7B50
The Tektronix 7B50 is a timebase plug-in for 7000-series scopes, particularly the 7500 series. It is specified for triggering up to 100 MHz. Triggering uses tunnel diodes. The sweep is fully discrete, no ICs. There is a 7B50 and a 7B50A.
The task of designing the 7B50 was inherited and completed by Murlan Kaufman.
Key Specifications
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X-Y operation
The 7B50 has a dedicated switch to put it in "amplifier mode" for X-Y operation. In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling. In amplifier mode, gain can be varied using an uncalibrated potentiometer.
Pictures
7B50
7B50A
7B50A
7B50A bottom
7B50A rear
7B50A top
7B50
7B50
Custom ICs used in the 7B50
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Custom ICs used in the 7B50A
| Page | Class | Manufacturer | Model | Part nos | Description | Designers | Used in |
|---|---|---|---|---|---|---|---|
| 155-0109-00 | Monolithic integrated circuit | Tektronix | M120B | 155-0109-00 • 155-0109-01 | trigger | Gary Vance | 5B25N • 5B31 • 5B40 • 5B42 • 5B44 • 5S14N • 7B50A • 7B53A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P • 7S14 • 7612D • SC502 • SC503 • SC504 |
| 155-0126-00 | Monolithic integrated circuit | Tektronix | M121 | 155-0126-00 | trigger source selector and P-P auto amplifier | Art Metz | 7B50A • 7B80 • 7B85 • 7B87 • 7B81P • 7B90P |