The mother-in-law popped spherical. She’s been clearing out the attic.
“Is that this of any curiosity to you?”
Yeah , why not …
It is an previous answering machine. It weighs rather a lot!
It is an incredible machine… on fairly a number of ranges…
It is “logic” management is carried out utilizing the bunch of relays you see on the left hand facet.
The outgoing message is saved on a 60 second limitless loop tape within the centre of the machine. The incoming messages are saved on the reel-to-reel tape on the precise hand facet.
The standard of development is totally very good. This should have been costly again within the day!
That is the outgoing limitless loop mechanism. It is a lot the identical as every other limitless loop 1/4″ tape mechanism. It has three tracks selectable through the use of the announcement swap on the tape head cowl. This bodily strikes the pinnacle up and down the tape.
The attention-grabbing half is the top detector. That is the little bit of the machine which is used to detect the beginning/finish of the tape, so as soon as the announcement has performed out, it stops the outgoing message and begins the incoming message recorder.
Usually in and limitless loop system, there is a piece of silver conducting tape, which shorts out two contacts. Not right here…
And a corresponding slot within the tape…
The incoming message recorder additionally makes use of 1/4″ tape. Once more, high quality right here is spectacular. Correct fixed pace, capstan drive.
After the caller has hung up, the tape simply stops and will get prepared for the following incoming name.
Once you get dwelling, the machine rewinds to the beginning of the tape and performs the messages again.
(It’s worthwhile to look previous the wiring a bit) … the whole machine is pushed from one DC motor! It sits on high of the plate on the left hand facet of the image. By way of a considerably over-complicated system of idlers, operated by a solenoid (high proper) , the drive is transferred from outgoing to incoming mechanisms as required.
There’s one belt, which provides the drive in rewind to the incoming message.
One more superb bit …
Regardless of being retired to the attic someday in 1979 (40 years in the past on the time of writing), I carried out a number of cursory checks, and threw warning to the wind and plugged it in. It labored. Similar to that. Zero repairs required apart from to scrub the tape path.
Nonetheless extra superb bits…
How did I do know it was retired in 1979? There have been nonetheless incoming messages on it! My mother-in-law managed to this point the messages!
The audio high quality of those messages is great. I do know it is solely a phone answering machine, however even after sitting there for 40 years, the readability and constancy of the recording was very good. Sadly, as a result of private nature of those messages, I can not add them right here for you, however take my phrase for it!
One remaining factor… Storacall seems like they nonetheless exist in some kind or different, nonetheless recording cellphone calls! I will drop them a line !