[Boatanchors] identification of a P A coil assembly

[pmills7 at houston.rr.com]

Clive,

According to a 1954-1955 Radio's Master catalog, the Johnson 232-610 is
a 31 microhenry coil that sold for $8.90.  It is "edgewise wound, 1/4" 
copper
strip, cadmium plated, glass bonded mica supporting bars.  Widely used 
commercially, they will safely handle more than 1000 watts in continuous
service."   The picture does not show any taps so they were most likely 
added
by someone.

BTW, the radio master catalogs show up occasionally on the e-place at very
reasonable prices.  They are very handy as reference for all kinds of 
boatanchor
parts.

73, Phil
W5BVB

----- Original Message ----- 
From: "CLIVE COLLINS" <dartaviation at btopenworld.com>
To: <boatanchors at mailman.qth.net>
Sent: Sunday, June 27, 2004 10:42 AM
Subject: [Boatanchors] identification of a P A coil assembly


> Good day Gentlemen,
>
> Can anyone identify a coil assembly for me please.
>
> It is wound from quarter inch plated strip (possibly copper) and is 
> supported on three Mycalex strips.
> The only other information printed on it is "JOHNSON 232-610" but that 
> doesnt mean a lot unless there is a company of that name still making 
> coils.
> It seems to be the tank coil for a one kilowatt transmitter with taps 
> brought out on tapes, again a quarter of an inch wide and soldered on to 
> the main form,.taps are at 4,5,7,9,16 and 24 turns with overall turns 
> being 40  with a diameter inside of two and a half inches.
>
> Any help would be appreciated please.
> Thanks in advance.
>
> Clive GW3WEQ
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