Classic Rotary Phones Forum

Telephone Identification, Repair & Restoration => Telephone Wiring Diagrams => Western Electric 300 Series Wiring Diagrams => Topic started by: shortrackskater on January 31, 2015, 11:48:06 PM

Title: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: shortrackskater on January 31, 2015, 11:48:06 PM
I'm completely lost on wiring for my phone.
I'm following the "typical 302 4 wire ringer" diagram and confused. For example, on the left, it says green to L2 on coil but when you follow the wire, it lines up to red on the coil. I don't see any L2 on the coil itself. I see the L2 on a board next to the coil. And when I follow "yellow to L2 on coil," wire - it goes to L1.
Also, my line cord has a black wire and I don't see where that goes.
Title: Re: Lost on wiring for WE 302
Post by: tallguy58 on January 31, 2015, 11:57:06 PM
There are a bunch of photos on this site to help you with the wiring. The black lead can be taped off.
Title: Re: Lost on wiring for WE 302
Post by: shortrackskater on February 01, 2015, 12:45:52 AM
Quote from: shortrackskater on January 31, 2015, 11:48:06 PM
I'm following the "typical 302 4 wire ringer" diagram and confused. For example, on the left, it says green to L2 on coil but when you follow the wire, it lines up to red on the coil. I don't see any L2 on the coil itself. I see the L2 on a board next to the coil. And when I follow "yellow to L2 on coil," wire - it goes to L1.
Also, my line cord has a black wire and I don't see where that goes.

I see lots of pictures but my coil doesn't have L2, etc... None of the photos show a coil like mine. So I followed the really nice color wiring diagram, which seems closest to my phone and was stuck with my above questions. I've plugged the phone in and get nothing.
Title: Re: Lost on wiring for WE 302
Post by: Phonesrfun on February 01, 2015, 02:17:18 AM
It sounds like you have a 304, not a 302. 


here is a link to the diagram for the 304/354 at the TCI library:


http://telephonecollectors.info/index.php/browse/wiring-diagrams/western-electric/doc_download/2172-300-series-desk-telephones-354-tl
Title: Re: Lost on wiring for WE 302
Post by: zaphod01 on February 01, 2015, 04:56:42 AM
Case for a 304 would be marked H3. I have a 304 configured for single-party use. It arrived configured as a party-line phone and I followed the wiring diagram in the BSP. I literally took every wire loose and started over. Works like a champ. Let me know if I can help.
Title: Re: Lost on wiring for WE 302
Post by: zaphod01 on February 01, 2015, 05:03:41 AM
I used C38.555 i2 apr58 - Telephone Sets 304 and 5304

http://tinyurl.com/oyyg3g7
Title: Re: Lost on wiring for WE 302
Post by: dsk on February 01, 2015, 07:23:49 AM
Regarding ringer circuit, whats important is to get the coils sorted in the same direction, as batteries in a lamp or whatever. In this cicuit we need to put a suitable capacitor, where doesn't matter. The hole circuit ar then connected between the 2 lines in the direction you want, polarity does not matter here.

line -------------+ringer_coil1------capacitor--------+ringer_coil2---------line

dsk
Title: Re: Lost on wiring for WE 302
Post by: poplar1 on February 01, 2015, 11:05:39 AM
Quote from: zaphod01 on February 01, 2015, 05:03:41 AM
I used C38.555 i2 apr58 - Telephone Sets 304 and 5304

http://tinyurl.com/oyyg3g7

If you use this, wire it for "Individual or Bridged Station" as shown in Fig. 5 and Table B. You can leave off the yellow (and black) line cord leads; just connect red to L1 and green to L2. Note that this diagram is only for 304s or 354s.

Line cord inside telephone:
Red to L1 
Green to L2Y L2

Ringer:
Red to L1
Black to K
Slate (gray) to GND
Slate-red to GND

Ringing Capacitor:
Yellow to L2Y L2
Slate to K

EDIT: The terminal is marked "L2" and not "L2Y."
Title: Re: Lost on wiring for WE 302
Post by: poplar1 on February 01, 2015, 11:10:03 AM
Quote from: Phonesrfun on February 01, 2015, 02:17:18 AM
It sounds like you have a 304, not a 302. 


here is a link to the diagram for the 304/354 at the TCI library:


http://telephonecollectors.info/index.php/browse/wiring-diagrams/western-electric/doc_download/2172-300-series-desk-telephones-354-tl

Specifically, this one from the above list:
http://telephonecollectors.info/index.php/browse/wiring-diagrams/western-electric/doc_details/2305-300-series-wall-telephones-354-tl
Title: Re: Lost on wiring for WE 302
Post by: unbeldi on February 01, 2015, 12:00:50 PM
Here is a description of the differences and features of the 304 telephone,

http://www.classicrotaryphones.com/forum/index.php?topic=5720.msg126771#msg126771

including another circuit diagram that is less cumbersome as the official BSP drawings.

