Topic Options
Rate This Topic
#547654 - 03/13/13 03:48 PM 425 style network
godfather Offline
Member

Registered: 12/24/07
Posts: 69
Loc: Northern NJ
I have an old call box style phone that has a 425 style network in it. The call box was made by the Gamewell Company, but all of the telephone parts were sourced from telephone manufacturers.

The only markings on the network are "NET-P-75335" and the date code "9-68"

Does anyone have an idea who might be the manufacturer? Perhaps Kellogg or ITT?

Top
Google Telephone Equipment Search
#547674 - 03/13/13 05:26 PM Re: 425 style network [Re: godfather]
Touch Tone Tommy Offline
Moderator-Avaya-Lucent, Antique Tele
*****

Registered: 07/15/01
Posts: 2992
Loc: Paso Robles, CA
I recall that 75335 is an ITT part number.

Top
#547678 - 03/13/13 05:34 PM Re: 425 style network [Re: Touch Tone Tommy]
Arthur P. Bloom Offline
Member
*****

Registered: 09/20/06
Posts: 2920
Loc: Shelter Island, New York
C L I C K

See pages 3 & 4.
_________________________
Arthur P. Bloom
"30 years of faithful service...15 years on hold"

www.wiringenclosures.com

Top
#547741 - 03/14/13 09:26 AM Re: 425 style network [Re: godfather]
godfather Offline
Member

Registered: 12/24/07
Posts: 69
Loc: Northern NJ
THANK YOU!

I'll post a photo of this call box when I get a chance.

It is a pretty interesting device. The top part has a coded telegraph unit (pull for fire) and the bottom half has a telephone. There were two versions - one had the telephone for public access and the other had a locked door so that the telephone was only available for use by police and emergency personnel.

Here's some information from the patent:

http://www.freepatentsonline.com/3009023.pdf




Top
#547742 - 03/14/13 09:28 AM Re: 425 style network [Re: godfather]
jeffmoss26 Offline

Member
*****

Registered: 12/17/02
Posts: 7820
Loc: Beachwood, OH
That thing looks really neat!
_________________________
Jeff Moss

Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE

Top
#547748 - 03/14/13 10:39 AM Re: 425 style network [Re: godfather]
godfather Offline
Member

Registered: 12/24/07
Posts: 69
Loc: Northern NJ
It was pretty clever for the time.

Originally they needed 4 wires. One pair (usually 14 AWG) for the closed circuit telegraph loop (72 to 105 VDC) and the other pair for the telephone circuit.

Later on the design was changed to allow the telegraph and telephone circuit to use the same pair of wires.

Top

Moderator:  Touch Tone Tommy 
Refurbished Phones & Equipment Search
TARGETED LEADS for IT-Telephone Installers, System Installation & Phone System Sales!
Instant Access to Telecom Leads
Technician Search, enter State or Zip Code
Shout Box

FREE DESI Labeling System Software!
FREE DESI Labeling Software - Click Here!
Most Recent 5 Post
DK-280 Call on hold reminder
by DD782
Today at 12:08 AM
Ext says "Extension Vacant"
by AdamAnt
Yesterday at 05:19 PM
VCH 18D euro 1
by Thornhil
Yesterday at 04:38 PM
Installer Requested in MA
by mickeyme
Yesterday at 01:19 PM
Remote Access to CIX40 and GVPH
by Gilles
Yesterday at 01:17 PM
Who's Online
13 registered (Skunky, Carlos#1, Mercenary Roadie, dexman, phoneguywayne, davetel, 5years&counting, DD782, Yoda, KRRath, justbill, AdamAnt, 1 invisible), 290 Guests and 340 Spiders online.
Key: Admin, Global Mod, Mod
Tech Support Line 1.800.766.3425
Over the Phone Tech Support for your Phones and Business Phone Systems
(Views)Popular Topics
Ask the person below you a game. 6666545
Pictures of ugly work II 4559645
Just for Jokester #12 1448142
Just for Jokester #13 1183722
Just for Jokester #14 828733
New Members: Post Here 824596
Constructive Criticism 757051
Pictures of Ugly Work IV 754968
Just for Jokester #11 589263
So let's Play a Game "Who am I ?" 572685
Newest Members
LandT, billpq, Norm, tomnationwide, AdamAnt
47614 Registered Users
Forum Stats
47614 Members
58 Forums
87487 Topics
600447 Posts

Max Online: 4713 @ 04/02/14 11:57 AM
Today's Birthdays
kevitosc, MJK
Top Posters (30 Days)
justbill 36
dexman 33
Rcaman 26
OBT 22
Derrick 19
Coral Tech 18
nameless 18
hbiss 17
hitechcomm 15
usedphones 14
Custom Island #2 for sale only $289
Custom Island #3 for sale only $289
Custom Island #4 for sale only $489
Free Phone Repair Diagnostic
Amazon

Contact Us | Telephone System Tech Support | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
ęCopyright Sundance Communications 1998-2016




Trusted Partners
Sitemap