067-0587-01

The Tektronix 067-0587-01 Calibration Fixture is designed to standardize the horizontal and vertical deflection factors of 7000 series mainframes. It provides a uniform step calibrated deflection factor, a fast risetime step response function and a common-mode input test for both the vertical and trigger systems. It is the successor of the 067-0587-00 and the predecessor of the 067-0587-02.

Manuals – Specifications – Links – Pictures

Key Specifications

	— GAIN mode —
Staircase accuracy	± 0.3% with no error in mainframe ±50 V supply
	— STEP RESP mode —
Amplitude	>8 Div
Rise time	< 300 ps
Repetition rate	10 Hz to 1 MHz in decade steps, within 20 % of rate selected
Pretrig Out	unspecified
	— FREQ RESP mode —
Input impedance	50 Ω
Input range	0.5 to 1 Vp-p
Flatness	leveled from 3 MHz to 500 MHz

Internals

It uses one custom Tektronix IC, the common 155-0078-00. The manual calls it a high frequency push-pull amplifier.

It uses one tunnel diode, the 152-0177-00, a 10 mA, 4 pF diode in a DO-17 package. It also uses 12 Tektronix custom Schottky diodes, part 152-0442-00 (speced as matched pairs) in the tunnel diode pulse shaper and in the CW peak-to-peak detector. The service manual calls them "disconnect diodes", physically they look like snap-off diodes found in other Tektronix fast risetime pulsers. Note that there is a typo in the service manual for CR80, CR84, and CR85 in the peak-to-peak detector.

Links

• 067-0587-02 page @ amplifier.cd (comparing -01 and -02, lots of pictures, text in German)
• Tektronix Calibration Fixtures and Standardizers For 7K Frames @ Zenwizard Studios YouTube

Pictures

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Custom ICs used in the 067-0587-01