The Tektronix Type 1A6 is a low-cost differential plug-in for 500-series scopes.
A replacement for Type D, it senses down to 1 mV/div at 2 MHz bandwidth, with 10,000-to-1 common-mode rejection to 100kHz and +/-15V common-mode range.
The 1A6 was designed by technician Vaughn Weidel, based on Type 1A7. The input stage is a matched pair of 8393 Nuvistors, and the front panel is styled like Type 1A5. Unlike Types W and 1A7, Type 1A6 was never converted to FET input.
|Deflection||1 mV/Div to 50 V/Div in 1–2–5 sequence|
|Input impedance||1 MΩ // 33 pF (either input)|
|Bandwidth||2 MHz, AC coupling 2 Hz|
|CMRR||10000:1, DC to 100 kHz, 1mV/Div to 50mV/Div|
|Range||Common mode dynamic range|
|1 mV/Div to 50 mV/Div||±15 V|
|0.1 V/Div to 0.5 V/Div||±150 V|
|1 V/Div to 50 V/Div||±500 V|