Classic Rotary Phones Forum

Telephone Talk => Pay Station Telephones => Gray Pay Station => Topic started by: Haf on September 19, 2017, 03:56:18 PM

Title: Problems with Gray Western 150G
Post by: Haf on September 19, 2017, 03:56:18 PM
As I wrote in another post i recently got this nice, as I can see all original, Gray Western 150G. It came without a subset, so I took a 634A subset and a wooden backboard I already had, wired it after a diagram, should be correct but...doesn't work. I know the subset is ok, worked fine with other phones. Wenn the upper housing of the paphone is not mounted the bells ring when called (what they do even if no phone is wired to the subset). But when the upper housing is mounted, they don't, there is only a light twitch of the lever sometimes, but nothing more. No dial tone, not possible to answer call- nothing. My suggestion is, there is maybe a incorrect wired dial or a short somewhere.
I made a picture of my wiring. Note: The white wire is supposed to be green color in the diagram and the yellow wire on very top is just from the payphone controller to the coin relay, not conected to subset.
Any ideas someone?
Title: Re: Problems with Gray Western 150G
Post by: poplar1 on September 19, 2017, 05:01:51 PM
I would try to get it to function without the controller first.

The 2 line wires,  4 wires from subset, and 2 receiver wires look OK. What about the upper housing including dial cord and transmitter wires?
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 19, 2017, 05:20:26 PM
The yellow wire from the controller is just connected to the phone at the moment and the controller is not active so far, only the wire. The ring tip wires are stright connected between subset and telephone line without the controller.
Have to take pictures of the upper housing, but have to remove the coin chute first. Will do that tomorrow.
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 19, 2017, 05:27:50 PM
Haf
I'm assuming you have an ohm meter.
If you don't we can work around that.

The first thing I would do is get a magnifying glass and take a look at the hookswitch contacts FROM THE SIDE. Make sure that they are making contact and breaking. Over time the metal in those switch assemblies fatigues. Of course if you have an ohm meter you can check that electrically. The assembly has 2 single pole switches. Also make sure that there is no continuity between any of the terminals of the hookswitch and the case of the payphone, There are insulating tubes around the mounting screws of that switch. Over time they deteriorate and the mounting screws short the blades of the hookswitch to each other and the case of the phone. Also make sure that the switchhook has the insulating peg. If it doesn't the hookswitch will short the front set of contacts to the case.
I attached a large scan of a 150G diagram below.  Much easier to read!
Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 20, 2017, 12:48:55 PM
Stan, yes I have an ohm meter but I'm not really familiar wit its use. But I tried and looked carefully and detected a problem. The two "tongues" at the rear didn't make contakt as the rear one was a little bent backwards (you can see it on the on hook picture). Corrected this and then both making contact and break.
Remounted the upper housing again, conected with line and getting something different now.
When I lift the receiver I have a dialtone (same with or without inserting coin), when going off hook the receiver gets quiet. When sratching with fingernail at the transmitter can be heard in the receiver. Dialing only breaks dialtone during dialing, but after I still have a dialtone. You can hear the dial in the receiver. Bells still do not ring when upper housing in place. And my PBX where the phone is connectd with always signalizes off hook as long as phone is connected or upper housing in place.
I also took a closer look at the upper housing itself. It seems that there are only 3 wires (the rubber ones, black yellow blue) come from the dial but there seems to be a (black) jumber. No white wire like in the diagram. Took pictures.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 20, 2017, 12:55:38 PM
I forgot to mention, mesured between the hookswitch contacts and housing, no short. And another picture from the upper housing connector.
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 20, 2017, 04:18:43 PM
Haf
Well, you are making headway.
There has to be four wires in the dial harness. Two for the pulsing contacts and two for muting of the receiver.
I'd pull out the dial and the harness and make sure it's wired like the diagram at both ends.

