[Milsurplus] SCR-183 question

[Kargokult@aol.com]

<< 
 I think coilsets were matched to individual receivers, and they were not 
 supposed to stray. William Donzelli  aw288@osfn.org >>

--However, in actual practice, it mattered not at all, anyway, right?
I mean, how much is selectivity affected, when you have 4 LC 
circuits at 3105 or 4495 ?
Accuracy of dial calibration: What dial calibration?
Probably the same holds for RU series: the 12 and 24 volt sets
have different marked coils, but the coils are all interchangable.
But now 3 tuned circuits selectivity. As for calibration of the
dial for operation under CW, with CW osc on, still no problem:
there's essentially no dial resolution anyway, and moreover,
you used the LM to set to frequency, either in the air or on the
flight deck. 
Re the recent auction appearance of an ARB dustcover, i note that
it does not provide for a ZB / ARR-1 to be mounted atop the ARB.
I don't quite get that, since i've seen even less sign that any such
expanded dustcover existed. A cover did exist for the ARR-1 / ZB.
( In fact, i have several, which i want to hand out this summer, to
requestors.) Oh, yes, i sorta don't think the ZB cover was for
"security", as factory and Navy photographs show this VHF 
navig adaptor right there in full view.
BTW, my rationale for avoiding owning dynamotors for aircraft 
sets, besides the fact that i hate them and can't maintain them:
i've seen what i call "local unit manufacture" power supplies and
other odds & ends that never made it to any manual ( oh- i take 
that back - i do have a manual for an RU/GF  ACPS ), i mean 
never made it to any catalog, but were built for bench setups
for testing. So there existed non-nomenclatured, unofficial AC
supplies - like the ones i want to build.
Regards, Hue Miller