465

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Portable 100 MHz dual-trace scope

Produced from 1972 to 1983

Manuals

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

(All manuals in PDF format unless noted otherwise)

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

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.

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

Key Specifications

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Bandwidth	DC to 100 MHz on CH1 & CH2 for -15°C to +40°C and DC to 85MHz from +40°C to +55°C
Rise time	3.5 ns for 0°C to +40°C and 4.2ns from +40°C to +55°C
Vertical Input Resistance/Capacitance	1MΩohm ±2%, Paralleled by 20pf
Maximum Input Voltage - AC Coupled	500V DC + Peak AC or 500V_p-p AC at < 1kHz
Maximum Input Voltage - DC Coupled	250V DC+ Peak AC or 500V_p-p AC at < 1kHz
Trigger Coupling Modes	DC, AC, LF Reject, HF Reject
Channel Isolation	100:1 at 25Mhz
Z Axis Input	5v p-p Signal causes noticeable modulation at normal intensity
Z Axis Frequency response	DC to 50Mhz
Output Signals	CH1 Vertical, A & B +Gate
Calibrator Output	~1kHz, 300mV, Square Wave
CRT Graticule Area	8cm X 10cm
CRT Phosphor	P31
CRT Accelerating Potential	18.5kV
Line Voltage	110/115/120/220/240 VAC ±10%,selected via primary voltage selector and regulating Range range selector assembly, 48 Hz to 440 Hz.
Power Consumption	75 W @115 VAC/60Hz

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. The CRT is part number 154-0676-10.