My method has been 91% isopropyl alcohol, using a long bristle, very soft brush for working the liquid down between the vanes. I don't worry too much about washing out the bearing grease as I prefer

I will (eventually) put a large two section variable cap, with three to one gear drive, in my ultrasonic cleaner and see what happens. It was new old stock, so it isn't decades old and covered with

Thanks Jay! I don't think I ever used DeOxit without a 91-99% wash afterward because of residue. However, it seemed that DeOxit might do a better job of removing oxidation if used first. The alcohol

De-Ox-It is not the best way to clean dirty cap plates...it is a contact cleaner/enhancer designed to improve conductivity between two metal parts. I have successfully cleaned caps in vintage radios

It would be good to prevent the oxidisation in the first place. This would need a hermetically sealed environment with a desiccant but getting a device that needs manual operation into a sealed box

As far as expensive, yes DeOxit isn't cheap, but then it doesn't look like you need to buy a new capacitor at $20-$60 either and can refresh existing ones multiple times, instead of replacing. Alcohol

Hi Steve and all! I first tried DeOxit D5, with a spray alcohol rinse afterwards and lastly spray air to dry off the residue. I have also tried spray alcohol by itself, which seemed to work fine by

Now we need to find the least expensive method of cleaning variable caps not requiring (very) expensive DeOxit spray cleaner. Would cheap drugstore isopropyl alcohol work well enough? Maybe

An extremely enlightening discussion. It reminds me of customers trading in gear who handed over a box with nicotine stained fingers and you just dreaded taking the kit out. White lettering turned

Great posts and some interesting thoughts on the difference that time and use has on these. I keep mine very well protected.

Thanks Steve (and Dave), The possibility that the "Q" of older variable caps degrades over time because of environmental factors is interesting, and I appreciate your experimentation regarding this.

I received my Mike's Electronics latest version of the Oren Elliot-manufactured latest version "0219" N50-384P variable cap with vernier today. There is a way to test the relative Q of

My constant search for a radio carry case has continued... With my focus on Ultralight radio DXing, my radio kit has changed, a couple of radios have been removed and I was finding my previous case

Date: 9/07/2020 Time: 8:00 Location: St Georges Square, Launceston Tasmania Notes: A portable morning session using my AR-1780 and 3” FSL aerial. Some excellent signals on the Victorian 50kw big

Date: 8/07/2020 Time: 19:00 Location: Home, Launceston Tasmania Notes: A session at home using my AR-1780 and 3” FSL aerial.

Thanks again Gary, Those 140mm rods look great! Don't know how I missed them. Ordered 40 of them this morning. They cost only about $32 Canadian more than 30 of the 125mm rods I was considering

Op 8/07/2020 om 12:54 schreef Paul Blundell: The buttons of the XHDATA D-808 are exactly the same! Marc -- The "Penguin" has arrived - and he's not going away - ever. For former Apple users:

The AR-1780 is the big brother of the AR-1733 which has been my go-to ultralight DXing radio for a number of years. The AR-1780 covers the AM and FM broadcast bands along with the shortwave, long wave

On Tue, Jul 7, 2020 at 12:19 PM, Gord Seifert wrote: I just looked on Mike's site and can not find a part with any reference to Oren Elliot. I do see this..

DeOxit is not cheap here either! We use it here mostly for scratchy pots, with the F5 formula having more lubricant compared to the D5 formula. They both remove corrosion and protect the contact