[Milsurplus] Knobs used in RBA/RBB/RBC receivers

[Al Klase]

Mike,

As far as I know the "RCA knob" was a patented design, and they touted 
them as be anatomically correct etc., etc,. I doubt that RCA actually 
manufactured the knobs themselves. I also doubt that anybody made 
unauthorized copies.

That said, the knob I just pulled off my rather original AR-88 receiver, 
from the 1940's, bears the logo "MIC" in a circle. I also have a bag of 
RCA knobs from a silent key that I am hoarding carefully. A couple of 
these say MIC, while the majority say VIZ. VIZ Corporation in 
Philadelphia inhereted the RCA test equipment line, VTVM's, etc. as the 
parent company was winding down, but I don't know a lot about them.

I'd suggest that if it looks like an RCA knob, it is an RCA knob.

Al

Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

On 11/1/2014 5:25 PM, Mike T via Milsurplus wrote:
> Hello,
>
> I have come to learn that the RBA/RBB/RBC series of receivers used RCA/Viz control knobs that were also used in many RCA consoles. It also seems that at least a few other companies have made copies of these knobs as well. My first question is how is one able to differentiate between a genuine RCA knob and a copy and my second question is where would be a good place to find a few RCA knobs?
>
> Thank you,
>
> - Mike
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