[Milsurplus] Automatic Direction Finding Eqpt.

[Richard Brunner]

I've been reading the history of automatic direction-finding which 
was developed during WWII, and was important in neutralizing the 
U-Boats.  But, I don't think I have ever seen any of the equipment.  
The designations are DAJ, DAQ, DAK, DAG, DAU, DAW, DBA, 
DAR, and British types FH-3 and FH-4.  I believe even today 
release is prohibited under the Munitions Export control Act.  Has 
anyone ever seen any for sale?  Not many were made, perhaps a 
few thousand.

Richard Brunner, AA1P