* 10-LOT *

"New" - Old Stock

AT&T / Motorola®
LB1060AB
DUAL BILATERAL SWITCH I.C.
"Able to Survive a 10 Amp Lightning Surge"

Made by Motorola for AT&T.

Originally Used By Telephone Companies as a
Telephone Loop Termination Switch to Remotely
Diagnose Phone Line Problems Reported By Subscribers.

A Dual Bilateral Switch I.C. with "Surge Protection" In An 8-PIN DIP Package.
These LB1060AB I.C.’s are very “Rare" these days and prized by Electronic
Technicians and Hobbyists for their use as "Two Totally Independent Switches", which can be used Together or Separately. Ideal for many kinds of Security applications and interfaces, including Telephone Diagnostics, as well as for
 many "Non-Telephone” applications limited only by the User’s imagination.
"Each Switch can Survive a 10 Amp Lightning Surge"

The LB1060's Many Non-Phone Uses Include:

*   A Simple Generator for Sawtooth and Pulse Waveforms, 
*   Low-Voltage LED Flasher
*   Power Supply Crowbar
*   Over-Voltage Detector
*   Simple Memory or Latch
*   Analog Switch
*   Digital Switch
*   Lamp Flashers
*   Doorbell Circuits
*   Alarm System
*   AM Radio Alignment Generator

The LB1060 contains two Totally Separate "Bilateral Switches". In operation, each switch will normally remain off.  The Switches will Independently  snap “ON” (make contact) when an Input voltage is present and exceeds 17 Volts, and will snap "OFF" when its current drops under 3 ma.  Because of this automatic switching due to certain Voltage and Current conditions, and the fact that the 1060 can take Much Higher Voltages than common bilateral switches such as the CMOS varieties 4016 and the 4066. Both of these CMOS bilateral switches would require Additional Circuitry and Parts to emulate the 1060, but even so, "They are still limited to relatively Lower Voltages than the LB1060".

These LB1060AB I.C.’s were  reputedly Highly Restricted to Telephone Company Uses Only.  Highly Restricted probably because the AT&T 1060 is cherished by phone phreakers due to the fact that they could (and still can) interface many different types of circuits to phone lines for their own various phone applications and experiments, including other Non-Phone application circuits they can put together themselves.

For more information on this LB1060AB I.C., please refer to, and Enjoy Reading one of  Don Lancaster’s legendary Tech Musings articles in PDF format, which includes a few sample Non-Telephone Circuits you can try ( to get you started), along with the details of how the Phone Company used the LB1060 to remotely troubleshoot customer’s phone lines.

Just Copy & Paste the following URL into your web browser’s address bar and enjoy:

                    https://www.tinaja.com/glib/muse96.pdf

AND, To Download a copy of the LB1060AB Data Sheet, Copy & Paste the following URL into your web browser’s address bar and Scroll Down a few inches when you get there:

https://www.datasheetarchive.com/pdf/download.php?id=bc3fa97eb1243607c7b7412eeee162f56b7721&type=O&term=LB1060

NOTE: