3A72

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The Tektronix 3A72 is a two-channel amplifier designed for use in the 561 and 565.

Prior to serial number 1420, the 3A72 was called the Type 72. The 3A72 documentation applies to the 72.

Key Specifications

Bandwidth	DC to 650 kHz
Deflection	10 mV/div to 20 V/div
Input impedance	1 MΩ // 47 pF

Pictures

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Type 72

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  From 1961 catalog.