[ARC5] Heater wiring - 12V vs. 24v

[arc5 at ix.netcom.com]

In my respectful opinion- that the "28" on the nomen plate has been 
abraided away and replaced by "12" means the wiring has indeed 
been modified from its original configuration.
This is not a "bad thing," since it is likely to be an "official,"  mod, 
meaning it was done by order of the services and not a "ham hack,"  
and is thus "original" and important to document.  
The Lorenz Landing System mods to BC-455s 
are after-market as well, as were those to the 454s 
used in the glide bombs, but are important and certainly not "hacks."

Late in the war,  a lot of "second tier" powers entered the fray.
They had many 12-volt aircraft that needed "modern" equipment.
This change would have gotten some gear on the way 
until A.R.C. could tool-up for 12 volt receivers.
That would fit with the late-war contracts for 12-volts.

I'm very interested in the local control drawer 
with the yellow paint.  Any chance of seeing a photo?
What does the stamping on the inside case of 
that local control drawer say?

73 Dave S.