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Usually the 1 pps comes from the 10 MHz (or some higher reference) but they are both common. Tom

If I understand correctly, the 20nS spec. of the 1ppS signal is relative to time, not frequency, in other words, it means that the 1 ppS pulse is within 20nS of GPS (I think) time once the delays are

After seeing this post, I looked into the specs of various GPS receivers. I note that the Thunderbolt is rated at 1 part in 10^12 accuracy with respect to the 10 MHz signal that it produces - can't

I have no clue. They are in a bin marked something like "5V T-1" and when tested were more like 75mA instead of 60mA. The place is Gateway Electronics near St. Louis but they do not have them listed

The Mouser lamps are rated for 100k hours. What are the ones you found rated for? Tom

For the 5 volt T-1 lamps Tektronix used for their illuminated switches, these are what I was going to order until I found a less expensive supply of them at a local electronics store:

Thanks for your suggestions. I will check them and post back as soon as I have a chance (probably later tonight). I can't believe how much time I'm spending on this plug in, but it's so close to

It would be nice if EVERYBODY?would ALWAYS remember to include their location in their "have" listings. It's a little frustrating for us stateside folks; a lot more so for people in Europe. 73 Jim

pdf page 26, calibration steps j and k. Albert

(continued) Hi Andy, I think I addressed your last message also, actually I saw too late that I replied to a new message from you. Albert

There's a HK based ebay seller who does a Micro Crystal OXCO in a 14 DIP package, see item #310380778466 - just over $25. I put one of these in a 1991 that had a faulty TCXO and it seems pretty good.

5030 Dual Beam Scope Instruction Manual in Excellent condition - Free to a good home All you pay is for the package and the shipping cost to CONUS only. Contact me off list please Chris HJ

Hi Andy, My previous comments need correction. I did measurements now in my 7904A and in this 'scope the whole trace intensity was influenced by the plugin's pot. Then I saw and remembered a jumper

Hi, I have two type 453 scopes for sale both do not work but are good for parts. I asking $35 for each one and actual shipping. pics avalable on request thanks Jon

I guess we are lucky he understed the qunatity. The 556 uses 17 6DJ8 tubes, not 12. It went fast - hopefully to someone who appreaciated it as a scope. Too bad I did not see it in time - I have a good

Bummer.? How about using one of these: http://www.ebay.com/itm/HP-8445B-Automatic-Preselector-/280977359914?pt=LH_DefaultDomain_0&hash=item416b8e442a (no connection to seller - just an example of a

Hi Albert, It's good to know the intensity problem may not be significant. I'll ignore it for now. I tried what you suggested, and discovered that the delayed trigger has other problems. The delayed

Sorry, Morris, I didn't notice where you were. Carry on. Dave Wise

Hi Albert, I have traced the signal from the delay multiplier all the way to Q948 and beyond. It does have an effect on the signal at tunnel diode CR950, but with nothing to compare it to, I don't

a instrument And that is right on both counts. They are useable, but are pre-YIG, so are beset by spurs and images. You need to keep your wits about you when interpreting the display. Craig