7603

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100 MHz non-storage mainframe
Tektronix 7603

Produced from 1973 to 1990

Manuals
Manuals – Specifications – Links – Pictures


The Tektronix 7603 is a general-purpose 100 MHz non-storage, large screen scope that takes two 7000-series vertical plug-ins and one 7000-series horizontal plug-in.

The AN/USM 281C is a ruggedized 7603 without readout (was also known as 7603N Option 11S) that includes two AM-6565 (7A15AN11) single-trace amplifiers, a TD-1085 (7B53AN11) dual time base, and a clip-on front panel cover with probes and accessories.

Key Specifications

Bandwidth 100 MHz with 7A11, 7A16, 7A17; 110 MHz with 7A19, 70 MHz with 7A18
Fastest calibrated sweep 5 ns/Div
CRT std. P31 phosphor, 8 × 10 divisions of 1.22 cm (Tek T7400/154-0640-00 tube); 15 kV acceleration (-3/+12); Option 8: P11 phosphor
CRT Opt. 4 P31 phosphor, 8 × 10 divisions of 1.0 cm (Tek 154-0672-00 tube); 18 kV acceleration
CRT Opt. 6 P31 phosphor, 8 × 10 divisions of 1.22 cm (Tek 154-0673-00 tube, spectrum analyzer graticule)
Vertical modes Left / Alt / Add / Chop / Right
Trigger Source Left / Vert Mode / Right
Inputs Z Axis
Outputs Camera power, Vert signal, +Gate, +Sawtooth
Line Voltage 100 / 110 / 120 / 200 / 220 / 240 V, +/- 10%, 50—440 Hz
Power Max. 170 W
Weight 13.6 kg / 30 lb (instrument only)
Operating Environment 0°C – +50°C, < 15,000 ft

Options

  • Opt.1: Without readout (= 7603N)
  • Opt.3: Extra EMI shielding
  • Opt.4/Opt.13: Maximum-brightness CRT with reduced area
  • Opt.5: Fan
  • Opt.6: Spectrum analyzer graticule
  • Opt.7: Without Signals Out
  • Opt.8: P11 phosphor
  • Opt.11S: Ruggedized variant AN/USM 281C, specified at 50 MHz

Internals

The 7603 was made in various versions for many years, with revisions to some subassemblies like the vertical output amplifier and HV circuits. It uses a linear power supply, a fan is optional. CRT deflection plates are not distributed. The vertical output amplifier is built around a 155-0080-00 hybrid. Other custom Tek ICs used include 155-0011-00 clock & chop blanking, 155-0022-00 channel switch, and the 7000 series readout system chips.

Prices

  Year 1973 1976 1980 1984 1990
Mainframe only Catalog price $1,600 $1,800 $2,260 $2,865 $4,235
2015 value $8,500 $7,470 $6,480 $6,510 $7,650
Mainframe with 2 × 7A18 + 7B53 Catalog price $3,520 $3,955 $5,225 $6,880 $10,315
2015 value $18,720 $16,410 $14,970 $15,640 $18,630

Links

Pictures