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ringer box and need help on getting it to work? Answered

Hello. Here is the pictures of my ringer box that everyone was asking about from my last ringer box question. what am i missing? there is no bells (and dose not seem to be a spot for them) and the crank arm. So what am i looking at and can someone tell me or give me a list of parts needed? Thanks

Discussions

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Josehf Murchison

3 years ago

You are missing just about everything important receiver, bells, bell solenoid. all you have is the box, capacitor, and transformer.

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Jack A Lopez

3 years ago

Thanks for uploading the pictures.

What this looks like to me, is a wooden box containing a capacitor, a transformer, and a whole bunch of screw terminals, and a few wires.

You ask, what parts are missing.

To me this kind of feels like paleontology, like you've shown us a femur and a vertebra, and now you want to build the rest of this extinct animal.

So I decided to try Google images, looking for circuit diagrams for antique telephones, for to sort of see how these two parts, a capacitor and a transformer, (formerly called "condenser" and "induction coil" respectively) might fit into an antique telephone, and I found this pdf:

http://www.camblab.com/old_tel/rpr_ot21.pdf

which is essentially a collection of circuit diagrams and notes for antique telephones. I like this document, because it gives a good overview, of several different kinds of old telephones, and the diagrams are almost easy to read.

Just from looking at these diagrams, I am guessing, your capacitor and transformer, might be a part of the circuit shown in figure 5, on page 13. This circuit has essentially six components, two of which are a transformer(induction coil) and a one microfarad capacitor (condenser).

The remaining four components are: transmitter, receiver, hook switch, and ringer. So, I dunno. Maybe that's what's missing from your animal.

The circuit in figure 6, on page 14, is similar. It has these six same components: transformer, capacitor, transmitter, receiver, hook switch, and ringer.


There might be additional clues in the hieroglyphics. From the pictures you upped, I can tell there's writing all over this artifact. Unfortunately most of this writing is too blurry for me to read. I can make out the words "Northern Electric" printed on the capacitor, but that's about all I can read clearly. However you've got the artifact in front of you, so hopefully these glyphs are easy for you to read.

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iceng

3 years ago

What we can see;

The CONDENSER is the old word for Capacitor, hard to make out 1/4 or 1/2 uF. No idea what the 21AL means.

And what looks like a center tap to center tap iron rod transformer.

The 6th picture looks as if some mechanical device or gear box for a turn handle was once attached with a through shaft in that round hole near the condenser. But there is no wear pattern expected of a mechanical arm insertion point.

Too bad someone tore the wiring diagram in the 8th picture to hide the nine vertical and four horizontal screws for a total of 13 wires that must account for the six transformer, two condenser connect points plus a ringer pair, signal mike and ear phone.

In the attached second picture you can see the condenser on the bottom and the transformer above it and in the third a windup magneto generator.

My guess is yours was a battery operated ringer and you are missing a bell, a mike and ear piece and some kind of pulsar contact to generate the high voltage to ring another box in a system line.

ringer.jpgoldPhone1.jpggenerator.jpg
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Downunder35m

3 years ago

Could only find this on Ebay.
A similar cranking generator should be in your box (sadly missing).
Maybe something like this can be used to complete your box.
Some more to give you ideas:
1

2

3

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Downunder35m

3 years ago

These things were meant to provide a high voltage by means of cranking a handle.
A little generator gives the juice and at the other end it would make the phone or box ring.
But it looks like the most vital of such a system are missing in your box, there is no generator and other "box", the actual phone is missing too.