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#1
General Discussion / Re: What is a Western Electric...
Last post by MMikeJBenN27 - Today at 04:38:10 PMThis is one of the variations of the B mount. They differ from the B1 in having a second switch on the opposite side, additional terminals, etc. Check out the wiring diagrams on this sight, and on the TCI library. They have all the variations with diagrams.
Mike
Mike
#2
Technical "Stuff" / Re: Leich100 ringer question
Last post by RotoTech99 - Today at 04:22:37 PMHello, I finally got my Leich 105C to ring using a C4A RINGER:
After cutting the hole for the volume control and mounting the ringer, I did the following:
1. Wired the red and black ringer leads to L-1 and L-2.
2. Connected the ringer's slate and slate/red leads to RC & G.
3. Added .47 uF, 275 VAC capacitor to RC and G.
4. Tested, results were successful
Rototech99
After cutting the hole for the volume control and mounting the ringer, I did the following:
1. Wired the red and black ringer leads to L-1 and L-2.
2. Connected the ringer's slate and slate/red leads to RC & G.
3. Added .47 uF, 275 VAC capacitor to RC and G.
4. Tested, results were successful
Rototech99
#3
Auction Talk / Re: Interesting data phone on ...
Last post by HarrySmith - Today at 03:18:56 PMThat is a good example of the color change that occurs with plastics. It would be a great candidate for color restoration.
#4
Auction Talk / Interesting data phone on ebay
Last post by 5415551212 - Today at 01:39:37 PMI know some of you are into these 'data phones', spotted this one ending today with no bids, perhaps the seller will re-list with a lower price?
https://www.ebay.com/itm/257346628393
How did these work? is this a modem? Was this for the 'big iron' era of main frames and 'mini' computers?
or was this just for connecting your BBC micro, VIC-20, TRS-80 to CompuServe or a dialup BBS?
https://www.ebay.com/itm/257346628393
How did these work? is this a modem? Was this for the 'big iron' era of main frames and 'mini' computers?
or was this just for connecting your BBC micro, VIC-20, TRS-80 to CompuServe or a dialup BBS?
#5
VOIP, Asterisk, C*NET, NPSTN, XLink, etc / Re: 4 wire (600 ohm) VoIP adap...
Last post by 5415551212 - Today at 12:48:14 PMQuote from: leejor on Today at 11:43:49 AMI had worked with a lot of 4-wire circuits during my career. Usually it was used when long(er) distances were involved as it was easier to amplify when the audio was going in one direction. But, I've seen it used on trunks from a PBX to a central office, if requested by the customer. It was also easy to interface to channel bank cards designed for this.Interesting, thanks for sharing,
There are (or, at least, used to be) 4-wire to 2-wire converter cards, that are meant to interface to either a phone line, or a telephone set. Something like that could then connect to an ATA, or Gateway device.
I used to have documentation on devices like that , unfortunately, at the moment all that is in storage, for another year or so, so not readily accessible. As technology like 4-wire circuits continue to be phased out in favour of digital (VoIP), there will be less and less of this equipment available without people going out of their way to rescue it from the junk heap.
I imagine up in Canada you'd need to cover some distances.
I am pretty sure 4-wire E&M analog circuits (3-pair) were replaced here (by the 1990's) with digital 4-wire T1/PRI T1/BRI (2-pair)
but now I am curious about the distance thing.
What would be a cutoff distance from the CO where you say lets go to a 4-wire?
Cheers
--Stephen
#6
Collector's Corner / Re: Western Electric 500 serie...
Last post by HarrySmith - Today at 12:20:52 PMI just came across this picture on the web of President Kennedy & Caroline in the oval office. Thought you might like it.
#7
VOIP, Asterisk, C*NET, NPSTN, XLink, etc / Re: 4 wire (600 ohm) VoIP adap...
Last post by leejor - Today at 11:43:49 AMI had worked with a lot of 4-wire circuits during my career. Usually it was used when long(er) distances were involved as it was easier to amplify when the audio was going in one direction. But, I've seen it used on trunks from a PBX to a central office, if requested by the customer. It was also easy to interface to channel bank cards designed for this.
There are (or, at least, used to be) 4-wire to 2-wire converter cards, that are meant to interface to either a phone line, or a telephone set. Something like that could then connect to an ATA, or Gateway device.
I used to have documentation on devices like that , unfortunately, at the moment all that is in storage, for another year or so, so not readily accessible. As technology like 4-wire circuits continue to be phased out in favour of digital (VoIP), there will be less and less of this equipment available without people going out of their way to rescue it from the junk heap.
There are (or, at least, used to be) 4-wire to 2-wire converter cards, that are meant to interface to either a phone line, or a telephone set. Something like that could then connect to an ATA, or Gateway device.
I used to have documentation on devices like that , unfortunately, at the moment all that is in storage, for another year or so, so not readily accessible. As technology like 4-wire circuits continue to be phased out in favour of digital (VoIP), there will be less and less of this equipment available without people going out of their way to rescue it from the junk heap.
#8
General Discussion / Re: What is a Western Electric...
Last post by paul-f - Today at 10:49:04 AM(also answered at TCI)
There are some good references on B-type mountings including the B2 in the TCI Library.
Here's a good place to start: https://www.telephonecollectors.info/index.php/search?q=spec+4810+1927
There are some good references on B-type mountings including the B2 in the TCI Library.
Here's a good place to start: https://www.telephonecollectors.info/index.php/search?q=spec+4810+1927
#9
Technical "Stuff" / Re: Leich100 ringer question
Last post by TelePlay - Today at 09:24:43 AMActually, if using a C4A ringer, connect the slate and slate/red wires together.
Then connect ringer black to L1 and connect ringer red to RC.
The capacitor connects remain as shown on the diagram.
Then connect ringer black to L1 and connect ringer red to RC.
The capacitor connects remain as shown on the diagram.
#10
Technical "Stuff" / Re: Leich100 ringer question
Last post by TelePlay - Today at 09:02:42 AMThe diagram you provided shows a 2 wire ringer.
A C4A is a 4 wire ringer, red, black, slate and slate red.
You need to wire in the C4A ringer to create a ring circuit that goes from line to ringer to capacitor to line, the capacitor in series with the ringer.
A C4A is a 4 wire ringer, red, black, slate and slate red.
You need to wire in the C4A ringer to create a ring circuit that goes from line to ringer to capacitor to line, the capacitor in series with the ringer.