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Collector's Corner / Re: RTT 72 from Belgium
« Last post by Jack Ryan on Today at 08:12:24 PM »

Looks like the dial off normal springs are shorted at the connections.

Find of the Month / Re: June 2019 Tie breaker poll
« Last post by FABphones on Today at 07:58:54 PM »
Thanks guys.
The workers at Peel-Conner who put this Candlestick together would never have guessed that almost a Century later it would be considered a Find of the Month.
The phone is honoured and thanks all who voted for it.  :D
Have you got any photos for us yet Andy, it would make it easier to follow if we could see what you can see.  :)
The neon lamp sounds intriguing, I know there's different styles of lamp, but that sounds rather different... :)

As for the cabling, there are 6-pair cables available as modern stuff, a good example here:
(plenty other listings if you want to shop about, but 6.50 for 10 Metres seems decent enough for the job)

I don't know what the originals were referred to as other than the "Cable 12W" label on the N-diagram... :)
Telephone Troubleshooting and Repair / Re: SC1157 Fingerwheel
« Last post by Ktownphoneco on Today at 06:02:00 PM »
Howard  ....  The "snarky" answer would be "very carefully".   In actual fact, use a sewing needle or something that has a similar size and smooth finish.        Remove the machine screw, insert the needle at one corner of the number card containment ring in the opening created by the now removed machine screw, and lift up gently on the circular acetate window until that corner is out of the ring.    Leave the needle under the acetate window while gently moving it around the ring until the entire round acetate window is out of the number card ring.      Do the same with the number card.     Keep in mind your dealing with "old" and "brittle" material.     Yes, it may break, but removal techniques for the card and acetate window are limited and not a guarantee. 

Candlestick Phones / Re: Kellogg Candlestick
« Last post by HowardPgh on Today at 05:11:06 PM »
That is probably the most common Kellogg candlestick phone. It should be easy to find a receiver for it.  Most of them are electrically equivalent to a standard WE 20 series candlestick and can be used with a sidetone subset or a LB/magneto subset ( 3 wire cord).  Some of these have a coil in the bottom so you can use them without a CB subset. You would only need a ringer. (2 wire cord).  Nice find, condition looks good externally. The shaft is covered with a bakelite sleeve and not painted. All the works are in the base, switch and terminals etc.
Telephone Troubleshooting and Repair / Re: SC1157 Fingerwheel
« Last post by HowardPgh on Today at 05:01:02 PM »
How do you take the numbercard and plastic window out of one of these small North dials without cracking and tearing it?
The bigger North dials have a ring that barely hangs on by a  hair to hold the plastic window and card.
Collector's Corner / Re: How does a "sound powered" phone work?
« Last post by HowardPgh on Today at 04:55:54 PM »
In most any telephone circuit, the transmitted sound is alternating current.  I the sound power system the microphone generates the alternating current and directly transmits it through through the wire to the receiver.  In a local battery system,
the carbon granules are compressed by the sound vibrating the diaphragm. This compression causes their resistance to vary with the sound. Since the carbon granules are in series with a battery and the primary of an induction coil (or transformer), the varying current of this circuit causes the electric field of the primary coil to vary with the sound. This induces an alternating current in the secondary coil which is transmitted through the wire to the receiver. In a local battery system there is no DC on the lines between the telephones.  In common battery this AC is superimposed on the DC in the line (wires) that is used to power the transmitter. Since DC is fatal to receivers a capacitor (condenser) is placed in series with receiver to block the Direct current and only allow alternating current to reach it. So simple, even I could explain the theory of telephony. :D
Telephone Troubleshooting and Repair / Re: SC1157 Fingerwheel
« Last post by Ktownphoneco on Today at 03:59:41 PM »
Your welcome.    North dials are not for the faint of heart, or a short fuse on their frustration trigger.   Someone asked me to do a full service pdf for the TCI library, with pictures on the dial, which I'll post once I've had a chance to get it ready.    Just setting the pulsing speed on these dials is something very similar to performing a surgical arthroscopy, working through a slim and small sliding trap "door" of sorts, minus the video camera and sharp blades.

General Discussion / Re: Home Telephone Service.
« Last post by HarrySmith on Today at 03:22:53 PM »
 I gave up my landline when AT&T switched to fiber. First they told me my rotary phones would work with the U-Verse service which I already knew was not true. It took a while for me to find someone working there who knew what pulse dialing was! He finally verified what I already knew, thanks to the people here. I was told I could keep my landline but the cost would be around $85.00 a month! I politely declined. I think it was about $18.00 a month previously.
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