Amplifier model for Bell system access control. Also used on other systems. Model 51.
Includes wiring connection sheet.
Second user, tested stock.
Dimensions: 139 x 87 x 39mm
BELL SYSTEM (BSTL) EARLY MODEL ACCESS CONTROL AMPLIFIER
Privacy Overview
This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.