[Boatanchors] Pair of Crystals needed

[Rob Atkinson]

you mean something like this:

http://www.ebay.com/itm/256-VTG-CRYSTAL-WESTERN-ELECTRIC-FT-241-SIGNAL-CORPS-HAM-RADIO-/331040709936

Rob
K5UJ

On Sat, Mar 8, 2014 at 7:46 PM, Al Klase <ark at ar88.net> wrote:
> Hello Keith,
>
> Probably your best shot is the FT-241 tank radio crystals, the armor
> frequencies in particular. They are labeled channel 0 thru 79. The operating
> frequency is 20 MHz + (ch. # divided by 10). So Channel 45 is 24.5 MHz, and
> the crystal frequency is F / 54 or 453.7 KHz , Channel 48 would get you
> 459.3 KHz for a spread of 5.6 KHz. Other combinations my be acceptable.
> There are entire sets of these crystals are still laying around in junk
> boxes everywhere. We built enough to invade Japan in 1946.
>
> Good luck,
> Al