After you correct the dial wiring, if putting the top on the phone still causes a problem it's probably the alignment of the 'saw tooth contacts' in the top and the blades on the back casting. Since we don't have have X ray vision the only way to make sure the alignment is correct is to remove the bottom of the payphone, sit the phone on its back and put the top on it. With no bottom on the phone you will be able to look inside and see if all of the contacts are positioned correctly. I've had situations where one of the 'saw tooth contacts' in the top was bent. When that happens the bent contact will push the blade on the back casting to far back, shorting that blade and the one in back of it together. The positions of the 'saw tooth contacts' are what separate the blades on the back casting when the top is on the payphone. Unfortunately there's no way of seeing any of this with the bottom on the payphone.

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 20, 2017, 06:44:46 PM
Stan,
thank you for your reply. I took another look at the  connector block and yes, you are right, there are 4 wires from dial. But there was also an obviously not original jumper wire between BB YY and W, see picture. I removed that as not shown in the diagram. Pulled out the dial, everything wired like it should. But good to know that the dial is dated  IV 31 too, same as upper housing. Then took a look at the blades and noticed the two screws holding the complete block were very loose, so tightend them carefully. Mounted upper housing but still same, pbx shows phone always off hook, when lifting receiver hear a dialtone, when off hook silences but as said, phone seems to be off hook, no matter if the  reciver is hooked or not. But as the dialtone in the receiver silences when putting on the hook I believe that the hook springs work correct. Error must be somewhere else.

Made some more tests...sometimes I would wish you were not always right as now I have to remove the bottom of the phone. I unlocked the upper housing and moved it a bit around and suddenly the pbx shows on hook, but when lifting the phones receiver going off hook and get a dialtone. And can call the phone, it rings, can answer the phone, receiver and transmitter work fine. Dialing was difficuld but as you move the upper housing just a little bit it starts to going off hook all time again.
I wish there was another solution without removing the bottom of the payphone. Well, will do that tomorrow, half past midnight here now. Thank you again for your help.

Haf
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 21, 2017, 12:44:24 AM
Haf
Yes, taking the bottom off is a lot of work. Hopefully the screws for the coin box track and the two large screws that hold the bottom to the back casting from the inside are not very tight.

Without the bottom and with the payphone laying on its back, along with being able to see what's going on you can also stick your hand inside and move things around while you slightly lift the top of the phone with it plugged into your pbx. Should make finding the problem very easy.

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 21, 2017, 04:00:25 PM
Before  taking of the bottom (did that today on another payphone just for training purposes not to damage the 150G if I do that one) I tried something else first. I loosened the two screws from the blades again so that each blade has more space to move. Now I can mount the upper housing without the error. So far so good (I know that I have to aligne the contacts properly in future). Now I can call the phone, bells ring. I can answer the call, receiver and transmitter work and can end the call. PBX tells me phone is going off hook and on again correct. But...I get a dial tone without depositing money, should not be. And I can't dial. The figures 1-6 do nothing, figure 7-0 break dial tone but when check what I dialed on pc, only single figure 1 is dialed mostly, sometimes a figure 3 and a 4 and only single time dialed the two figures 11. And I connected the phone to the controller and -very strange- don't have a dial tone, with or without money, can't call the phone, bells don't ring and cant go off or on hook and no reaction of the coin relay. very strange, I'm clueless. And still have no idea what that black jumper wire had done once.
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 21, 2017, 05:00:10 PM
Haf
Eventually you will have to align the top and bottom transfer contacts. Meaning EVENTUALLY you will have to take off the bottom to do it properly.
The dial not dialing the proper numbers is another problem. You might try soaking it in some sort of solvent. I use lighter fluid to clean out old oil and dirt then put a few drops of clock oil on the gear pivot points. Sometimes that works most times NOT. All depends on how much wear the dial got over its lifetime.
If the controller doesn't 'see' about 600 ohms between the red and the green leads it won't respond. If the payphone is terminating the pbx (appears to be doing that) the controller should also respond.

