TY  - BOOK
AU  - Smith, Sydney F.
TI  - Telephony and Telegraphy A: An Introduction to Instruments and Exchanges
SN  - 0198593465
U1  - 621.385 21
PY  - 1974///
CY  - Bristol
PB  - BAS Printers
N1  - Table of contents
 
preface

Chapters

1. Telephones and Teleprinters

2. Relays

3.Signalling

4. Switching Systems

5. Strowger System- Selector Mechanism

6.Strowger System- Selector Circuits

7.Traffic and Trunking

8. Distribution Frames

9. Exchange Power Plant
ER  -