[Boatanchors] voltage on the speaker???

[jeremy-ca]

Besides National; EH Scott, Stromberg Carlson and others used them in 
shipboard entertainment radios designed in the 30's but used during WW2 and 
then even into the 60's on some WW2 built ships. This included some stand 
alone line amps.

In various military and government shore installations I would believe that 
the National, Hallicrafters, etc, used similar to what was available to the 
commercial versions of those radios.

Carl
KM1H


----- Original Message ----- 
From: <WA5CAB at cs.com>
To: <boatanchors at mailman.qth.net>
Sent: Thursday, September 13, 2007 11:56 PM
Subject: Re: [Boatanchors] voltage on the speaker???


> Outside of the early National sets for the Navy, I can't think of any. 
> The
> Signal Corps BC-312  et al uses the 3-circuit microphone plug and jack for
> loudspeaker output.  And the DC sets (BC-312 and BC-314 retained the 12 
> volt field
> coil supply wire to the ring terminal right to the end.  But actual
> production of the field coil equipped predecessor to the LS-3 must have 
> stopped so
> early that I have never heard of anyone having one nor have I even been 
> able to
> learn what its nomenclature was.
>
> In a message dated 9/13/2007 10:01:12 PM Central Daylight Time, 
> jfor at quik.com
> writes:
>> Whether Heath used surplus or not, I don't think there was much WW II mil
>> gear that used wound field magnets
>> on speakers.
>>
>> -John
>>
>>
>> Glen Zook wrote:
>>
>> >Actually, by 1955 Heath was not buying surplus
>> >electronics parts to any extent, definitely not
>> >anywhere near like they were right after World War II. [snip]
>
> Robert Downs - Houston
> <http://www.wa5cab.com> (Web Store)
> MVPA 9480
> <wa5cab at cs.com> (Primary email)
> <wa5cab at comcast.net> (Backup email)
>
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