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Right-Oh DC > AC > DC I'm kind of like my dog... Sniff > Visual > Locate... bury the bone

Hi Michael, did you check the addendums / change notes section of your manual already? These instruments obviously underwent a lot of changes in the beginning. For the 851A alone, I have a 1/2" stack

"Human senses first"...take a look at where the leads exit those capacitors, look for some light charring or darkening around the leads. Target those first. Yes, something caused that fuse to blow.

Dave that's spot on my next move. I need to get a schematic to work from rather than going in blind. I have a ESR meter that can read with some considerations ESR, etc in-circuit. I will make readings

Nada on a 33A or 34A from me.

Hi Wilko, I purchased the keyboard (therefore no longer in the ad), which contains 51 Bill West switches. It proved in very good condition and it was packed with great care. I hope others will be

Just stumbled on this advert. Mind you, I am not the seller nor do I know him. Prices are in € and the parts are in the Netherlands.

Jared You can pull it from the front or back. They come from the same circuit. Your simply looking to see if teh 5 MHz is off in open loop mode. If its more then 1 Hz I will believe thats trouble. You

Got that Dave... makes sense and availability is probably nil... will replace with 2 leg varieties...TNX Gene/K7QHO Sent from my T-Mobile 5G Device Get Outlook for Android<https://aka.ms/AAb9ysg>

I don't recall whether the third lead is isolated or not, but I replace them with two-leaded capacitors. As far as I can tell, that was just HP being overly anal-retentive about immobilization of the

Thanks Dave, What's the story on the dual caps? Regards Gene Sent from my T-Mobile 5G Device Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ Sent: Monday, November 22,

Here is a Mouser list I use: Mfr.: KEMET Mfr. #: A759MU277M1VAAE022 Mouser #: 80-A759MU277M1VAAE22 Desc.: Aluminum Organic Polymer Capacitors 35V 270uF 20% ESR=22mOhms RoHS Compliant 20 20 Ships Now

Not sure of the circuit - I would pull it from a place you are sure drives the Ghz synthesizer - OXO mist likely Quoting "Jared Cabot via groups.io" <jaredcabot@...>:

I have the Leo Bodnar GPS standard to compare against, should I pull the 5MHz from the front or rear panel of the 5065A, or directly from the OCXO module?

I too have a '532A that I'd like to re-home for a nominal sum, if anyone is interested. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

If you have a '34 (that he doesn't buy) I'm interested Quoting "Precaud via groups.io" <jbau@...>:

Gene, seriously, check those capacitors on the power supply board. This is not just an occasional problem; seriously, 3/4ths of the 70900s that have gone through here have had that failure. -Dave --

I have a 16532A if that willl work for you. Will have to look to see if I have any 33's or 34's left.

Yes, I'll do that, thanks Bruce I just order the band 0 amplifier, a working and tested unit from eBay located in NJ. When it arrives, I'll redo several test and see the behavoir of the unit before

VFD? A search shows Variable Frequency Drive but since I have played with Nixies and Numitrons maybe it is Vacuum Fluorescent Display. I wish people would define the first instance of an acronym. Some