Re: [time-nuts] HP Z3801a piezo oscillator does work

2016-12-18 Thread paul swed
Bob I think Mark was suggesting that. As I explained its a odd package. Regards Paul WB8TSL On Sun, Dec 18, 2016 at 7:13 PM, Bob Camp wrote: > Hi > > Can you pull the crystal? sure. > > Does your MV-89 have a 5 MHz crystal (the frequency doubled version) or a > 10 MHz crystal? (sub harmonics vie

Re: [time-nuts] HP Z3801a piezo oscillator does work

2016-12-18 Thread Bob Camp
Hi Can you pull the crystal? sure. Does your MV-89 have a 5 MHz crystal (the frequency doubled version) or a 10 MHz crystal? (sub harmonics viewed on a spectrum analyzer are a really good way to tell). Is the crystal the same size / pinout? Probably not. HP used an odd package. You might be

Re: [time-nuts] HP Z3801a piezo oscillator does work

2016-12-18 Thread paul swed
Mark I tend to agree with you on Bob. But that said the 10811 crystal is a bit odd. Its actually a copper cylinder with a screw on top. I believe to insure correct even heat distribution. There are pix's of it on one of the sights. Maybe the crystal comes out of the copper. The 10811 used in the Z3

[time-nuts] HP Z3801a piezo oscillator does work

2016-12-18 Thread Mark Sims
I have a wonky Morian MV-89... probably the well know output cap failure. I wonder if one could pull the crystal out of that and stick in the HP10811? Something tells me Bob would know ;-) ___ time-nuts mailing list -- time-nuts@febo.com To unsubscr

[time-nuts] HP Z3801a piezo oscillator does work

2016-12-18 Thread paul swed
OK the 10 MHz Piezo oscillator from a lucent RC/xtal pair does work and the 3801 is doing what it should. Some insights as mentioned. 3801 DAC being full scale is not an issue when a good signal within 2 HZ is used it will come out of limit. The DAC output was driving the piezo far to widely I ad