Title: Re: Lost on wiring for WE 302
Post by: shortrackskater on February 01, 2015, 02:28:56 PM
Thank you everyone!
This makes sense since my phone has H3 on it and the induction coil is marked 101B.
I'll check out all the links and re-wire accordingly.
One more thing, I did get a replacement hang-up switch. I'm assuming it's the same for a 302 as a 304, I hope.
Title: Re: Lost on wiring for WE 302
Post by: poplar1 on February 01, 2015, 02:36:20 PM
Quote from: shortrackskater on February 01, 2015, 02:28:56 PM
Thank you everyone!
This makes sense since my phone has H3 on it and the induction coil is marked 101B.
I'll check out all the links and re-wire accordingly.
One more thing, I did get a replacement hang-up switch. I'm assuming it's the same for a 302 as a 304, I hope.


Actually, it's not. The 302 hookswitch has only 4 wires (2 sets of make contacts) and the 304 hookswitch has 6 wires (3 sets of make contacts). However, if you have the 4-wire hookswitch, just connect the green line cord wire and the yellow capacitor wire to RR (instead of L2).

Or run a jumper wire to connect L2 to RR, to substitute for the missing green-red and slate-red hookswitch wires.
Title: Re: Lost on wiring for WE 302
Post by: shortrackskater on February 01, 2015, 02:42:41 PM
Quote from: poplar1 on February 01, 2015, 02:36:20 PM
Quote from: shortrackskater on February 01, 2015, 02:28:56 PM
Thank you everyone!
This makes sense since my phone has H3 on it and the induction coil is marked 101B.
I'll check out all the links and re-wire accordingly.
One more thing, I did get a replacement hang-up switch. I'm assuming it's the same for a 302 as a 304, I hope.


Actually, it's not. The 302 hookswitch has only 4 wires (2 sets of make contacts) and the 304 hookswitch has 6 wires (3 sets of make contacts). However, if you have the 4-wire hookswitch, just connect the green line cord wire and the yellow capacitor wire to RR (instead of L2).

Or run a jumper wire to connect L2 to RR, to substitute for the missing green-red and slate-red hookswitch wires.

Ugh! That's what I get for not looking closely at this phone before buying parts. I did also buy a replacement dial but the old one was an H5 and so is the replacement.
Which is easier to do ... the jumper or the re-wiring for the hookswitch?
Thanks again!!!
Title: Re: Lost on wiring for WE 302
Post by: poplar1 on February 01, 2015, 02:45:35 PM
I would run the jumper wire since it makes it easier to follow the diagram. I only mentioned the other method in case you didn't have any jumper wire.

Electrically, both ways are the same.
RR on this induction coil is equivalent to L1 on the 101A induction coil in a 302.

Title: Re: Lost on wiring for WE 302
Post by: shortrackskater on February 02, 2015, 08:04:16 PM
Thank you!!!
Title: Re: Lost on wiring for WE 302
Post by: shortrackskater on February 04, 2015, 11:18:10 PM
I must be the dumbest person on earth with regard to phone wiring. None of this makes sense. The diagram shows the mounting cord having two of each... tip party? ring party? What's that? The table 5 chart shows mounting cord in set and mounting cord at connecting block. I don't know what that means either. What's L2Y? I don't have that... I have an L2, but no Y. A wiring list posted here show two wires from the capacitor but mine has 4 wires.
Is there any diagram anywhere that just shows the wiring for this phone?
Title: Re: Lost on wiring for WE 302
Post by: Phonesrfun on February 05, 2015, 12:43:50 AM
You have a 304 and if your diagram shows L2Y then you are looking at a diagram for a 302.  I will post wire-by-wire instructions for you to follow.  Ringing schemes such as bridged, tip party or ring party have to do with how ringing is done on party lines so that only one phone rings on a shared line.  Bridged ringing is the only kind of ringing that is in place these days.

Stay tuned for the instructions.
Title: Re: Lost on wiring for WE 302
Post by: Phonesrfun on February 05, 2015, 01:40:48 AM
First of all, locate the terminal board on the base of the phone that has terminals labeled L1, L2, K, and GND.  It is a little black square board next to the induction coil.  Next, locate the induction coil which has terminals RR, M, C, R and GN.

Line cord wires:

•   Red to terminal L1 on the terminal board
•   Green to terminal L2 on the terminal board
•   Yellow and black line cord wires – do not connect.  Tape the ends separately.  These are not needed.  Some cords don't even have a black.  The yellow was needed only for party line ringing which is not used these days.

Ringer wires:

•   Red to terminal L1 on the terminal board along with the red line cord wire
•   Black to terminal K on the terminal board
•   Both the slate and slate/red ringer wires should go to terminal GND on the terminal board (Slate is another word for light gray)

Capacitor wires:

•   Yellow to L2 on the terminal board
•   Slate to terminal K on the terminal board
•   Black to the BK terminal on the dial
•   Red to terminal C on the induction coil

Note: The two light colored capacitor wires, slate and yellow, are sometimes indistinguishable in color due to fading and age.  Since this capacitor is not polarity sensitive, these lighter wires can be reversed without a problem if you cannot tell them apart.

