[ARC5] CW and Mic plugs

[Christopher Bowne]

The Microphone Hand No. 7 is the one used with the British/Canadian/Lend Lease Russian Wireless Set No. 19 transceiver.  It has a dynamic element.  Not many are operable 70 years after their manufacture due to failure of the fine wire coil of the dynamic element.    Looks like a big lollipop, has an old school rubber mouthpiece like  an old candlestick telephone mike. There is a PTT switch that uses two conductors independent of the microphone element for TR switching. I also recall that the PTT switch (pressel switch in Brit)  also has a set of contacts that closes the circuit for the microphone element. I transplanted a carbon element into mine to use with my WS19 along with a AAA battery for excitation and a small pot to adjust the output level.  Provided more than adequate excitation for the the WS19.



On Thursday, May 29, 2014 10:47 PM, WA5CAB--- via ARC5 <arc5 at mailman.qth.net> wrote:
 


The Vietnam War vintage HS-16-A's were bought for the Village Radio 
program.  Except that the HB-1 Headband cloth is green instead of black, they look 
just like the WW-II version.  I have a bunch of them but don't recall 
noticing any quality problems.  Why or who decided to supply WW-II design HS-16's 
with the radios, I've never heard.  Could have been in part because they 
were 520 ohm and were listed in the early 50's catalogs as cheaper than then 
current Low-Z headsets.

In a message dated 05/29/2014 18:32:09 PM Central Daylight Time, 
jeepp at comcast.net writes: 
> Robert,
> 
> I always wondered who used the HS-16 with pin plugs.  I've got a couple 
> originals and also one or two of the ones that showed up on Ebay a while 
> back, said to have been procured for a "black" project.  The curious 
> thing with them was that the threads were metric and the machined 
> portions were really poorly done, as were the molded cups.  Although the 
> packaging was typical foil/paper and the nomenclature info looked 
> authentic, there was no manufacturer, cage code, etc. on the wrapper and 
> the contract number was bogus.  Dunno... much folklore associated with 
> them....     Oh... but then they were sold as an expensive accessory to 
> the TV-7!
> 
> Jeep - K3HVG

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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