Aha! Once again, Google is your friend -- http://www.slack.com/images/TE/EfratomPTB-100.jpg
shows the Efratom Rubidium module, and it's a double-width unit. That gives plenty of room to mount the module horizontally, and plenty of room above and below for fins and fans. When I get my time machine working, one of the things I want to go back and stock up on are Tek 5xx prototyping kits. The single-width kits are rare enough these days (and expensive), but the double-width ones are pure unobtanium! Bob K6RTM On Sep 16, 2010, at 2:51 AM, [email protected] wrote: > I got one of the ebay LPRO-101s about 6 months ago and played with it for a > while, but had problems maintaining a lock. First of all, it has a heat sink > bolted to the bottom that is just a little larger than the LPRO itself, > including being about 1.25" thick( 1" fins). Typical frequency when locked is > 10,000,000.007 on a 5360A clocked by a Z3801A. > > > Both then and now, it takes about 45 seconds to lock from cold, and will stay > locked for about 45 minutes. I found that in the position with the heat sink > on the bottom will stay locked the longest (up to a few days), but then it > becomes intermittent. Other positions will lock for a while, but bottom down > always works the longest. > > > For those of you who employed these in TM5xx or similar plugins, did you have > lock issues? Is my unit just old? > > > Dave _______________________________________________ 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.