Jumper wires:

•   Wire a piece of wire between L2 on the terminal board to RR on the induction coil.  (This takes the place of the third section of hookswitch which is missing from a 302 series hookswitch.
•   There should also be a jumper wire between RR on the induction coil and R on the dial

Hookswitch:

•   Yellow to terminal L1 on the terminal board
•   Brown/Yellow to Y on the dial
•   Green to GN on the induction coil
•   Brown/Blue to BB on the dial

Handset:

•   White to W on the dial
•   Black to BK on the dial
•   Red to R on the induction coil

That is it.  Just to make sure, however, check to see that the following are true.  (These connections have already been covered above):

Induction coil:

•   RR has two jumper wires connected to it.  One goes to R on the dial and the other goes to L2 on the terminal board.
•   C has the red capacitor wire connected to it
•   GN has a green hookswitch wire connected to it
•   R has the red handset wire connected to it.
•   M has nothing connected to it.

Dial:

•   W has the white handset wire
•   BB has the brown/blue hookswitch wire
•   R has a jumper to RR on the induction coil
•   Y has the brown/yellow hookswitch wire
•   BK has the black handset wire and the black capacitor wire

Terminal board:

•   L1 has the red line cord wire, the red ringer wire and the yellow hookswtich wire
•   L2 has the green line cord wire, a jumper to RR on the induction coil, and the yellow  capacitor wire
•   GND has the slate and the slate/red ringer wires
•   K has the slate capacitor wire and the black ringer wire

Compare all of this with the 304 wiring diagram attached to this message.  You will find that the only difference is that the 304 came stock with a third hookswitch section, and your replacement hookswitch is from a 302.  In place of that hookswitch section, we have put a jumper wire between L2 on the terminal strip and RR on the induction coil.  Having a 302 hookswitch versus a 304 hookswitch does not cause any problems. 
Title: Re: Lost on wiring for WE 302
Post by: G-Man on February 05, 2015, 01:53:02 AM
 Perhaps this wiring diagram borrowed from Steph Kerman will help understand what Bill and popularone have been trying to convey.
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: shortrackskater on February 06, 2015, 12:51:21 PM
THANK YOU phonesrfun and G man... Sorry for the delayed response; that thing called "work" keeps getting in the way of my phone fun.
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: shortrackskater on February 10, 2015, 11:05:23 PM
Okay I finally got the wiring correct! Phone dials out, rings, speaker works... BUT the mic doesn't! I took another one out of a slightly later WE phone and still nothing. It was a smaller one but the contacts still lined up. Any ideas?
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: Phonesrfun on February 10, 2015, 11:18:53 PM
Hmmmm...  If you can hear anything at all in the receiver, then the transmitter either has to be in the circuit or the red and black handset wires might be shorted, perhaps in the handset handle,  (could be elsewhere too).  Can you take c close-up photo of the handset inside the cup that holds the transmitter where the handset wires are attached to the contacts?  That's where I would start.


One test that would be difinitive is if you can still hear anything or get dial tone with the transmitter completely removed from the handset.  If you can hear anything with the transmitter out, then you have a short.
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: shortrackskater on February 10, 2015, 11:30:01 PM
The receiving audio is great!
I did double check the handset wiring in the phone. Here's a shot of the inside of the handset.
With transmitter in/out I still hear audio.
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: Phonesrfun on February 10, 2015, 11:36:25 PM
the black and white wires are reversed.  the black wire should connect to the center transmitter contact.  The red handset cord is in the proper position.  Reverse white and black and you should be good to go.
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: shortrackskater on February 10, 2015, 11:42:42 PM
THANK YOU!!!
I have a working phone, after probably 42 years of just sitting around. My uncle, who gave me the phone, passed away many years ago. He'd be very proud that I (and the help from you and gman, and others) got it functioning.
Thanks again
mark
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: Phonesrfun on February 10, 2015, 11:43:43 PM
Always a pleasure.
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: Babybearjs on March 06, 2016, 06:38:15 PM
Always remember.... R: RED  W: WHT  BK: BLK....
Title: Re: Lost on wiring for WE 302 ...oops 304 I meant!
Post by: shortrackskater on March 06, 2016, 07:25:26 PM
Thank you.
Phone still working great although I have not used it much in the year I've had it working.
However, I recently bought a device that connects to my cell phone via bluetooth.
My old phone plugs in the back and when it links to my cell, I then get my cell calls on the old phone, complete with a cool sounding "ring ring" when I get a call.
It works great but I cannot make calls on it... I'd say due to the dial.
So I bought a phone line switch and I can toggle between my cell and the land line connection.
It works great.