465

Note: The Tektronix 465M scope has its own page.

Tektronix 465

Portable 100 MHz dual-trace scope

Tektronix 465 front

Produced from 1972 to 1983

Manuals

465

465 + DM44 Operator (OCR PDF, 4M)
465 + DM44 Operator (2)
465 Service (OCR PDF, 3M)
465 Service (PDF) / TIF version (non OCR)
465 Service B250000+ (OCR PDF, 44M)
465 Service B250000+ (Color OCR PDF, 58M)
465 Option 5 Supplement (PDF)

465B

Modifications

040-0968-01: 465 Opt.7 External DC Operation (1982)
040-0814-02: Installation of DM44 on 465 B052300 - B251074
040-0815-01: Installation of DM44 on 465 B251075 & up
040-0944-00: Installation of DM44 on 465B
050-1627-00: S1150 (Time/cm switch) replacement

History

Tektronix 465 and 475 Marketing Sales Release (PDF)

Manuals – Specifications – Links – Pictures

The Tektronix 465 is a portable 100 MHz dual-trace oscilloscope with dual time-bases. The 465 was very popular and Tek made them for quite a few years. It is all solid-state except for the CRT. It was introduced in November 1972.

There was no 465A but a 465B (int. 1980) with the same base specs but improved performance. The 475 is a 200 MHz sister model. See also 465M.

The optional DM44 multimeter attaches to the top of the instrument.

Bill Turner worked as a calibration technician for the 465 oscilloscope group.

Specifications

Bandwidth	DC to 100 MHz on CH1 & CH2 for −15°C to +40°C and DC to 85 MHz from +40°C to +55°C
Rise time	3.5 ns for 0°C to +40°C and 4.2 ns from +40°C to +55°C
Input Impedance	1 MΩ ±2% // 20 pF
Input Voltage	max. 500 V DC (250 V_DC when DC coupled) + Peak AC or 500 V_p-p AC at < 1 kHz
Trigger Coupling	DC, AC, LF Reject, HF Reject
Channel Isolation	100:1 at 25 MHz
Z Axis Input	DC to 50 MHz; 5 V_p-p signal causes noticeable modulation at normal intensity
Output Signals	CH1 Vertical, A & B +Gate
Calibrator	~1 kHz, 300 mV, square wave
CRT	154-0676-10 tube, P31 phosphor, 18.5 kV acceleration, 8 cm × 10 cm graticule
Line Voltage	110/115/120/220/230/240 V_AC ±10%, selected via primary voltage selector and regulating range selector assembly, 48 Hz to 440 Hz
Power Consumption	75 W @ 115 V_AC / 60 Hz

Internals

The 465 uses tunnel diodes with Tek part number 152-0125-00, which are equivalent to TD3A, and 155-0032-00 chips (their -01 grade) as trigger amplifiers.