[Milsurplus] RAK AND RAL RAB landed at SMECC anyone got a good link list?

[Richard]

The RBL is an excellent receiver, as good as the RAK, and has the 
advantage of a calibrated dial.  Mine was never in service, and all the 
mica capacitors were shorted or arcing.  The power supply is internal .  
A good find.

The RAK/RAL power supply has a design defect in that some voltage 
dropping resistors are nestled underneath a fiber board with no air 
circulation, and are always shot.  Also they put too much current 
through the 884 regulator as it's only regulating a half-mill load. It's 
easy to make a power supply - I've gone both ways, and it may have been 
less work to make a new one.

Richard, AA1P

On 07/21/2016 09:42 PM, COURYHOUSE at aol.com wrote:
> Hello to all!!!  Oh WOW!   this is  good new band!  Can we run RTTY on 
> that band?
> OK looked at receivers -   I was wrong on the rXX nomenclature on 
> one.... We are still happy as they go to 15 KHz
> #1 - CND-46155 part of rak-7    made by RCA  !   Yes! seems to have 
> power supply, however, the cord is shot. sn 1563
> #2 RBL-3  sn 363  (weird looks like flat  national knobs but made by 
> Wells Gardner. has interesting
> CHICAGO ILLINOIS  with a decorative thick walled circle  on the 2 knob 
> escutcheon   on top right side knobs. Neat indeed.
> My wild  guess it was  used in  Chicago Navy radio school maybe 
> touched by  hands of Captain   Eddy? <grin> (would sent pic but do not 
> think the reflector likes it?)
> #3 some   national  dog house style  power supply  It is not in 
> grabbing distance at moment.  perhaps is for the National knobed  but 
> made by Wells Gardner RBL-3?
> Sorry  Hue  and  Brian, it was not that rare  one ... I had my letters 
> mixed.  That one would have been great to have  too!
> I like these they were a contribution to the museum project here.
> I was looking  for the low  freq  companion for the RBM HF I have but 
> these  are cool... and we always seem to get things offered from back 
> east  thus  the RAK shipping would be a KILLER!
> This was a drive   down the street.....
> Ed Sharpe archivist  for SMECC
> In a message dated 7/21/2016 3:40:56 P.M. US Mountain Standard Time, 
> kk5f at earthlink.net writes:
>
>     Richard wrote:
>
>     > ...we are momentarily expecting a new ham band 402 to 409 kc.
>
>     That will be 472 to 479 kHz, 630 meters.
>
>     > (I have a TBW ready to go)
>
>     My best VLF/LF/MF receiver is a R-1134B/WRR-3 (14 to 600 kHz, all
>     vacuum tubes).  That's the same model that was on almost all USN
>     surface vessels in the 1960s to 1980s that was used for, among
>     other things, keeping watch on 500 kHz.  We had one on board
>     SSBN-629, although submarines were not required to watch 500
>     kHz...and it was not used for the normal submarine VLF reception.
>
>     I have a T-588/ART-33 that was used on some USCG aircraft to
>     provide MF Morse maritime band transmission.  It is
>     crystal-controlled for all the standard merchant vessel MF Morse
>     channels from 410 to 535 kHz.  It is local control only, probably
>     about 40 watts output, 400 Hz AC power (unfortunately).  It uses a
>     remote-operated trailing-wire antenna.  I don't know what receiver
>     the USCG used with the AN/ART-33.  They could have done reasonably
>     well with a R-23A/ARC-5.  Before I found the AN/ART-33, I was
>     unaware that any USCG aircraft had MF Morse capability.
>
>     I preferred listening to the maritime MF Morse band more than to
>     any other frequency segment.  I miss it greatly...especially 500
>     kHz at night.
>
>     Mike / KK5F
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