1978 Article on the MK12c, a Predecessor to the M30 Autodialler 

1978 Article on the MK12c, a Predecessor to the M30 Autodialler

Below is an early article from the 1978 Poultry World magazine on the Mk12C automatic autodialler an early predecessor of the M30 Alarm dialer. This machine had its messages stored on 8 track tapes!!!!
1978 Article on the MK12c, a Predecessor to the M30 Autodialler