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"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 I

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 can

Hi Martin Please take a look on this site. He shows how to build tube/valve constructions - with lots of pictures of details and descriptions: Dr. Greg Latta's Electrical Engineering and Amateur Radio

You may have a bushing issue. Easily fixed. /g/DRAKE-RADIO/topic/94173997#67672 73 -Jim NU0C "Ron KJ7PAQ via groups.io" <ronburski@...> wrote: -- 73 -Jim NU0C

Hi: I am new to this group. I acquired some Drake equipment from the estate of a sk. Starting with the receiver (R-4C) I noticed the two plastic discs with the freq markings don't move when you turn

Glenn, thanks for the pointer. But that still leaves me in my current conundrum. I can't tell if they will work just by looking at a web page. I was hoping to hear from somebody who had already

Not sure if it has been mentioned, but I've used a variety of styles for "rubber feet" and find that glueing a small piece of felt on the bottom of each foot gives cushioning and avoids scratching

Hi Lyndon Another solution is to use supermagnets. Glue or?screw 4 supermagnet on the key plate - and 4 on the table - they and a magnetic material could all be glued or screwed into the key plate

Hi Lyndon Have a look her - there is material box e.g. "rubber, neoprene", "rubber, silicone", "silicone" - and there is a "mounting type" box e.g. "screw mount":

I connected my D104 from my Collins KWM-2 and no modulation in either LSB or USB. That mic works on the Collins fine. I did notice .15ma when I key the mic compared to .1ma with X-CW but no

Yep, you did. B-/ Barry - N4BUQ

mike bryce writes: That would work great if these weren't Vibroplex keys, with all the connections running under the base. --lyndon

Steve Wedge, W1ES/4 via groups.io writes: Funny you should mention that ... all the keys I'm having trouble with are Vibroplexen. If the current Vibroplex feet are the reference, I'm looking for

Try some of the stuff you line tool boxes with to keep the tools from moving around. and or the stuff cabinet makers use to hold wood on the worktable for sanding mike wb8vge

Vibroplex sells feet for their keys. There's no reason why they wouldn't work on other brands. I replaced the feet on my Standard Iambic a few years ago and it has been fine. I've had that key since