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 21, 2017, 05:30:22 PM
Stan,

yes I know I have to take of the bottom to align the top and bottom contacts and I will do so, no question about it. I just wanted to run some test before unmounting everything. Just for testing I will swap dials, have a proofed working #4 202 dial here. After that I will take of the bottom.
Why the controller doesn't do anything is strange, becourse it always worked fine with an AE Payphone on the same line before (but no subset needed for that payphone). And directly conected to the PBX it works except dial and with controller inbetween doesn't. but I can check that later. Another thing is, as I already wrote, connected to PBX I always get a dial tone. Don't have to deposit a Nickel first. 

Haf
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 21, 2017, 05:38:50 PM
Quote"connected to PBX I always get a dial tone. Don't have to deposit a Nickel first. "

Haf
If you are connecting the tip and ring from the subset directly to the PBX with NO controller in between you should always get a dial tone without an initial deposit. If you have the controller in between and you are getting a dial tone without an initial deposit are any of the lights on the controller lit besides the power light?
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 21, 2017, 05:48:41 PM
Stan,

my mistake, wasn't sure if so when connected only to the PBX. I thought the coin has to close contacts then too.

And about the controller, When connected to the controller I don't get a dial tone at all, Bells don't ring when phone is called, and no reaction when going off hook or on hook. Only light on the controller is the power light no matter what I do.
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 21, 2017, 06:39:14 PM
Haf
Since the controller breaks both sides of the line before the subset, the ringer wired the way it is will not work. Make sure that you have the yellow lead from the controller hooked to the screw on the switch contact of the coin relay.

Make sure that the other side of the coin relay (with both coils in series) is connected to the TIP (green lead of the controller) and the Tip side of the subset and also brought over to the Tip screw of the payphone. Yes, a two piece payphone with an external subset makes connecting the controller a little complicated.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 21, 2017, 11:58:24 PM
I couldn't sleep so I got up and changed the dial. Now I know for sure that the dialing problem was indeed a dial problem. I have a fully working phone now, I can make calls, receive calls, bells ring, receiver and transmitter quality is as expected for  1931 phone. Very nice, thank you for your help!

Now this phone only has to become a working payphone again :)

Stan,
I wired the controller like the  150 G diagram in the payphone controller instruction book. I connected the yellow wire from the controller to GND on the terminal strip as there is a wire going from there to the coin trigger switch screw. (I took some pictures, shown in my first post here) I will now align the  top and bottom transfer contacts first before any further tests.

Haf
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 08:13:21 AM
Haf
Excellent!
It should be all down hill from now on.
Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 22, 2017, 08:29:30 AM
I now took the bottom of, well, more easy than I thought, it was attached only with two tiny srews from the back. Think I will "borrow" some screws from another payphone when remouning it. Took a picture.
At the moment I'm trying to adjust the saw tooth contacts. Took pictures too.
I had to but the bottom next to the phone while working on it because there are two wires soldered to what I think is a safety mechanism I never saw before. Seems that you have to lock the vault door and then they make contact. So far, haven't located this on the diagram.

But I noticed something-  when inserting coin, only the very small lever moves from the coin relay, nothing else. I need an expert in coin relays now. Made a youtube video in slow motion showing what happens when coin is inserted.

https://www.youtube.com/watch?v=6yyBTktE6SQ&feature=youtu.be

Back at my work bench now,

Haf
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 09:40:10 AM
Haf
You're lucky that all the mounting screws weren't in the phone. Over time those screws get so tight that you sometimes have to grind off the heads to get the bottom off. The two extra wires are for the vault alarm. Most of the time that switch has been taken out of the phone. That switch assembly is very rare.
The vault alarm is on the diagram under the coin relay. Has two slate wires going to it.

After a coin is dropped in the hopper and hits the coin trigger of the relay, the trigger should stay in the down position and not flip back up. After voltage is applied to the electromagnets the armature will move either left or right and the coin trigger will flip back up. The coin trigger is what determines if the switch contacts on the right side of the relay are open or closed.

