Become a member of our Forum, and gain access to a lot more information!
Become a member of our Forum, and gain access to a lot more information!
|
This is very important information. We know from this information Floyd used a Square wave on his input in the early Generation Two VTA. Floyd Sweets VTA 6 Watts Generation 1:
The HP 211A Square Wave Generator
The last evolution in the 50s of the signal sources product line would be the 211A square wave generator introduced in the Hewlett-Packard Journal, May, 1955, volume 6, number 9. Main specifications were: Continuous frequency coverage from 1 cps to 1 mc. Output 7 Volts across 75 ohms or 55 Volts peak-to-peak across 600 ohms with a rise time of 20 milli micro seconds (as noted in the specifications listing - Rise time value expressed in nanoseconds was not yet a current practice in 1954) Thanks to a long time VTA Replication project supporter for this information.
|
