[Milsurplus] WWI spark transmitter

[William Donzelli]

> BC-15-A sets, in other words.  Not real rare, yet not cheap either.
> 
> I have a BC-14-A crystal set (SCR-54) receiver, not related to the BC-15
> transmitter, AFAIK.

Very related. The BC-15 was used in observation aircraft, with guys
listening in on them with BC-14s. 

How well this worked is up for debate - none were probably used in World
War 1 (most US WW1 radio sets were not used - made for the big push of
1918 that never happened).

>  For some reason those tend to bring high bids on ebay
> (sometimes over $2000), yet I don't think they're all that rare either.

I would bet an average of 1 BC-14 or BC-15 hits Ebay every week.

William Donzelli
aw288 at osfn.org