[Milsurplus] :LF receivers - "cheap" R-389s...

[Bob kb8tq]

Hi

If the interest in R-390’s and R-390A’s is in relation to LF operation … They don’t normally 
tune below 500 KHz. Getting them to run at LF is “interesting”. I seem to have piles of both
radios sitting in the “I’ll get to it” category. 

The “most fun” LF radio I’ve ever owned was a BC-453. It will do LF without any mods. It runs well
on normal antennas. It’s selective enough to do what needs to be done at LF. 

One note: When converting the filament voltages on a 453, don’t randomly cut wires that are 
“in the way”. The radio does not work well until you hook them back up. I learned that back in 
the 1960’s.

Bob

> On Sep 18, 2017, at 5:24 PM, Kenneth G. Gordon <kgordon2006 at frontier.com> wrote:
> 
> On 18 Sep 2017 at 16:38, randy Davenport wrote:
> 
> > Where can I find a R389 or R390 or R390A cheap?
> 
> Cheap? For either one? Not possible unless you happen to find one hidden away at an SK estate.
> 
> For one thing, there were only something like 1000 R-389s built, and all for the Army (why the Army, I never could figure out).
> 
> The last R-389 I sold went for something like $1500.00 plus shipping.
> 
> I had three at one time, and kept the worst, most incomplete, one of the bunch...and it is NOT for sale and never will be until after I am SK.
> 
> R-390s are also difficult to find. There weren't that many of them made.
> 
> R-390As are a bit more easily found, but still command a high price. Plus, you must replace a critical capacitor before you ever fire one up so you don't destroy the mechanical filters.
> 
> Ken W7EKB
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