[Milsurplus] Need Info On TAV-4

[Nick England]

All very interesting and congrats on bringing to light a really neat unit,
Don.

FWIW, Howeth says "During 1930...49 models TAV and TAV-1 medium-frequency
portable field transmitters were issued to major units of the fleet; "

TAV and TAV-1 might possibly be a design by National Electric Supply (manuf
code CN) - they made some WWI era Navy gear at least.
CN-238 rcvr, CN-239 rcvr, CN-240 rcvr, CN-1105 airborne xmtr
Maybe Westinghouse (CAY) was a follow-on contractor for TAV-4?

Aside - Say, Robert, what's the story on an equipment number like TAV-a
instead of TAV-1?

cheers,
Nick K4NYW
www.navy-radio.com

On Wed, Apr 20, 2011 at 2:32 PM, <WA5CAB at cs.com> wrote:

> David,
>
> The five-digit Navy Type Number system dates to WW-I.  I think that the
> CN-3311 and 3313 are maybe Westinghouse numbers.  They aren't Navy Type
> Numbers.  The two (later three then four) letter Contractor Code also dates
> to
> WW-I.  If the "CN" was actually a Contractor Code, it would mean National
> Electric Machine Shops and National Electric Supply, not Westinghouse,
> which is
> CAY.
>
> The TAV-1 contract was let in 1929 (as were the TAV and TAV-a).
>
> In a message dated 4/20/2011 11:56:20 AM Central Daylight Time,
> dedsall at myfairpoint.net writes:
> > found a note, source unknown, as follows:
> >
> > TAV-1 Radio transmitting-[receiving] eqpt ...; incl. CN-3311 radio xmtr;
> > CN-3313 radio rcvr ...
> >
> > This must predate the one on eBay.
> > When was the CN- nomenclature used and discontinued?
> > 73, David W1TDD
> >
>