[BC] Re: Secondary & Tertiary Tone

[Tom]

ATC / Gates APC-10

Program with

rotary telephone dial

memory

Fidelipac 300 cart

mode

8 kHz pulses

pause on EOM

recue to 1 kHz on time command from

"digital" clock which used THREE steppers - hours, minute-tens, and 
minutes; driven by standard 1-RPM AC clock motor driving a shaft with 
several cams to trip the steppers...

CLUNK (Scully 270 starting) CLACK (Scully 270 stopping) 
BRAPPPPTHWACKTHWACKTHWACKTHWACKTHWACKTHWACKTHWACKTHWACK (stepper cycling 
to next event)

I had it up and running for a while, back when I first got it, just to 
see if I could.  And it actually was pretty reliable for the week or so 
I let it run (of course, I had to stop it at bedtime; with only three 
reels, no way to load it for overnights...<grin>)  I will say this about 
MODH automation... no more EOT alarms....

I've also delved into the relay logic mysteries of the IGM 300......

Chuck Lakaytis wrote:
> I well remember working for Ingstad Broadcasting  programming and 
> maintaining a Cetec 902-903 system fully equipped with ITC 750's Otari 
> 1000's, several accursed Audiofile cart machines, and the ever weird 
> giant carts that held the time announcements.  One for even minutes, 
> one for odd.  Did it all with arcane command line commands from a 
> Behive Terminal, made of course in the Beehive state of Utah......
>
> Never ever complain about modern automation systems unless you have 
> worked on one of the old girls at the start of the automation age!
>
> I spent many an hour with my logic probe looking for the fault in 
> those racks of  7500 logic cards.
>

-- 
Tom Spencer
PG-18-25453 (nee' P1-18-48841)
http://radioxtz.com/