[600MRG] 600 meter grid dippers

[Carl]

Gee, I only got $1200 for a pirate copy of a spherical audion. Made in Lynn 
MA where there were a couple of lamp factories and entepreneurs in those 
early radio days (-;  Even the filament was good. I got it in Lynn from an 
estate of an old time ham. The 3 sons (typical rough trade Irish) thought 
everything was gold, especially any audiophool tube they could price on 
Fleabay. I passed on all that stuff and stuck to old house radios from the 
20-30's, NIB regular tubes, lots of decent parts and the audion was stuffed 
in a small ratty cardbox with small parts, they thought it was just a light 
bulb! Walked out with a 1T extended chassis Dodge van load packed to the 
roof for $500, sold a couple of radios to recoup the purchase and milked the 
rest over a couple of years on Fleabay and elsewhere.

Carl
KM1H


----- Original Message ----- 
From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
To: "Carl" <km1h at jeremy.mv.com>
Cc: <600MRG at w7ekb.com>
Sent: Friday, January 17, 2014 11:46 AM
Subject: Re: [600MRG] 600 meter grid dippers


> On 16 Jan 2014 at 22:25, Carl wrote:
>
>> I still have the HB GDO I built in 1955 from a 1949 CQ article but it
>> hasnt been turned on in ages since I picked up a Measurements 59 and
>> coils from the National Radio final sell off in 1992.
>>
>> I also got the 59LF head with it but no coils, someday maybe I'll find
>> a set.
>>
>> Carl
>> KM1H
>
> I have three GDOs here: two AN/PRM-10s with all the coils, and a Millen 
> with
> all the coils, including the LF ones. I use the Millen regularly, and used 
> one
> of the  AN/PRM-10s regularly before I got the Millen.
>
> The reason I have two AN/PRM-10s is that I took mine to work once for a
> special project, then loaned it to a professor who needed to use it, who 
> then,
> apparently, lost it. The University bought me a replacement....then the
> orginal one showed up again about 10 years later when the professor in
> question cleaned out his lab.
>
> The Millen I got when the EE Lab was cleaning out all their "junque". They
> were throwing it away, and I glommed onto it....along with some other nice
> equipment. One of the techs who was cleaning out the EE deparement's
> stuff knew that I liked old stuff and called me.
>
> The same thing happened with our Physics department, and with our
> Chemistry department. I got a bunch of NIB power tubes from the Chemistry
> department and some new sockets to fit them.
>
> I also got a couple of nice LCR bridges and a signal generator or two.
>
> My dumpster-diving at the University has really paid off. I sold a replica 
> De
> Forest audion with socket (which was also being tossed) for $1500.00 to a
> collector who knew exactly what it was.
>
> Also, a somewhat damaged original "Navy Coupler" to another collector for
> $300.00.
>
> Well, back to the interesting experiments...
>
> Ken W7EKB
>
>
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