Telequipment D83

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Telequipment D83
50 MHz scope
Telequipment D83

Produced from (?) to (?)

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

The Telequipment D83 is a 50 MHz CRO. It is a larger-screen, upright version of the Telequipment D75.

The D83 takes two plug-ins that are also compatible with D75, D63 and DM63. Vertical plugins include the V4 dual trace amplifiers, the V3 single channel differential amplifier, the V1 single channel amplifier, and the V5 single channel amplifier with delay line (primarily intended for the DM63/D63 mainframes that have no built-in delay lines, whereas D75/D83 do). Timebase plugins include the S1 single timebase and S2 dual timebase.

NB There's a chance of some confusion with the input specs below. While the service manual states input impedance, that's for the Z modulation on the main frame. This text will be removed once the specs for the plug-ins (see above) are made available on their own pages. The weight stated in the various documentation (service manual, operator manual, catalogue, etc) differs, too.

Key Specifications

Bandwidth DC Coupled DC to 50 MHz (−3 dB) and AC Coupled 2 Hz to 50 MHz (−3 dB)
Risetime 7 ns
Deflection 5 mV/div to 20 V/div in 12 calibrated steps (1−2−5 sequence)
Timebase 2 s/div (B: 1 s/div) ) to 100 ns/div, 1−2−5
Input impedance 1 MΩ // 29 pF
Max. input max. 400 V DC + AC peak
Trigger modes A: Auto, DC, AC, HF Reject; B: Auto, AC
Trigger Sources CH1, CH2, Alternate
Operating modes CH1, CH2, CH1/CH2 Alt, Chopped, CH1 and CH2 added, CH2 inverted
Sweep modes A only, A intensified by B, B delayed by A, A and B mixed, delayed B variable or triggered, repetitive or single shot
Delay time 10 μs to 20 s
Calibrator ~1 kHz, 30 mV and 300 mV, 3 mA, square wave, ±1% voltage and current, ±20% frequency
CRT 154-0640-05 tube, P31 phosphor, 15 kV acceleration, 8 × 10 graticule, 1.2cm per division
Power 100 V − 125 V in 5V steps, 200 V − 250 V in 10 V steps, selected via primary voltage selector, 48 Hz to 400 Hz, 85 VA
Dimensions Height: 290 mm, Width: 215 mm, Depth: 520 mm
Weight 9.5 kg
Weight with plug-ins 14 kg
Temperature limits Operating: +5°C to +40°C, Non-operating: -25°C to +70°C

Links

Internals

The CRT in the D83 is the 8×10, 1.22 cm/Div Tektronix T7400-31-2, also used in the 7603.

Pictures