Author Topic: KELLOGG ITT 530 Select O Phone  (Read 446 times)

Online Jim Stettler

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Re: KELLOGG ITT 530 Select O Phone
« Reply #15 on: March 25, 2020, 03:30:52 PM »
My guess is it  switches between voice and output (automation) circuits.
 This phone system provides output circuits (control circuits). Relay outputs to trigger lamps ,bell, or other control relays.
 You could configure  this phone system to shut down your production line. Cool things like that.

Jim
You live, You learn,
You die, you forget it all.

Offline Doug Rose

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Re: KELLOGG ITT 530 Select O Phone
« Reply #16 on: March 25, 2020, 03:43:11 PM »
Really good info Jim...you are right, the Select O Phone did do some cool things. Well ahead of its time, indeed! ...Doug
Kidphone

Offline LarryInMichigan

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Re: KELLOGG ITT 530 Select O Phone
« Reply #17 on: March 25, 2020, 06:00:33 PM »
I believe that one of the functions of the button was to ring the phone at the other end.  Somewhere in the archive is a Select-O-Phone manual.

The phone looks really nice. 


Larry
« Last Edit: March 25, 2020, 09:19:01 PM by LarryInMichigan »

Offline Doug Rose

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Re: KELLOGG ITT 530 Select O Phone
« Reply #18 on: March 25, 2020, 08:32:31 PM »
I believe that one of the functions of the button was to ring the phone at the other end.  Someone in the archive is a Select-O-Phone manual.

The phone looks really nice. 


Larry
thanks Larry...I do appreciate it....Doug
Kidphone

Offline SUnset2

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Re: KELLOGG ITT 530 Select O Phone
« Reply #19 on: March 27, 2020, 12:15:56 AM »
I've got the wall version of the Kellogg Select-O-Phone.  It has the same DC ringer, but is missing the switch.  I assume it has the non-standard dial, I haven't tried to figure it out.