Dynaco Stereo 70 - Bottom of Driver Board and associated wiring. - Note that the Power Take-Off sockets are not wired except for the "biaset" connection. (In order to keep hum and noise to a minimum.) The "grid stopper" resistors are arranged the way Dynaco factory-wired the Stereo 70. Also note the Spectrol 10-turn bias potentiometers and the 2 Watt resistors associated with the main B supply.
Dynaco Stereo 70 - Bottom of Driver Board and associated wiring. - Note that the Power Take-Off sockets are not wired except for the "biaset" connection. (In order to keep hum and noise to a minimum.) The "grid stopper" resistors are arranged the way Dynaco factory-wired the Stereo 70. Also note the Spectrol 10-turn bias potentiometers and the 2 Watt resistors associated with the main B supply.
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