This reinforcing stages from a 1960s documentation. No information is given about the transformer and the transistor admits equivalents.
September 2016 - can already be obtained from Mouser Electronics the new CoolMOS transistors P7...
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We found...
This circuit was obtained from the 2005 manual of Linear Technology LT1306. The formulas for...