Q
The Tektronix Type Q is a transducer and strain gauge preamp plug-in for 500-series scopes.
It can work with resistive, capacitive, or inductive transducers or strain gauges that are attached via an Amphenol 165-15 connector.
The plug-in contains a 25 kHz oscillator that is used to drive a Wheatstone bridge. This AC excitation / demodulation principle limits signal bandwidth to 6 kHz.
Type Q was introduced in 1960 and was the last all-tube plug-in. It was dropped after 1972.
Specifications
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Pictures
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Front view
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Top view.
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Left view.
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Right view.
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Bottom view.
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Block Diagram
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Schematic
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Rotan plug-in prototype, likely led to Type Q
