This is 19FR-2 Manual and Automatic Volume Controls in the seemingly endless series of National Radio Institute booklets. Amplification was a novel advance that came with electrification. This manual covers RF voltage controls, AF voltage controls and gain controls.Friday, September 04, 2009
Volume Controls...
This is 19FR-2 Manual and Automatic Volume Controls in the seemingly endless series of National Radio Institute booklets. Amplification was a novel advance that came with electrification. This manual covers RF voltage controls, AF voltage controls and gain controls.
Subscribe to:
Post Comments (Atom)
Posts
Thanks for sharing 19fr' features.
ReplyDelete