Early Days
The company initially focussed on provision of amplifiers for public address systems and theatres, with only a few staff. Typical designs used were similar to those found in the Partridge Public Address Manuals of the time, which used Osram's DA30 power triodes in push-pull for 45 watts output.
During the latter part of the Second World War, the company started developing amplifiers that made extensive use of negative feedback to achieve very high performance. This approach had been invented by Harold Black of Bell Telephone Laboratories in 1934, but it was slow to emerge as popular method for controlling amplifier performance.
Read more about this topic: Leak
Famous quotes containing the words early and/or days:
“If there is a price to pay for the privilege of spending the early years of child rearing in the driver’s seat, it is our reluctance, our inability, to tolerate being demoted to the backseat. Spurred by our success in programming our children during the preschool years, we may find it difficult to forgo in later states the level of control that once afforded us so much satisfaction.”
—Melinda M. Marshall (20th century)
“That woman’s days were spent
In ignorant good-will,
Her nights in argument
Until her voice grew shrill.”
—William Butler Yeats (1865–1939)