3A2: Difference between revisions
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Channel switching in ALTERNATE mode is done using diodes. The output stage that | Channel switching in ALTERNATE mode is done using diodes. The output stage that | ||
drives the vertical deflection plates of the scope uses a pair of 6BA8 pentodes. | drives the vertical deflection plates of the scope uses a pair of 6BA8 pentodes. | ||
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Image:3a2 front.jpg | |||
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Revision as of 09:39, 1 July 2010
The Tektronix Type 3A2 is a dual-trace amplifier plug-in introduced in 1963 for 560-series oscilloscopes. It was designed for compatibility with the digital unit in the 567. Bandwidth is 500 KHz. The input impedance is 47pF. Deflection factor ranges from 10mV/div to 25V/div. The input signal passes through compensated attenuators and then into a 12AT7 cathode-follower stage. Channel switching in ALTERNATE mode is done using diodes. The output stage that drives the vertical deflection plates of the scope uses a pair of 6BA8 pentodes.
