[Hallicrafters] HA-4 manual

[Brian Burns]

Hello All,

 

An original manual for the HA-4 keyer just popped out of an old Handbook.
Free to anyone that wants it. It is available on BAMA, but it's kinda fun to
have an original.

 

Cheers,

 

Brian Burns Ex: W5BRO, K6UCD