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Tektronix Type CA
24 MHz dual-channel amplifier
Type CA front view

Compatible with 500-series scopes

Produced from 1959 to 1973

Manuals – Specifications – Links – Pictures

The Tektronix Type CA is the most common plug-in for 500-series scopes. Over 50,000 were produced.

The risetime of a Type 545 oscilloscope with a Type CA plug-in is 15 nanoseconds, and the bandwidth is 24 MHz. Maximum vertical sensitivity is 50 mV/div.

Type CA is an enhancement over its predecessor, Type 53/54C, adding ADDED mode to the A, B, CHOPPED, ALT repertoire. The "A" in "CA" stands not only for the fact that it is a modified, enhanced replacement, but also because the feature added was "ADDED". It was introduced in 1959 and discontinued in 1973, making it not only the most-produced but also one of the longest-lived.

Late versions have BNC connectors instead of UHF connectors.

Lavoie Laboratories produced an unauthorized clone, the Lavoie LA-265-CA.


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