I have the RBA, RBB, and RBC in the refurb grey paint scheme,  along with 3 power supplies.   I love those receivers!

I also have an RBB and RBC in black.   It's my intent to get them running then find good homes for the grey RBB  and RBC.

73 Mark K3MSB

On Wed, Apr 16, 2025 at 1:42 PM Thomas Adams <quixote2@ix.netcom.com> wrote:
Mike,

Ya got THAT right; these muthas are HEAVY!!!

I have an RBB and RBC here, and recently picked up (no pun intended) a slightly modified
RBA.

For this trio a new bench will have to be built, with 4" x 4" legs, and 2" x 4" frame for the top.
IMHO the top can only be 1/2" or 3/4" plywood. Want a riser on the projected bench to store
things like the bug, keyer, active audio filter, logbooks and scratchpads, etc.

One thing I find irritating about the receivers... the power supplies.

I have two supplies here, but according to the manuals the current capability is sufficient to
power ONE receiver, and under emergency conditions a second can be added temporarily.

I'm looking at a single supply that's capable of carrying the current load of all three at once.

The receivers are on the list of projects, but I've played with the RBC a good deal. Superb
CW receiver, and more than capable of decent SSB reception. VERY frequency stable, and
a decent front end noise figure.

Mr. T. W9LBB


-----Original Message-----
From: Mike Feher <n4fs@eozinc.com>
Sent: Apr 16, 2025 12:03 PM
To: 'Ken Gordon' <kgordon2006@frontier.com>, 'Milsurplus' <milsurplus@mailman.qth.net>
Subject: Re: [Milsurplus] RBB/RBC receivers...

Ken -

Even if I had the bench space I could not lift those up any more, HI. I need
to have a hamfest at my house. 73 - Mike

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
908-902-3831

-----Original Message-----
From: milsurplus-bounces@mailman.qth.net
On Behalf Of Ken Gordon
Sent: Wednesday, April 16, 2025 12:34 PM
To: Milsurplus
Subject: [Milsurplus] RBB/RBC receivers...

Many years ago, I had a pair of those with power supply which I got from
MARS.

I was extremely impressed by both receivers, but especially by the RBB.

I used it for several years, mainly for CW net traffic handling.

My transmitter that time was either a brand-new T-350-XM or a somewhat
modified BC-610 being driven by my upgraded DX-35/VF-1 combo.

I operated full break-in using separate receiving and transmitting antennas.

Among other things, the limiter in the RBB was superb: even at 1 kW input to
the transmitter, in net operations, my own signal in the receiver was never
any louder than the signal of the station I was listening to.

A fellow ham visited my shack one day while I was operating and was amazed.

I wish I had the bench space here to set up a pair of those again.

Ken W7EKB
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