468

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Tektronix 468
10/100 MHz Digital Storage Scope
Tek 468

Produced from 1980 to 1985

Manuals
ROM Images
File Pos. Checksum
067-0989-00.bin Service (repl. U565) e7a227f3
160-0459-01.bin U565 5d9decc9
160-0759-01.bin U575 65850940
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 468 is a digital/analog scope, essentially a 465B with an added 25 MS/s 8 bit digitizer. The 468 uses the 154-0731-00 CRT.

The 468 is controlled by an Intel 8085A processor.

Key Specifications

Bandwidth 100 MHz analog, 10 MHz digital repetitive, 2.5 MHz digital single-shot
Deflection 5 mV/Div to 5 V/Div, 1–2–5; CH1-CH2 cascaded – 1 mV/Div, 50 MHz
Sweep 20 ns/Div to 50 ms/Div (B) or 500 ms/Div (A), 1–2–5, ×10 magnifier to 2 ns/Div
Sampling rate 25 MS/s
Resolution 8 bit
Input impedance 1 MΩ // 20 pF
Power 90–210 V, 108–132 V, 198–242 V or 216–250 V; 48–440 Hz
Dimensions 18.3 cm × 29.2 cm × 55 cm (H×W×D)
Weight 15 kg (33 lb)
Options
  • Opt.02 − GPIB (A17 board)
  • Opt.04 − (Not sure yet - seen on a scope - Opt 4 on a 465B is EMI shielding)
  • Opt.05 − TV Sync Separator (A29 board)
  • Opt.11 − Analog X-Y/Plotter Output (A27 board)
  • Opt.A2 − (Not sure yet - probably variant GPIB - seen on a 468 scope)

Repair issues

→ see 468/Repairs page

Links

Pictures


CRTs used in the 468

Page Part nos Description Designers Used in
154-0731-00 154-0731-00 154-0731-01 154-0731-02 154-0731-04 CRT Telequipment D75 455 465 465B 468

Custom ICs used in the 468

Page Model Part nos Description Designers Used in
155-0022-00 M036 155-0022-00 155-0022-01 analog multiplexer Gene Andrews 147 148 149 335 468 1430 1441 1461 1900 1910 2220 2221 2230 5223 5403 5440 5441 5443 5444 5A38 7313 7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 R7912 7912AD 7912HB 7904 R7903 7904A 7934 7A12 7A18 7A18A 7A18N 7B52 7B53N 7D10 7D11 7D12 NT-7000 P7001
155-0078-00 M084 155-0078-xx 155-0273-00 155-0274-00 broadband amplifier John Addis 464 465 466 468 475 475A 475M 485 7834 7844 7854 7904 R7903 R7912 7912AD 7912HB 7104 7A16A 7A16P 7A24 7A26 7A42 067-0587-01 067-0680-00 AM503 PG502 PG508 DC510 DC5010 FG5010
155-0115-00 155-0115-00 155-0115-00 vertical amplifier 335 464 465 465B 466 468