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{{Oscilloscope Sidebar |
{{Oscilloscope Sidebar
title=Tektronix 465 |
|manufacturer=Tektronix
summary=Portable 100 MHz dual-trace scope |
|series=400-series scopes
image=tek-465-manual.jpg |
|model=465  
caption=Tektronix 465 front |
|summary=Portable 100 MHz dual-trace scope  
introduced=1973 |
|image=Tek 465 trace.jpg
discontinued=1983 |
|caption=Tektronix 465 Front
manuals=
|introduced=1972
* [http://w140.com/mmm/tek-465-late.pdf Tektronix 465 Manual (PDF)]
|discontinued=1983  
* [http://w140.com/465b_trig2.pdf Tektronix 465B Trigger Generator Schematic (PDF)]
|designers=Leon Orchard;Luis Navarro;Bob Shand;Jim Hinze;Frank Dewater;Pete Janowitz;Dave Laib;Al Schamel;Bert tenKate;Ken Holland;Bill Mark;George Ermini;Dennis Braatz
* [http://elektrotanya.com/tektronix_465_oscilloscope_full_sm.pdf/download.html Tektronix 465 Manual (PDF) (better scan)]
|manuals=
'''465'''
* [[Media:070-2038-00.pdf      | 465 + DM44 Operator                        ]] (OCR, 4M)<br /><small>''[[Media:070-2038-00_1976.pdf  | Alternate Copy  ]]''
</small>
* [[Media:070-1330-00.pdf      | 465 Service, 070-1330-00 early version      ]] (OCR, 53M)<br /><small>''[[Media:070-1330-00 (2).pdf  | Alternate Copy  ]] (OCR, 3M)<br />[[Media:TEK 465LOWSN 070-1330-00 REV1.pdf|465 Service, 070-1330-00 Low SN Rev.1]] (OCR, 27M)''</small>
* [[Media:070-1861-00.pdf      | 465 Service B250000+                        ]] (OCR, 44M)
* [[Media:070-1861-00_C.pdf    | 465 Service B250000+                        ]] (Color OCR, 58M)
* [[Media:070-1861-01.pdf      | 465 Service B250000 and up, later revision  ]]
* [[Media:070-1861-02.pdf       | 465 Service B250000 and up, latest revision ]]
* [[Media:070-2191-00.pdf      | 465 Option 5 Supplement                    ]]
 
'''465B'''
* [[Media:070-2756-00.pdf                            | 465B + DM44 Operator -00, with Option 05  ]] (OCR)
* [[Media:070-2756-01.pdf                            | 465B + DM44 Operator -01, with Option 05  ]]
* [[Media:070-2757-00.pdf                            | 465B Service Manual                       ]] (200MB)
* [[Media:070-4273-00.pdf                            | 465B Service Manual, B060000+              ]]  
* [[Media:465b_trig2.pdf                              | Tektronix 465B Trigger Generator Schematic ]]
* [[Media:465b_schematic.pdf                         | Tektronix 465B Trigger Generator Schematic ]] (bad-OCR)
* [[Media:465B_Vertical_Mode_Switch_(4)_Schematic.pdf | 465B Vertical Mode Switch Schematic <4>    ]]
<small>
* [[Media:070-2757-00-M38666.jpg                      | Service Manual Change Information M38666  ]]
* [[Media:070-2757-00-M40219.jpg                      | Service Manual Change Information M40219  ]]
</small>
 
<small>
'''Modifications'''
* [https://hakanh.com/dl/docs/kitinstructions/040-0968-01.pdf 040-0968-01 ]: 465 Opt.7 External DC Operation (1982)
* [https://hakanh.com/dl/docs/kitinstructions/040-0814-02.pdf 040-0814-02 ]: Installation of [[DM44]] on 465 B052300 - B251074
* [https://hakanh.com/dl/docs/kitinstructions/040-0815-01.pdf 040-0815-01 ]: Installation of [[DM44]] on 465 B251075 & up
* [https://hakanh.com/dl/docs/kitinstructions/040-0944-00.pdf 040-0944-00 ]: Installation of [[DM44]] on 465B
* [https://hakanh.com/dl/docs/kitinstructions/050-1627-00.pdf 050-1627-00 ]: S1150 (Time/cm switch) replacement
* [[Media:061-1904-00.pdf                                                  | 465 DIGITAL STORAGE Mod UC                    ]]
* [[Media:061-1057-00.pdf                                                  | 465 Mod XB                                    ]]
* [[Media:050-1558-00.pdf                                                  | 465B Modification: U3165 Replacement          ]]
* [[050-0674-00                                                            | Handle Replacement Modification Kit            ]]
* [[Media:Tek 465 mod QB transition counter.pdf                            | 465 Mod QB Transition Counter                  ]]
</small>
 
====History====
* [[Media:Tek 465 and 475 marketing sales release.pdf  |  Tektronix 465 and 475 Marketing Sales Release  ]]
}}
}}
:''Note: The [[465M|Tektronix 465M scope]] has its own page.''


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.
The '''Tektronix 465''' is a portable 100 MHz dual-trace oscilloscope with dual time-bases, [[introduced in 1972|introduced in November 1972]].
It is all solid-state except for the CRT.  The 465 was very popular and Tek made them for quite a few years.  According to microfiche records, 37 variations of the 465 were produced.  


There was no 465A but a 465B (int. 1980) with the same base specs but improved performance.
[[Bill Turner|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.
The optional [[DM44]] multimeter attaches to the top of the instrument.


