2465B: Difference between revisions

Revision as of 17:23, 8 August 2019

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Portable 200/250/400 MHz 4-ch scope Tektronix 2465B Produced from 1989 to (?) Manuals 2445B/2455B/2465B Operator 2467B Operator -00 2467B Operator -01 2467B Operator -02 2445B/2455B Service 2465B/2467B Service -00 2465B/2467B Service -01 2465B/2467B Options Service 2445B/2455B Service 2445B/2465B/2467B Quick Start (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 2465B is a four-channel 400 MHz portable oscilloscope.
The 2445B and 2455B are 200 and 250 MHz versions.
CRT is the 154-0850-01.

The 2466B is a 4-channel 400MHz Sony/Tektronix model released in Japan, using a smaller CRT run at higher cathode voltage to give a brighter display to aid in photographing waveforms. It is not an MCP CRT.
The 2467B is the same as the 2465B, except that the 2465B uses a conventional CRT while the 2467B uses a micro-channel plate CRT. The MCP CRT enables bright traces at fast sweep rates, particularly with one-shot or low repetition rate signals.

The 2465B is from the penultimate generation of analog Tektronix scopes.

The horizontal amplifier in the 2465B was designed by Art Metz and Ken Schlotzhauer. Art Metz also worked on the triggers. Art Metz and Walt Ainsworth designed the sweeps.

Options

Option 01 (DMM) added a 4½-digit, fully autoranging digital multimeter which measures DC and AC voltage and current, resistance, dBV, dBm, continuity, and temperature.
Option 05 (TV) added TV (back-porch) clamp circuitry to the Channel 2 input and TV trigger coupling modes, allowing selection of either horizontal or vertical sync pulses to obtain horizontal-line-sync or field-sync pulse triggering.
Option 06 (Counter/Timer/Trigger) allows precision time-interval measurement, event and frequency counting, delay-by-events triggering, and logic triggering.
Option 09 added option 06, the CTT, plus a 17-bit P6407 word recognizer probe.
Option 10 added a GPIB interface for remote control.
Option 11 added two probe-power connectors on the rear panel of the instrument. Only shown in the 1989 catalogue.
Option 46 is the designation for the military version of the scope (OS-288/G) that included option 10 IEEE-488 interface and 2 probes.

Key Specifications

	— 2445B —
Bandwidth	200 MHz
	— 2455B —
Bandwidth	250 MHz
	— 2465B —
Bandwidth	400 MHz
	— 2466B —
Bandwidth	400 MHz
	— 2467B —
Bandwidth	400 MHz
	— Common —
Sweep Rate	500 ps/div
Channels	Four independent channels
Vertical	2 mV/div vertical sensitivity
Cursors	Delta Volts and Delta Time Cursors
CRT Readout	Scale Factors, Trigger Level, Voltage, Time, Frequency, Phase and Ratio Measurements and Mode Indicators
Trigger	Advanced Triggering with "Hands Off" Auto Level Triggering
Trigger Bandwidth	500 MHz min.
Input Impedance	50 Ω/1 MΩ inputs with 50 Ω protection
Probes	Two or four P6137 ×10 probes, 1.3 m

Prices

1990: $13,045 (2467B) = $24,400 equivalent in 2017

Links

Tek 2465B page @ amplifier.cd
Tektronix 2465B oscilloscope teardown @ EEVblog forum (lots of nice internal pictures)
2465B vs. 2467B @ YouTube
How to enter test mode
2465B NVRAM replacement
2465B SMD capacitor leak repair

Pictures

2455B

2465B

2465B (photo by Alex Schonfeld)
2465B (photo by Alex Schonfeld)
2465B (photo by Alex Schonfeld)
2465B (photo by Alex Schonfeld)
2465B (photo by Alex Schonfeld)

2465BDV

2466B

2467B

@@ Line 21: / Line 21: @@
 The '''Tektronix 2465B''' is a four-channel 400 MHz portable oscilloscope.<br />
 The '''2445B''' and '''2455B''' are 200 and 250 MHz versions.<br />
-The '''2466B''' is a 4-channel 400MHz Sony/Tektronix model released in Japan, using a smaller CRT run at higher cathode voltage to give a brighter display to aid in photographing waveforms. It is not an MCP CRT.
 CRT is the [[154-0850-01]].
+The '''2466B''' is a 4-channel 400MHz Sony/Tektronix model released in Japan, using a smaller CRT run at higher cathode voltage to give a brighter display to aid in photographing waveforms. It is not an MCP CRT.<br />
 The '''2467B''' is the same as the 2465B, except that the 2465B uses a conventional CRT while the 2467B uses a [[micro-channel plate CRT]]. The MCP CRT enables bright traces at fast sweep rates, particularly with one-shot or low repetition rate signals.