[Milsurplus] The U.K. Aircraft Dynamic Mics (was "T-1154...)

[BenG4BXD]

There was the A1134 British intercom amp, 
http://home.versatel.nl/gmwzijlstra-prummel/mockup%20a%20005.jpg
also the US BC-347  http://aafradio.org/flightdeck/BC-347.jpg
or the Packard Bell model K  
http://www.vintage-radio.net/forum/attachment.php?attachmentid=50819&d=1304980188
(I have one of these as an 80Mtr QRP tx!)

Ben.




> Speaking of mics in U.K. sets:> I've found no detailed documentation 
on the microphones> used in U.K. aircraft.> Can someone enlighten me 
about the types and specifications> of dynamic mics used in WWII U.K. 
aircraft?> Are they voltage- or current-driven designs?> They must have 
had a high output level, given what> it takes to use the "Dynamic" 
setting on an ART-13.> And also, the specs on the carbon mics used?Hi 
Dave,I am no expert but I believe the larger aircraft sets used the 
intercomamp as a mike amp. I vaguely remember seeing a dry battery 
powered ampused in some diagrams.The VMARS Manuals web site may have a 
lot of information of use with theBritish sets.Also, if you like, I can 
pose your question to the VMARS Yahoo Group.Best.-John