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My TR7 even with an NRV7 fails to lock the displayed freq when turned on. Have to cycle the on/off a few times or cycle the AUX7 switch. I have cleaned and checked all connections to the DR7 and on

*** I had a similar requirement for my KWM-2. I used a half-wave rectifier off the filament circuit, feeding a TO-92 three-terminal regulator. Which has far better ripple rejection than a zener diode.

I'll soon be installing a K4DPK VFO stabilizer in my TR-4Cw. The stabilizer works on 10-14 VDC. Since there's no low voltage in the TR-4Cw, I'm curious how others have attempted the supply voltage

Rob Sherwood writes: Rob, regarding that filter, even though the pin has broken off, it should be repairable? Assuming I can get the cover off it, it should be possible to solder in a replacement pin,

ok and thanks for the good wishes. Thought that might be the case. Blessings David Assaf III W5XU, VP8RXU

R-4C crystal calibrator is still available. Blanker sold awaiting funds. PayPal to rob@... Rob, NC0B Sent: Thursday, January 18, 2024 9:37 AM To: [email protected] Subject: Re:

Rob are? the calibrator & blanker for an R4C? I'd take thos if so. Thanks Patrick NQ2M

Hi Dave, Hope you are mending after your hospital incident. If you have my CF-600/6 and/or CF-2K/8 roofing filters, the answer is no. The list of filters are almost all 2nd IF plug-in filters I have

Rob: Good morning. Are these the filters for the Roofing filter Mod? I have the ones I received from you a couple of years bak and have selected 2 R4C radios to receive them. Hope all is well.

I measured my L-4B keying voltage at 40V. Richard Van Hoose WB6HII

Here are some filters and items available. $75.00 plus $10.00 shipping unless otherwise noted. AS IS, but if they don't work I will refund the purchase less shipping. PayPal to

All filters are $75.00 plus $10.00 USPS shipping. I’ll make a list of misc. filters I have on hand that need new homes and post it soon. PayPal to rob@...<mailto:rob@...>. (Not his

How much for the Piezo roofing filter? Gary

Hi Gary, Yes I have one Piezo Technology original first IF roofing filter on the shelf. I also have a parts R-4C that has been cannibalized, but has the power transformer and a PTO. Another more

Do you happen to have an original first IF roofing filter? Gary WoDVN

Misc. parts still in inventory at NC0B.com. However no upgrade kits now that I have retired. If anyone needs a few items to complete an R-4C project I have a few left. Plug-in filter brackets AUX

No - Fair Radio is still in business.? The owner wants to wrap it up but he is closing out stuff and looking for a buyer for the entire stockpile. They just sent out their January flyer notice...

He has and you sir, are part of that blessing. Thank you. David Assaf III W5XU, VP8RXU [email protected]> wrote:

Thank you John. It is a well appreciated response. David Assaf III W5XU, VP8RXU

will offer a mass for your recovery. Get well soon. John K5MO [email protected]> wrote: