[ARC5] WTB : ATD Tuning Unit

[Mark K3MSB]

My Instruction Book says “Preliminary Copy – To be replaced by Final Copy”
Contract NOs – 73237 20 May 1940.


There is an asterisk next to the 9-18.5 Mc Tuning Unit ( as well as the 200
– 540 Kc Tuning Unit) that reads “Quantity of these units shipped with each
transmitter unit subject to Navy requirements and orders.  Information on
these units is included in this instruction book in the event that these
units are made available to the service at some subsequent date”


FYI, my ATD has a 540 to 1500 Kc and 1500 Kc to 3000 Kc Tuning units, and a
pair of 3000 Kc to 9050 Kc tuning units.   Were these 4 units standard
delivery?


73 Mark K3MSB

On Wed, Nov 18, 2015 at 11:11 AM, Mark K3MSB <mark.k3msb at gmail.com> wrote:

> Hi Guys
>
> I knew they weren’t common, but I didn’t know they were that rare.
>
> I acquired my ATD over the summer and it came with an original manual;
> I’ll have to check the date on the manual as I’m sure it references the
> 9-15 Mc Tuning Unit.
>
> Well, if one shows up I’ll be glad to photograph it for y’all…..
>
> So, my winter project was to finish the BC-348Q and start my first ART-13
> project,  but now that I have a complete ATD system and an almost complete
> ARB, I’m reconsidering……   decisions….. decisions…..
>
> 73 Mark K3MSB
>