Tektronix 013-013 - Time Base Plug In Extension - Untested

Tektronix 013-013 Time Base Plug-in Extension Green | UNTESTED

Tektronix AM502 Differential Amplifier Plug-In

Tektronix Type 3B1 Plug In, Time Base, untested

Tektronix 7B90P Programmable Time Base Plug In **Parts or not working **

Tektronix 7B53A 100 MHz dual time base plug-in for 7K series oscilloscopes

Tektronix Type 3A3 Plug In, differential dual trace plug-in, untested

Tektronix 7B85 Delaying Time Base Plug-In Unit - Works