The Jennings Univox
Production numbers, model by model
A provisional overview of the numbers of Univoxes made, model by model, 1950s to mid 1960s. The main pages on the Univox in early days can be found here:
J5: spring 1952 to spring 1953, probably no more than 100 made, serial number sequence beginning at 600.
J6: spring 1953 to the mid 1960s, around 3600-3700 made, serial number sequence beginning at 100.
J7: spring 1953 to the mid 1960s, around 1300-1400 made, serial number sequence beginning at 100.
J10: spring 1954 to the mid 1960s, around 400-500 made, serial number sequence beginning at 100.
Thanks to Martin for his notes on surviving examples and numbers. Univox J6s were evidently made and sold by Jennings in far greater numbers than its lower-powered amplifiers - the AC1 (of late 1960); AC2/AC4; and AC6. Sales of the AC10 surpassed the J6 only by a few hundred.
Total sales of all models of Univox exceeded the AC10, AC15, and AC100 individually by some margin.
Examples of plates
Univox J5 serial number 664.
Univox J6 serial number 229. A slightly different type of plate.
Univox J7, serial number 603.
Univox J10, serial number 182.