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Hi all, been reading through the posts in hopes I may latch on to some insight as to what might be afflicting my old HP 8648C sig gen. Used very occasionally to test and calibrate amateur radio gear,

A small batch of the new A15 boards finally arrived and I had to populate and test one immediately. Having upgraded the design with a better voltage reference REF102 and a zero-drift OP-Amp it seems

The manuals are sold. Thanks for the interest!

The manual is sold. Thanks for the interest!

The manual is sold. Thanks for the interest!

Me, personally, I always enjoy doing lots of extra keystrokes and effort, to fix something that is not really a problem. Word Processors often have non breaking spaces, but does your email editor, or

It plays for me.

You're delusional.? I said nothing of the sort, just remembered seeing this "kluge", as you call it, some time ago and thought I'd mention it here.? If you watch the video, you'll see that it does

I have managed to find links to several pdfs of the 35660a service manual but it appears none of them are complete? Including the one from Keysight? I.e. Section VII Assembly Level ? Section VII

From: Richard Merifield <mailto:coitboy2000@...?subject=Re:%20HP35660a%20DSA%20screen%20rolling%20issue> Date: Sun, 09 Jan 2022 03:32:31 PST Thanks Dave, can this drift with time ? Or does it

Yeah, it would be helpful to compare the EEPROM image from two units. Though I was thinking more about the actual firmware that runs on the mainframe, I could reverse engineer that and figure it out.

This started me thinking about the availability of a CRT for the 141T. I am surprised to see that the availability of them seems to have dried up on that popular auction site and elsewhere. Several

The link works for me….. -Dale

Says the video does not existent - check the link please ! Quoting Jim Allyn - N7JA <jim@...>:

Okay, I learned something here. What a beautiful solution!

Confirm receipt on Cosmo Communicator with AirMail I wonder what will be the oddest hardware from which we get a report

Confirm correct receipt on iPad-6 in Gmail. I also use alt-0-nnn on my PC; the iPad has a “shift” key for selection of alternate alphabets. I keep Greek and Cyrillic alphabets handy and many

Ok, it seems we have demonstrated this ALT+nnnn method of entering symbols and special characters works and the result appears correctly in email readers.And, this is done from an ASCII keyboard... no

Confirm visibility of all symbols on Thunderbird, running on Ubuntu 20.04LTS - - - - - With best regards Tam HANNA Enjoy electronics? Join 13500 followers by visiting the Crazy Electronics Lab at

WB4IUY... not that it matters maybe... but I'm assuming its a 141T frame with SA plugins? Do you have a variable persistence CRT?