This is a complete AT 1-6 Tuned input board and switch from the Amp Supply
LK series
Amplifiers. This will fit into the Dentrons also. Have schematics for this.
If you have a Stock Amp Supply or Dentron amp this is what you need.
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE%3AIT&rd=1