[ARC5] BC453 on 24V

[Jack Antonio]

On 12/10/2019 7:18 PM, Robert Eleazer wrote:

> Note that the various BC-1206 receivers all work on 28VDC B+ and 
> filament voltage, as does the R-392, and numerous tube type marker 
> beacon receivers, including the?BC-357, BC-1033,?and?R-666.

The BC-357 marker beacon receiver uses 220V for plate voltages. I
was under the misconception that it used 28V for B+, until I actually
fired one up. The manual for the SCR-269 radio compass receiver shows
that it is the source of B+ for the marker beacon.

The later and similar looking BC-1033 and its 14V brother, the
BC-1023, use filament voltage for B+. I have the manual for the
BC-1023, but not for the -1033, so can't address the differences
between the two.

Also, the R-76/ARR-13, which looks very similar to the BC-1206,
uses a "normal" B+ voltage, around 250V. Books I have show
it being used with an RCA AVT-112 and AVA-126.

A couple of other sets that use 28V B+. The AN/ARN-5 glide
slope receivers, and the receiver side of the Collins 18S4
(AKA AN/ARC-59).

Jack Antonio
WA7DIA