Pye combined signal generator (110 KHz - 50 MHz) and component measuring bridge, c. 1950 Pye combined signal generator (110 KHz - 50 MHz) 1950
Devices signal generator, 1950-1970. Acquired from Mr. C. Pelling from the Department of Physiology at Queen Mary College, use not specified. Devices signal generator 1950-1970
Audio frequency sine/square wave signal generator type E1 sertrs no. 4219 by Advance Components Ltd., Hainault, Essex, England, covering 15Hz - 50kHz in three ranges Audio frequency sine/square wave signal generator type E1 sertrs no. 4219 1940-1950