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Now that I'm back at my shack, I can attest that the 70 series meter that I have is the 77. It's in excellent shape and is still holding its calibration, as far as I can tell without having a

The speed factor that I look at for DMMs is how quickly the beep reacts when doing continuity testing. The Flukes seem to be mostly pretty fast. Cheaper DMMs (yes I have some of those too) less so.

I have a WV-98C also. Love that huge meter. The other one is I think a WV-97A which is the usual form factor for VTVMs of that type. It works too but doesn't get used as much as its big

I like the 8050A a lot too.? I also like the 8842A.? Wish it had the AC option.? Seems like I've read where someone made a clone of the AC option board. For tube gear, my go to meter is the

Okay, apparently a lot of people are unfamiliar with the undercarriage on Vibroplex keys :-) See the 1st picture attached. From L-R those are the bottom sides of an Iambic, a Vibrokeyer, and a

I have a Fluke 17B (Chinese-made and for foreign markets) that I bought new on eBay a few years ago. I found the delay in getting a stable reading to be something that really bugs me. I have an old

Nice find on the Fluke 289. Even on the used market they're quite expensive. RCA WV-98C is the go-to VTVM here. Triplett made a really nice FET analog VOM, the model 603. It's roughly the same

Drake AA-10 is sold Gary W0DVN

Ralph, Sent to your QRZ e-mail address. Paul, W9AC Sent: Sunday, March 17, 2024 12:51 PM To: [email protected] Subject: Re: [DRAKE-RADIO] Dumb question of the day. I have two of

I assumed that you are getting relay closure, if you're getting idle current. A bad 12AX7 can stop things, though. If it's running really abnormally hot, look around that circuit for shorted

I have two of the 8060A but have not used them in a while.? Usually use the newer auto ranging ones .? Could you send me the file about replacing the capacitors so I will have it if my 8060 fails I

The 8050A from the same era is a nice bench meter. I love mine. If you get one with the battery option it is portable but then you have to deal with NiCad maintenance. I found a 289 dirt cheap at a

The 8060A was quite an achievement for a 1980s DMM design. After graduating from college, I worked for RKO Radio in Chicago. We depended on it for a litany of precision audio measurements.

"Museum putty" A pea-sized ball under each foot, everything firmly pressed down where you want it. My Vibroplex paddle (contacts wired together as a cootie key) stays put despite a rather

Use double sided tape to keep the keyer in place. Doug Free Climbing - The ultimate test of strength and endurance

I will clean all the tube pins and check the voltages and resistances in the tables. I also noticed the 12AX7A V17 is extremely hot, so I'll check it again - it serves as audio amp and a TX function

Yep. Needs a new bushing. The exact part is Unobtainium but you can make one from a piece of 1/4” fuel hose. Cut to the same length as the bushing and ensure the Ends are square or you’ll see the

Hmmm. Did you already say that you’ve cleaned the tube Pins and switches? Chances are that it’s not a filter, because you’re getting nothing in either sideband, and I was looking to see if one

Paul, you may already know this, but the 8060A has a special high impedance mode for DC voltage measurements. However, it only works in 2V and 200mv ranges. To put it in high impedance mode, you

How about using gecko tape?: https://en.wikipedia.org/wiki/Nano_tape Feb 25, 2008, Self-cleaning nanotechnology stickies. https://www.nanowerk.com/spotlight/spotid=4675.php Quote: "... "Our tapes