The
Williamson Amplifier
by D. T. N.
Williamson
CONTENTS
Basic Requirements:
Alternative Specifications;
Details of Chosen Circuit and Its Performance;
Design Data:
Modifications:
Further Notes;
Design of Tone Controls and Auxiliary Gramophone Circuits;
Design for a Radio Feeder Unit;
Replies to Queries Raised by Constructors;
Modifications for High-impedance Pickups and Long-playing Records
Partridge 2W Battery Amplifier Design;
Partridge 6W A.C.-D.C. Amplifier Design;
Partridge 12W P.A. Amplifier Design;
Partridge 12W Quality Amplifier Design;
Partridge Economy 28;
Partridge 30W Amplifier Design;
Partridge 45W Amplifier Design;
Partridge Two-Stage Pre-Amplifier Design;
Notes on Amplifier Construction