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Michael, Vasoline works for me. So does light oil (sewing machine type oil). What is critical is the "squeeze" of the tabs around the edge. 73, Gary WB6OGD

No, they are smaller and slightly different frequency. 73, Gary WB6OGD

Hi All. I am in a quest to find an Old Beginning Electronics book that I used to read. I found said book at a wonderful LA County Library back in early/middle 80's (I checked that sucker out more than

Hello all, I’m having issue with the RV-4 when using it with my TR-4. In the off position, I can still hear the signals that the RV-4 is tuned to even though it’s off. ?Also when I transmit CW,

After adding the FS-4B (tnx to WB6OGD and VE3FWF) to my SPR-4, I've got this left over from the mod...if you can use them, they are yours Jim AB7VF [image: 1000000594.jpg]

How does Vaseline perform? (Maybe only known in the UK.) My R4-B is ok at present, but... Michael 2E0IHW

Does the SPR-4 use the "same" crystals as the other Drake (R-4x, 2-x)? receivers? I think "AF4K" crystals has them for all the Drakes.

I have some crystals here. I collect them and trade them and sell them ect as a hobby more than a business. Get in contact with me off the list and i can look over my database for u. 73 earl

One of the option is to use ProgRock2 instead of crystal. Used them for Kenwood TS-520 https://qrp-labs.com/progrock2.html Arthur, VE3EUT

Tom Smith writes: There are several currently listed on fleaBay. Search for 'drake spr4 crystal.' This one seems to cover all the bases, although there are others selling ham band xtals for less:

Thank you, Tony. ?I’ll check it out. 73, Michael, N4KZO

I might have a 17m crystal. Contact me off list and I’ll check on Monday. Rob, NC0B Sent: Saturday, January 27, 2024 6:23 AM To: [email protected] Subject: [DRAKE-RADIO] Crystals Where can I

We all have our opinions but consider using only newer synthetic grease. For mechanical PTO and VFO rebuilds, I’m using Mobile1 and Valvoline SynPower brands. Petroleum axle and lithium-based grease

On that topic, "older style" dielectric grease for distributors is sold in small quantities while spark plug boot release is sold in larger quantities and is less expensive. On Saturday, January 27,

Dielectric grease, like made by Permatex? should work....sold in any auto parts store, etc.? That stuff will handle extremes in temp.

Where can I find crystals for my SPR-4 receiver? I’m not hopeful that I can find a commercial source. I need a few for the more common ham related frequencies and 1 or two for the WWV ranges. Thanks

Thanks for all of the comments on the vernier drive. I plan to replace the vernier drive soon. Hopefully the slightly longer leads on the neon panel lamps I recently replace will allow me to rotate

When it comes to lubricating parts in electronic equipment, I've always believed in a very small amount of lubricant and if that doesn't work, I try another small amount but typically only one

I had forgotten about the difference until recently, when I fitted one of my spares into an R-4B. The pointer was way off. I tried another one (they do look a little different from each other) that

Really?? Comparing my B line, they seem the same.? The T-4XB does have the 160m section spread out lower but that is the tuned circuits, no? I do have to tear out the vernier in my R-4B again.?