[time-nuts] precision timing pulse

I'm building a laboratory scintillation counter that uses my HP 5335a counter as a read-out. The FREQ mode gives only approximate results (maximum gate time is about 5 seconds). The TOT mode counts pulses for an arbitrary time that can be set using the "external arm input" on the rear panel

[time-nuts] Piezo ocxo

A few years ago I built a GPSDO using a Jupiter T and a Piezo Crystal Co. model 2920136 OCXO. Not having the equipment to test it I have always wondered about the quality of the 2920136. Anyone have any experience with it? Thanks for your help. Chuck ___

[time-nuts] Charles Wenzel GPSDO

I have been waiting for Charles Wenzel to get around to designing and building a GPSDO. Well, he has done it now and you can see it at . Any thoughts on the design relative to more conventional ones?? Chuck Burch _

[time-nuts] 15 v power supplies

I have acquired a number of used Philips PE 1251 15 volt dc, 2 amp power supplies. They are high quality (over-engineered), 8" wide, 3.5" tall, 2.5" deep and weigh 3.6 lbs. Output ripple plus noise is <= 0.1 millivolt. I am making these available to fellow time nuts for $10 each plus at-co

[time-nuts] 15 v power supplies

: Chuck / Judy Burch To: time-nuts@febo.com I have acquired a number of used Philips PE 1251 15 volt dc, 2 amp power supplies. They are high quality (over-engineered), 8" wide, 3.5" tall, 2.5" deep and weigh 3.6 lbs. Output ripple plus noise is <= 0.1 millivolt.