeff's book, although I don't have the book
handy to check.  Of course, if you know about tubes, you know that similar
numbers don't mean similar performance, so check your handy PMT data book.

I have purchased from Surplus Shed a couple of times and am satisfied with
their service.

Joe

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