Electro-Mehanical Key Systems (1A1, 1A2 etc)

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Subject / Started by	Replies / Views	Last post
1A, 1A1 & 1A2 Key System Differences Started by HowardPgh	12 Replies 9479 Views	August 29, 2015, 02:44:04 PM by cello973
208 KTU's and 25 Pair Cable Started by Babybearjs	4 Replies 261 Views	November 02, 2019, 12:35:40 AM by Babybearjs
Youtube video of a large 1A2 key system and phones. Started by Weco355aman	5 Replies 556 Views	July 15, 2019, 03:06:42 PM by Key2871
1a1 1a2 schematics needed Started by RB	6 Replies 290 Views	June 20, 2019, 06:30:38 AM by RB
What have you done to make your key system.. you, or make it easier to diagnose? Started by Key2871	2 Replies 739 Views	April 07, 2019, 04:19:50 PM by Key2871
NOS WE 1A2 Ringdown Unit. (not mine) Started by HarrySmith	2 Replies 450 Views	March 07, 2019, 10:26:56 PM by Key2871
851CMW High Quality Scan of User Manual "Book" and Schematic Started by robert_m	10 Replies 620 Views	February 17, 2019, 12:08:55 PM by robert_m
On the Hunt! Started by Babybearjs	5 Replies 738 Views	December 22, 2018, 01:43:07 PM by Jim Stettler
Getting into 1A2 systems via 620A panel Started by 280Parka	3 Replies 1060 Views	July 28, 2018, 10:09:25 PM by Key2871
Hooking up a 1A2 System to a SC 1575 Started by WesternElectricBen « 1 2 »	21 Replies 3057 Views	June 18, 2018, 11:03:11 PM by rdelius
What is this WE (620A “1A2”) Key Telephone System? Started by oldguy « 1 2 »	21 Replies 1884 Views	April 17, 2018, 06:27:20 PM by rdelius
Home made electronic 1A2 unit Started by Owain	9 Replies 926 Views	March 29, 2018, 02:06:39 PM by oldguy
getting it done, right..... Started by Babybearjs	5 Replies 899 Views	March 20, 2018, 05:14:59 PM by Key2871
General DataComm Industries - Data Auxilary Set Started by AE_Collector	5 Replies 771 Views	February 19, 2018, 11:48:17 PM by AE_Collector
Wiring in a 208A KTU. Started by Babybearjs	2 Replies 851 Views	February 03, 2018, 10:26:17 PM by Babybearjs
Rosewill "Desktop" Rack Unit Started by Babybearjs	0 Replies 578 Views	January 12, 2018, 12:28:53 AM by Babybearjs
518-114-110 Page #6 PF connections and the "R" relay Started by Babybearjs	0 Replies 501 Views	November 16, 2017, 12:42:08 AM by Babybearjs
6 Line Automatic Electric 86 Started by compubit	6 Replies 851 Views	November 14, 2017, 03:36:44 PM by Babybearjs
NE-208A KEY TELEPHONE UNIT and 2564 Started by rtp129495 « 1 2 »	19 Replies 3550 Views	September 28, 2017, 12:00:48 PM by Babybearjs
Making the Jump 1A2 Western Electric. Started by digoxy118 « 1 2 3 4 »	50 Replies 4964 Views	September 13, 2017, 09:45:12 PM by Victor Laszlo

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