[Milsurplus] RBC

[Meir WF2U]

I love my RBA/RBB/RBC triplets. The RBA gets less use, but it hears the LF beacons and some 600 m experimental station activity. There is nothing that my only modern transceiver hears on the 75/80 and 40m bandsm that the RBC doesn't hear, and in most cases hears better. I don't find any reason whatsoever to mess with them and add a product detector or digital frequency counter. I don't use these receivers for SSB, and don't use them to measure frequency. The dial resolution is good enough to find a station and zero-beat with it with the transmitter either on AM or CW.

Meir WF2
Landrum, SC

On June 15, 2016 11:30:41 PM EDT, Hubert Miller <kargo_cult at msn.com> wrote:
>Sorting out manuals today, i couldn't resist taking a look at the RBB/
>RBC
>Prelim Manual. This looks like a pretty
>
>impressive receiver. The mixer tube is actually one of the lower noise
>tubes
>today. The selectivity according to 
>
>the manual, sounds to be good, altho the prelim manual has no spec for
>this.
>Does the final edition of the manual
>
>give this, and if so, what are those?
>
>I'm thinking an outboard freq counter would bring this box up to speed
>and
>it would be a fine AM-CW DX machine.
>
>Maybe a plug-in product detector somewhere. 
>
>I wonder if a limiting factor is the 6SK7 in the RF stage. Maybe a
>cascode
>plug-in adapter would help; maybe not.
>
>I am VERY impressed by a receiver having a 5-gang tuning capacitor with
>4
>tuned stages ahead of the mixer.
>
>Amazing. Never seen such on any other receive i am familiar with.  
>
>But the limiting factor for me is unfortunately, the size. I'd have to
>look
>around for several other boxes to jettison
>
>to be able to have an RBC, and then if really liked it, i'd have to
>have at
>least another. 
>However, after checking out the manual, i'll definitely take a longer
>look
>at the next one i see at the hamfests.
>
>-Hue 
>
>
>
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