A long time ago a guy with WAY TO MUCH FREE TIME wrote an article about how Western Electric double coil coin relays works. See:

http://atcaonline.com/coinrelay.html (http://atcaonline.com/coinrelay.html)

The design of that relay is 100 years old. It's very mechanically inefficient. Lots of spring tension to overcome. Lots of metal that has to be moved and lots of adjustments that must be made for the coin relay to operate properly.

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: dsk on September 22, 2017, 10:54:58 AM
Stan; nice article!
Haf; It is not easy to tell but is contact no 1 and 2 almost touching each other?


dsk
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 11:44:14 AM
dsk
Thank you.

The double coil coin relay design is actually much more than 100 years old. It is identical to the mechanism in the Western Electric 7J coin collector. See attached.

The original patent for the Gray/Western Electric 50A 3-slot uses the same shaped coil spring assembly as the 7J. The shape of that spring assembly was abandoned after a few years. The redesigned assembly was used up until the end of the double coil coin relays. See Haf's photo.

From the picture it appears the position of the #2 saw tooth contact isn't correct. These problems seem complicated but the fix is usually very simple.

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 22, 2017, 12:34:53 PM
Maybe was only the angle, took another picture from almost inside the phone...astonishing what modern smartphones can take for pictures.
That adjusting drove me almost insane, took of the bottom about 4 times and back. Always seemed to be ok but then..when everything put back together wasn't. At least it should be ok now :)
Will put it back on the wall and then taking care of the next problem, the controller.

Haf
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 01:10:02 PM
Haf
Transfer contacts look perfect.

The coin trigger of the relay didn't appear to be working properly.

The arm that rests on the trigger is what moves the switch contacts on the right side of the frame. There's a flat spring on the left side of the switch assembly that puts pressure on the end of the arm that has the roller. When the coin trigger flips down the arm moves down which moves the arm, the roller and then the switch contacts. When the arm is down the contacts are closed. That's what connects the high voltage to the electromagnets of the relay. When the high voltage is applied to the electromagnets depending on the polarity, the armature will either return or collect the coins in the hopper. When the armature moves back to the horizontal position the coin trigger flips back up and once again supports the end of the arm after the voltage is removed. Nothing to it...........SURE!
Usually takes HOURS to get the darn things to work reliably!!

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 04:53:02 PM
Haf
Photos of the coin trigger in both positions. It's a little hard to see the difference. There is very little movement of the coin trigger in operation.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 22, 2017, 05:27:36 PM
Stan,

it seems that the arm is somehow stuck, And the spring on the left (when looking at the front of the ralay) looks a little twisted, you can see that in my pictures. I will carefully examine tomorrow. By the way, the coinrelay looks almost new, newer than  the rest.

At the moment the phone is back on the wall, works fine as "normal" phone but still don't with the controller. No dial tone, no bells ringing when called-only a short soft twitch at the beginning of the ringing cycle . But as I understood your explanation right, if the coin relay is stuck in the wrong position it's maybe permanent connected to GND or not at all, one of the two. That is why the controller is confused somehow.

But as the way it's going so far, I'm quite optimistic that I will have a working 150 G at the end. Thank you very much for your help.

Haf
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 10:14:21 PM
"it seems that the arm is somehow stuck, And the spring on the left (when looking at the front of the ralay) looks a little twisted, you can see that in my pictures."

Haf
I enlarged your picture of the front of the relay as much as was possible. I can not figure out what that twisted piece of metal is. It doesn't appear to be a part of the contact assembly. Compare your picture to the line drawing below. That twisted piece seems to be something that got caught in the switch assembly. Very carefully try and pull it out without bending any of the contact leaves or the flat spring.

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 10:37:02 PM
Haf
Just enlarged your photo on another computer. The twisted piece of metal seems to have disappeared.

It's hard to tell from the angle your picture was taken but it appears the flat spring isn't pushing against the bent part of the arm. That means the contacts aren't touching. That's the reason the controller is doing nothing and the coin trigger isn't staying in the proper position.

You will have to very carefully bend the flat spring to the right. This will apply pressure against the contact assembly, closing the contacts. This adjustment is very tricky!

