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If you are OK for RS-232 serial protocol, there is this: https://www.omniinstruments.co.uk/handywave-hps-120-radio-modem.html and

You do. Only section 1 required, just 10 pages. EJP

EJP, I discovered that 100mV/div agreed with when using a timebase in a horizontal slot and presumed that was correct but I really need to READ THE MANUAL! :) Thanks, Barry - N4BUQ

Yes. See manual p.1-8. beta = VERTICAL AMPS per DIV/STEP AMPL. No. You are supposed to set the vertical amplifier to 100mV/div, and then control everything else on the 7CT1N. See manual

There is a seller on Yahoo Auctions here in Japan currently selling a new-in-pack spare cable (part number 174-1081-04) for 6500yen (about US$50) including local shipping. I purchased one from them

Thank you Max, I will indeed revisit the 6BL8. I checked all the tubes and they seemed fine on my Philco 7052 (which is a re-badged Hickok 533A). However, it may have been marginal. Too, I have ran

Up at the farm this weekend I discovered that the water pump had been running all the time for who knows how long, overflowing the storage tank and wasting electricity. Normally, the level is

Thanks, Tom!

Thanks, and good points — I’ll keep my eye out for better probes in original condition.

Thanks Michael, I will email you as needed, and will update the post as well. Thank you very much for everything. Best Regards, Stephen

Stephen, Getting the vertical board out to access the HV Multiplier is really not that bad. I have had several 465's apart in the past few months to replace the probe coding lamps. Take pictures of

Yup

Thanks, Ross. I'll check that out as well. Thanks, Barry - N4BUQ

Jeff, I placed an extremely low offer but it expired without response. That might have been a product, though, of the holiday. In reality, I think I would have felt bad to get that merely to rob

David: I have used and collected TEK probes for decades My favorites are indeed P6137 and P6136, for 10X and Zo. 1/ With great patience its possible to locate mint perfect probes in original TEK

Hi Barry, Another good reference for using a Curve Tracer is: Tektronix Measurement Concepts Tektronix - Semiconductor Device Measurement - 1970 (062-1009-00) It's available on the TekWiki

Michael, I was hoping to avoid it, but I guess I’m gonna have to make use of one of those HV enclosures after all. I’m already dreading taking apart those boards… Best Regards, Stephen

Stephen, Yes, the HV multiplier is dead (i.e "shorted"). I did not recognize that "wire" sticking up vertically as a jumper. Should have know that was the end of the jumper. -- Michael

CORRECTION: the part number in the eBay listing is actually for the white socket side covers. I'm not sure what the part numer of the main interface board is (it's not shown in the pictures. There are

I uploaded a photo of the badge on my 2465 at /g/TekScopes/album?id=275497 It's pretty good and could be made better with a little touch up using a photo editing