236G confusion

[bitbucket]

I think I've inherited someone else's unfinished project. The attached photo shows the patient. It's a 236G with a network installed where I'm accustomed to seeing a ringer. Important to note is that there's no sign of the 15-pin connector (neither make nor female side) that typically connect the front of the upper housing with the electronics on the back plate (sorry for not knowing the proper names here).

I have two other 236G's but both have the networks tucked away in the front of the upper housing. The connector that's missing here is wired, in part, to the network. So, even if I had the connectors, I'd be a little lost as to how to wire them in this configuration.

Help, please?

[Stan S]

The answer is very simple.
The payphone isn't a 236 it's a 233.
The difference between a 236 and a 233 is that the 233 requires a subset.

The connections between the top and bottom of a 233 doesn't require a cable
and connectors. The connections between the top and bottom of the phone are made by the flat springs
on the back casting and the 'saw tooth contacts' in the payphones top.

The subset has the ringer and the network.
A 236 would have the network and ringer inside the payphone with a cable and connector
as you know.

What someone tried to do was make that 233 into a 191.
A very common modification years ago.
A 191 has an internal 101 coil and capacitor.
The only external component a 191 would need is a ringer.

You have a choice.
Find a diagram for a 233G and pull all the added wiring and the 101 coil out of the phone
or you can find a diagram of a 191G and probably get it to work the way it is.
You can probably search the diagrams here or I'm sure find them in the TCI library.
If you decide to make it a 191 and use the 101 coil I'd clean up the wiring a little.
Stan S.

[FABphones]

http://www.classicrotaryphones.com/forum/index.php?topic=16308.0

[bitbucket]

Thanks guys for the enlightenment and the wiring diagram. Much appreciated!