WARNING! Don't do this with the controller connected. If the controller decides to fire the relay and you happen to have your fingers in the contacts, you will NOT like the result!

Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Stan S on September 22, 2017, 10:51:17 PM
Haf.
See below.
Stan S.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 23, 2017, 07:28:39 AM
Stan,
started today with my try to adjust the relay. Ok, that's th result so far:

Picture one, no coin, hard to see but no contakt between inner and outer ground contact spring. Controller shows power light only.

Picture two, coin inserted, contact between inner and outer ground contact spring, controller shows three lights, after 60 seconds jumps from return light to collect light but..no dial tone, and no firing the relay.


Ahh, and with twisted looking blade/metal I meant the coin trigger lever spring...someone has tried to bend before.

I don't know why the pictures are turned sideways...tried two times but always same result, sorry for that.

Haf
Title: Re: Problems with Gray Western 150G
Post by: poplar1 on September 23, 2017, 11:45:17 AM
Quote from: Haf on September 21, 2017, 11:58:24 PM
I couldn't sleep so I got up and changed the dial. Now I know for sure that the dialing problem was indeed a dial problem.

Haf, are you certain that the spade tip of the yellow wire was not touching the bottom contact spring on the dial?

Stan, did they make a dial cord (harness) with a longer white lead for use with a 2H, 4H or 5H dial? This cord appears to have been made for a 2A dial (Y BK BB W).

Stan's diagram shows the BB and R terminals strapped together (on the dial) when using an H dial.
Title: Re: Problems with Gray Western 150G
Post by: dsk on September 23, 2017, 11:46:01 AM
The relay is stamped 60V, usually thees are for 110V?
dsk
Title: Re: Problems with Gray Western 150G
Post by: RotarDad on September 23, 2017, 12:15:33 PM
Haf - If Poplar1 is correct about the wiring harness and H dial, that would explain why you found a jumper wire on the dial.  Stan can probably confirm, but perhaps that jumper should be reinstalled.   It would be great to have the original dial back in the phone.....
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 23, 2017, 12:36:42 PM
The original dial is back in the phone again, tested, ist just to slow, if you speed up a little with your finger ist will dial out without problems. What I don't understand, as long as wired only to my PBX everything is working, if called, bell from subset ring loud and clear. I have a dial tone when lifting receiver, can answer and make calls and going on hook again properly.
This wouldn't be the case if something i wired wrong or missing at the dial wiring, Right?

Have to go to town shop some things for weekend, will be back soon.

Haf
Title: Re: Problems with Gray Western 150G
Post by: dsk on September 23, 2017, 12:42:06 PM
Nice, and I remember that you are anlegg to tune a final.
dsk
Title: Re: Problems with Gray Western 150G
Post by: poplar1 on September 23, 2017, 03:12:29 PM
Quote from: Haf on September 23, 2017, 12:36:42 PM
The original dial is back in the phone again, tested, ist just to slow, if you speed up a little with your finger ist will dial out without problems.


You can adjust the dial speed (assuming it is not just clogged up with dirt and old oil):
See paragraph 3.15. Instead of a 260 tool, you can block the governor from moving with two screwdrivers. Loosen the governor adjusting screw, then move the adjusting arm counter-clockwise (towards F in the drawing): [F=Fast S=Slow]

http://www.telephonecollectors.info/index.php/browse/wiring-diagrams/western-electric/doc_details/2385-dials-501-162-100-tl
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 23, 2017, 03:26:06 PM
Poplar1
isn't that instruction for a 5H dial? I don't see a adjusting srew on mine. Or do I just have to turn the governor a little bit?

Haf
Title: Re: Problems with Gray Western 150G
Post by: poplar1 on September 23, 2017, 06:53:17 PM
The adjustment method is the same for a 2-type, 4-type, and 5-type dial. The screw is inside the governor. The screw needs to be near the top of the governor before you try to loosen it. Once it is loosened, you can move the adjusting arm.
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 23, 2017, 07:21:21 PM
Thank you very much, will do so tomorrow. 1:20 am, time to sleep now.

