[Milsurplus] 1918 Receiver IP-501

[Al Klase]

Hi Mike,

They are not quite vanishingly rare.  A fair number were produced, and 
RCA Radiomarine got involved, and sold and supported them for years.  
Legend has it that they survived on the Great Lakes throughout WWII, 
after they had been banned form the high seas do to oscillator radiation 
concerns.

I believe radios like this were the source of the low-radiation flap.  
It's a regen without an RF stage.  I once tuned it up on 600-meters into 
a good sized antenna.  I keyed the antenna lead with a relay driven by a 
function generator.  I could easily hear it a kilometer away on a 
transistor portable using the built-in loop.

73,
Al

On 4/23/2013 2:42 PM, Mike Morrow wrote:
> Dave wrote:
>
>> WWI-era Navy receiver:
>>
>> http://www.ebay.com/itm/171028364143
> Al wrote:
>
>> This appears to be an IP-501 from 1918 with about 5 inches sawed off the
>> right side.  I guess I should be glad mine is reasonably intact, even if
>> it has a bunch of cobbled up parts.
>> http://www.njarc.org/rtm/Regen_Inages/IP-501-2.jpg
> Very nice looking!  I wonder how many of these have survived.  The one in
> the cited auction obviously has not.
>
> Mike / KK5F
> ______________________________________________________________
> Milsurplus mailing list
> Home: http://mailman.qth.net/mailman/listinfo/milsurplus
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Milsurplus at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/