The Tektronix 7A26 is a 200 MHz dual-trace vertical plug-in for 7000-series scopes.
Designed by Tom Rousseau, it was the most successful 7000 series plug-ins, with over 120,000 units produced.
The 75 MHz 7A18 and 400 MHz 7A24 share the same front panel layout and operation.
|| 200 MHz
| Input impedance
|| 1 MΩ
| Deflection factor
|| 5 mV/Div – 5 V/Div in 1–2–5 sequence
|| Bandwidth limiting switch (20 MHz)
Controls layout and internal construction is very similar to the 75 MHz 7A18.
Whereas the 7A18 is a discrete design, the 7A26 uses Tek-made differential amplifier ICs
The 7A26 does not use the ±50 V supplies provided by the mainframe.