Interesting, Radiomuseum lists it as an RCA Radio Marine product.
https://www.radiomuseum.org/r/rca_marine_crm_r5acrmr5.html

Bruce   M0SOE

On 08/02/2026 15:26, Brenda Gentry via Milsurplus wrote:

It makes me think of a solid state replacement for the RAK. 

   B. Gentry, KA2IVY

On 2/8/26 1:23 AM, Hubert Miller wrote:

What’s with this receiver ? An all transistor VLF -LF regen, way past the time when a simple regen

would have been manufactured. Or was this thing some totally homebuilt set by some nut ? But

it looks too good for that. What gives ? The freq dial looks same as the WW2 Liberty Ship regen

receiver. “ $400 or best offer”. 

-Hue Miller