Haf
Title: Re: Problems with Gray Western 150G
Post by: Haf on September 24, 2017, 11:22:01 AM
Today I started taking a closer look at the dial. First changed the dial center card, Stan was so kind making me the one I wanted (if anyone has a WAtkns 9 original card I'm interested!). My dial plate seems to be one of the early plastic 149H dated II 37 in good shape. Now going on to adjust and oil the dial.

Keep you up to date,

Haf

p.s. still don't know why some pictures shows sideways...
Title: Re: Problems with Gray Western 150G
Post by: kleenax on February 24, 2018, 07:27:33 PM
Quote from: Haf on September 23, 2017, 07:28:39 AM
Stan,
started today with my try to adjust the relay. Ok, that's th result so far:

Picture one, no coin, hard to see but no contakt between inner and outer ground contact spring. Controller shows power light only.

Picture two, coin inserted, contact between inner and outer ground contact spring, controller shows three lights, after 60 seconds jumps from return light to collect light but..no dial tone, and no firing the relay.


Ahh, and with twisted looking blade/metal I meant the coin trigger lever spring...someone has tried to bend before.

I don't know why the pictures are turned sideways...tried two times but always same result, sorry for that.

Haf

Haf;

Just looking over this thread, and noticed the pics of your 2-coil relay. That relay is a reproduction made by Dick Pitzer, and as I recall, the "bent" magnet in them just didn't magnetize too well, and thus doesn't work as it should. It's possible that your coil is basically for looks only, and thus will never work as the electromagnet that it should. I may be wrong on these coils. Maybe Payphone Installer (Jim Engle) can help if you are still having problems.
Title: Re: Problems with Gray Western 150G
Post by: Haf on February 24, 2018, 07:56:32 PM
Ray

I know those relays are repro ones made by Dick Pitzer, the payphone once was from his collection before Mark got it. And you are right, that  relay in it didn't work at all (there was no way magnetizing new bent "magnets" so there was a small magnet attached from the back, but that wasn't the only problem). But Stan was able to modify one of those repro relays to work and send it to me. It's working fine with his controller now. I really appreciate his experience and knowledge. So everything is fine now.

Haf
Title: Re: Problems with Gray Western 150G
Post by: kleenax on February 24, 2018, 07:58:00 PM
Quote from: Haf on February 24, 2018, 07:56:32 PM
Ray

I know those relays are repro ones made by Dick Pitzer, the payphone once was from his collection before Mark got it. And you are right, that  relay in it didn't work at all (there was no way magnetizing new bent "magnets" so there was a small magnet attached from the back, but that wasn't the only problem). But Stan was able to modify one of those repro relays to work and send it to me. It's working fine with his controller now. I really appreciate his experience and knowledge. So everything is fine now.

Haf

Excellent!  It would indeed be great to hear that click-click of that relay sending coins on their way down!
Title: Re: Problems with Gray Western 150G
Post by: Haf on February 24, 2018, 08:05:03 PM
yes, everything working like should, returns and collects coins and still optical time period correct until I get a complete original one.

Haf
Title: Re: Problems with Gray Western 150G
Post by: Haf on April 26, 2018, 07:04:57 PM
Completely forgot to post a picture of the now metropolitan daisy face.

Haf
Title: Re: Problems with Gray Western 150G
Post by: Ktownphoneco on April 26, 2018, 09:19:52 PM
Haf  ....   Attached is a copy of the exchange names used throughout the Bell System.     I'm sure it's been posted before, but nonetheless, if anyone else wants a copy, here it is.   Click to enlarge.

Jeff


Title: Re: Problems with Gray Western 150G
Post by: Haf on April 26, 2018, 09:40:09 PM
I add a pdf file version for easy download. And maybe the wrong place but I'll add a picture of 1947-48 SFB Area and Berkeley, many of which are different than the MA Bell suggestions.

Haf