[MRCA] RBB, RBC, and Power Supply

[Mark K3MSB]

Decided to have some fun this morning.

The RBC is working great on 14 CW

https://www.k3msb.com/temp/RBC_14CW.mp4

Could only hear FT-8 on 17M and 21M (strong signals).

The radio will not cover 10M,  but here's some 11M "stuff".....

https://www.k3msb.com/temp/RBC_11M.mp4

Here's the pair that will be replacing the ones I'm selling:

[image: image.png]

They are both "first editions" -- contract NOs-73056 from 13 April 1940.
They are complete, and I look forward to getting them working.

73 Mark K3MSB


On Mon, Jul 27, 2026 at 8:00 PM Mark K3MSB <mark.k3msb at gmail.com> wrote:

>
> I'm selling my RBB and RBC receivers and power supply.
>
> [image: image.png]
>
> Here are some videos I shot tonight showing them "In action".
>
> https://www.k3msb.com/temp/RBB_1.mp4
>
> https://www.k3msb.com/temp/RBC_1.mp4
>
> https://www.k3msb.com/temp/RBC_2.mp4
>
> Couldn't find an CW on 80M..... but I've used it a lot on 80 CW in the
> winter months.
>
> I've used these radios for several years and it's time to find them a new
> home.
>
> Price is $180 for all 3 units.
>
> Pick up only.   Will have them at the Berryville VA hamfest on Sunday Aug
> 2nd.
>
> All three units are sold as is.  They work well enough for casual
> enjoyment on CW, SSB, and SWL, but I'm not sure everything is 100%
> functional according to spec.
>
> Reason for selling:   I have an early model all black RBB and and early
> model all black RBC that will be taking their place.
>
> 73 Mark K3MSB
>
>
>
>
>
>
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