On Fri, 26 Aug 2011 08:59:20 -0400, Curt Nixon wrote: > In my IC 751, which >have used in the FMT's, I simply placed a small styrofoam "box" around >the ref crystal.
I've got a DigiMax freq counter with an "oven". Now, DigiMax counters weren't the greatest, they were made to be cheap - I wouldn't have paid real money for one when they were new, but I got this one in a lot of auction stuff. The oven one is a hollowed out block of styrofoam glued to the PCB over the oscillator circuit, a resistor and a small IC temp controller. Cheap, but it works. >I'm sure some insulation would help the TR-7. Probably would, but there isn't a lot of room in the card cage and around that 40 MHz oscillator. It would be some very thin insulation. 73, -Jim (interleaved) -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
