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* -90 Vdc at 0-20mA, 1mV ripple, tube-based regulation | * -90 Vdc at 0-20mA, 1mV ripple, tube-based regulation | ||
* -6 Vdc at 0.7-4A, 4mV ripple, transistor-based regulation | * -6 Vdc at 0.7-4A, 4mV ripple, transistor-based regulation | ||
The +135V section contains an [[OG3]] voltage reference tube. | |||
The -90V and -6V sections use the +135V supply as their reference. | |||
All power rectification is done with semiconductor diodes. | |||
[http://bama.edebris.com/download/tek/122_125/Tek%20122_125.pdf Tektronix 122 and 125 Manual] | [http://bama.edebris.com/download/tek/122_125/Tek%20122_125.pdf Tektronix 122 and 125 Manual] |