067-0502-01

From TekWiki
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Tektronix 067-0502-01
Amplitude Calibrator

Produced from (?) to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 067-0502-01 Amplitude Calibrator and Comparator is an instrument that can be used to produce a reference rectangle voltage or current waveform and/or to compare an external unknown input with an internal or external reference.

The output voltage is only accurate if terminated in 1 MΩ, the 50 V setting will experience the highest error if not properly terminated (0.5% in an open load).

The comparison is performed using an Airpax A175 chopper to switch between the two voltages that are being compared. The resulting output is a rectangular waveform with amplitude equal to the difference of two voltages. This waveform can be amplified using a drift-free AC amplifier and viewed on an oscilloscope for high sensitivity comparison.

See the 067-0502-00 page for a comparison of the -00 and -01 models.

The HV supply uses a tube V427, to regulate the +300V supply. The manual lists V427 as a 7734, a triode-pentode, however some models contain a small circular adapter board (670-1860-00, 388-2423-00) to adapt the noval tube socket to a Compactron socket and use a 6G11 double pentode instead. The adapter PCB connects the screen grid and plate of the beam power tube together in a triode configuration. These models also have 6G11 printed below V427 on the chassis.

The output amplitude can be reduced down to 0.2 μV using the 067-0529-00 1000:1 precision divider.

Key Specifications

Output DC+, DC-, Squarewave
Amplitude range 0.2 mV to 100 V in 1-2-5 sequence, 5mA in current loop
Amplitude accuracy Within 0.25% into 1 MΩ load
Squarewave repetition rate 1 kHz within 20%
Maximum input voltage 100 V

Links

Pictures


Some Parts Used in the 067-0502-01

Part Part Number(s) Class Description Used in
6G11 154-0660-00 Vacuum Tube (Pentode) double sharp cut-off beam power pentode 125 132 519 067-0502-01 050-0551-00