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Automatic Electric Company Monophone

Started by Electrophone, July 31, 2024, 10:10:23 AM

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Electrophone


TelePlay

Just for reference for this topic, this is the wiring diagram from the TCI library for the 1A desk set alone (4 conductor mounting cord goes to the subset being used - not shown).

Electrophone

#17
With the 1949 Western Electric dial and the (still unidentified) handset that was added to this Automatic Electric Company Monophone 1A, this made the ultimate wiring of this phone set somewhat slow going.  To add to the difficulty, neither the handset nor ringer cords had matched the original colored wires of the AEC Monophone 1A.  In addition, the wiring of the (still unidentified) handset did not match the original AEC Monophone 1A handset.  Moreover, a 1949 Western Electric dial was substituted for the original AEC Monophone 1A dial which only added to the difficulty.

Anyways, I now have the AEC Monophone 1A partially and somewhat rewired.  What I need now is the 205 RES that connects between terminals 2 & 8 (which was missing when I received the set).  At this point, I don't know if I have the ringer box male plug wired correctly (as one of the wires in the plug was removed), nor am I sure that I have the Western Electric dial wired correctly.  This is where I am at right now.   

Ringer Male Plug: Green = Brown, Yellow = Orange, Red = Red
Disconnect Switch: Orange = Orange, Red = Green, Black = Black, White = White (Original green and white wires were snipped off).
Handset: Red = Red, Black = Brown, White = Orange (Red & White were switched on the transceiver so as to conform to the AEC Monophone 1A).

rdelius

AE type 41 handset .introduced on later models but also used to replace older handsets

Electrophone

Quote from: rdelius on August 17, 2024, 02:00:26 PMAE type 41 handset .introduced on later models but also used to replace older handsets

Thanks for the information!

TelePlay

Someone at some time hot wired that desk set to the phone line using a 4 prong wall jack plug.

A subset is hard wired to the desk set.

The subset is connected to the phone line using that 4 prong plug, or a modern modular plug.

That 4 prong plug,  or a newer modular plug, cannot be used to properly attached the desk set to a subset.

poplar1

Quote from: TelePlay on August 17, 2024, 02:49:31 PMSomeone at some time hot wired that desk set to the phone line using a 4 prong wall jack plug.

A subset is hard wired to the desk set.

The subset is connected to the phone line using that 4 prong plug, or a modern modular plug.

That 4 prong plug,  or a newer modular plug, cannot be used to properly attached the desk set to a subset.

It's obvious that a previous owner "hot-wired" the phone for direct connection to the line without a subset, since it has a 2-conductor cord.

However, the 4-prong 283B plug, and 4-conductor 404B jack, were in fact developed circa 1931 by WE to connect a 202 to an anti-sidetone subset, whenever the customer wanted a portable hand telephone set.
Mets-en, c'est pas de l'onguent!

"C'est pas une restauration, c'est une rénovation."--François Martin.

TelePlay

Quote from: poplar1 on August 17, 2024, 05:15:49 PMHowever, the 4-prong 283B plug, and 4-conductor 404B jack, were in fact developed circa 1931 by WE to connect a 202 to an anti-sidetone subset, whenever the customer wanted a portable hand telephone set.

Interesting. Would this be a subset mounted centrally and with runs to various locations so the desk set could be used at multiple locations through one subset, as in a restaurant?

poplar1

Yes, it could be used in a restaurant, other business, or residence. However, unlike with a sidetone subset -- where multiple desk stands (20AL, 50AL, 51AL) and/or 102s can be all connected to one centrally located sidetone subset -- only one 202 or 151AL can be connected for each anti-sidetone subset, whether directly, or extended with 4-conductor inside wire to a 42A connecting block or a group of 404 or 405 jacks.

For multiple sets connected to a single anti-sidetone subset, you would need a 215 (D8 mounting), 151R desk stand, or 213 hang-up type (G3 mounting). The 215 has an extra set of contact springs designated R and RH to open the red handset conductor when on-hook. Two 202s connected to one 684A subset is not practicable, because if one 202 is off-hook, both transmitters will be connected, even if the other 202 is hung up. (Red and Black conductors from both phones connected to R on induction coil and BK terminal in subset.)
Mets-en, c'est pas de l'onguent!

"C'est pas une restauration, c'est une rénovation."--François Martin.

Electrophone

Quote from: TelePlay on August 06, 2024, 06:26:35 AMJust for reference for this topic, this is the wiring diagram from the TCI library for the 1A desk set alone (4 conductor mounting cord goes to the subset being used - not shown).



I rewired the AEC Monophone 1A telephone this morning as per the wiring diagram shown, but the disconnect switch did not contain a red wire.  This was because the disconnect switch only had 2 contactors (4 wires altogether).  Consequently, I could not attach any such red wire to terminal 8.

Regarding the disconnect switch, what I have connected is the black wire to terminal 3, the green wire to terminal 2, the orange wire to terminal 1, and the white wire to terminal 7.

So where do I go from here?  Thanks.

Electrophone

The original ringer box for this Automatic Electric Company Monophone 1A is now somewhat rare and quite pricey.  Does anyone know of a substitute ringer box that just might work with this phone?  Thanks.

SUnset2

Well, since you've already got a Western Electric dial, you could use a Western Electric subset, and wire it like a WE.  The later models might need a 5 wire base cord, though.  You can also use a 302 base as a subset.

Electrophone

Quote from: SUnset2 on August 23, 2024, 12:35:25 AMWell, since you've already got a Western Electric dial, you could use a Western Electric subset, and wire it like a WE.  The later models might need a 5 wire base cord, though.  You can also use a 302 base as a subset.

Thanks for the suggestions!  I'll look into it.

5415551212

Quote from: Electrophone on August 22, 2024, 10:08:53 PMThe original ringer box for this Automatic Electric Company Monophone 1A is now somewhat rare and quite pricey.  Does anyone know of a substitute ringer box that just might work with this phone?  Thanks.
You could make a cheater subset with capacitor and a resistor like so:


Electrophone

Quote from: SUnset2 on August 23, 2024, 12:35:25 AMWell, since you've already got a Western Electric dial, you could use a Western Electric subset, and wire it like a WE.  The later models might need a 5 wire base cord, though.  You can also use a 302 base as a subset.


Well, I picked up a WE 302 subset & ringer last week for the Automatic Electric Monophone 1A.  In addition, I recently ordered a 5 conductor cable from Old Phone Works so it'll be some two weeks before that cable arrives.  In the meantime, I had partially rewired the Automatic Electric Monophone 1A so as to mate with the WE 302 subset and ringer.

Regarding the handset, I have the white wire (L1) attached to terminal BB on the WE dial, and the black wire (L2) attached to BK on the WE dial.  The red wire (L3) is attached to terminal 2 of the Automatic Electric Monophone 1A.  Terminal Y on the WE dial is on the left side of Terminal BK (adjacent to it).

This is where I am at right now with the WE dial.  According to the WE 302 print, I have the white and black wire properly connected to the WE dial, but I am unsure as to how to connect the rest of the dial.  Any tips or suggestions?  Thanks!