==Specifications==
From [[Media:Tekscope 1972 V4 N5 Sep 1972.pdf | Tekscope Vol. 4 No. 5, 1972 ]]:
[[Category:Specifications needed]] ''please add''
<blockquote>
Initial product planning and project coordination was provided by [[Leon Orchard]].
The mechanical design team for the 465 and 475, headed by [[Bob Rossman]], was: [[Neal Broadbent]], [[Bob Leith]], [[Len McCracken]], [[Bob Smesrud]], [[Ilmars Smiltins]], and [[Bob Twigg]].
[[Ken Holland]] and [[Bill Mark]] provided the attenuator design while [[Bob Johnson]] designed the [[P6065]] and [[P6075]] probes. Low-voltage power supply for the 465/475 was by [[George Ermini]], and [[Dennis Braatz]] designed the high-voltage supply. [[Connie Wilson]] and [[Gary Nelson]] did the CRT development.
 
Electrical design team assisting [[R. Michael Johnson]] in development of the 465 was: [[Frank Dewater]], [[Pete Janowitz]], [[Dave Laib]], [[Al Schamel]], and [[Bert tenKate]].
</blockquote>
 
[[Bill Turner]] worked as a calibration technician for the 465 oscilloscope group.
 
{{BeginSpecs}}
{{Spec | 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 }}
{{Spec | Risetime          | 3.5 ns for 0°C to +40°C and 4.2 ns from +40°C to +55°C }}
{{Spec | Input impedance  | 1 MΩ ±2% // 20 pF }}
{{Spec | Input voltage    | max. 500 V DC (250 V<sub>DC</sub> when DC coupled) + Peak AC or 500 V<sub>p-p</sub> AC at < 1 kHz }}
{{Spec | Trigger coupling  | DC, AC, LF Reject, HF Reject }}
{{Spec | Channel isolation | 100:1 at 25 MHz }}
{{Spec | Z-Axis input      | DC to 50 MHz; 5 V<sub>p-p</sub> signal causes noticeable modulation at normal intensity }}
{{Spec | Output signals    | CH1 Vertical, A & B +Gate }}
{{Spec | Calibrator        | ~1 kHz, 300 mV, square wave }}
{{Spec | CRT              | [[T4650]] ([[154-0676-00]]/[[154-0676-05]]/[[154-0676-10]]) tube, P31 [[phosphor]], 18.5 kV acceleration, 8 cm × 10 cm graticule }}
{{Spec | Power            | 110/115/120/220/230/240 V<sub>AC</sub> ±10%, selected via primary voltage selector and regulating range selector assembly, 48 Hz to 440 Hz; 75 W }}
{{EndSpecs}}


==Internals==
==Options==
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.
<small>
{| class="wikitable"
|+ 465 Options
|-
! Opt !! Tek catalogue name !! Description
|-
| 4  || EMI Environmental  || Adds filter circuits and Faraday mesh+ground contact spring in place of acrylic implosion window.
|-
| 5  || TV Sync Separator  || This option has a separate service manual.
|-
| 7  || EXT DC Operation  || DC Power Input. Adds rear socket, power selector switches and inverter module. Not available with DM43 or DM40.
|-
| 78  || P11 Phosphor      || Replaces P31 phosphor 154-0676-10 with P11 version 154-0676-14.
|}
</small>


==Links==
==Links==
* [https://lazyelectrons.wordpress.com/2017/10/30/tektronix-465-repair/          Rajesh's Tek 465 Repair ]
* [https://www.youtube.com/watch?v=I6ODi7qSpYg                                    Jim Williams repairs Tom Osborne's Tektronix 465B oscilloscope] (YouTube)
* [https://www.youtube.com/watch?v=81UA49dOFa4                                    Another successful 465 repair, shorted tantalum] (YouTube)
* [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/465.htm      Tek 465 page @ amplifier.cd]
* [http://lists.contesting.com/_amps/2012-06/msg00415.html                        465B differences ]
* [http://dangerousprototypes.com/2012/03/19/tektronix-465-oscilloscope-teardown/ Tek 465 "teardown" ]
* [https://groups.io/g/TekScopes/files/Replacing%20Electrolytic%20Filter%20Capacitors%20in%20a%20Tektronix%20465.pdf Replacing Electrolytic Filter Capacitors in a Tektronix 465]
* [https://www.youtube.com/watch?v=cnoWBIZUKHg                                    Power Supply and Tube Calibration] by Zenwizard Studios @ YouTube
* [https://www.youtube.com/watch?v=icGTBV1ZcUU                                    Vertical Amplifier Calibration (Full)] by Zenwizard Studios @ YouTube
* [https://www.youtube.com/watch?v=0g4dvpv3RBI                                    Trigger and Timebase Calibration (Full)] by Zenwizard Studios @ YouTube
* [https://www.youtube.com/watch?v=XqiMlfYoNP8                                    Extensive Board Removal (All but Main board)] by Zenwizard Studios @ YouTube
* [https://www.youtube.com/watch?v=AydDpgdCrFU                                    465 Mod UC ] by vintageTek Museum @ YouTube
* [https://www.youtube.com/watch?v=xe0uofu9lTc                                    Tektronix 465 Repair (Horz sweep Issues)] by Zenwizard Studios @ YouTube
{{Documents|Link=465}}
{{Documents|Link=465B}}
{{PatentLinks|465}}
==Prices==
{| class="wikitable"
|-
! Year
! 1973
! 1976
! 1980 (B)
! 1982 (B)
! 1983
|-
! Catalog Price
| $1,725
| $2,095
| $2,600
| $2,995
|
|-
! In 2023 Dollars
| $12,000
| $11,300
| $9,700
| $9,600
|
|}
==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.


* [http://www.youtube.com/watch?v=I6ODi7qSpYg Jim Williams repairs Tom Osborne's Tektronix 465B oscilloscope] (YouTube)
==Common Problems==
* [http://www.spurtikus.de/basteln/repair/tek465/index.html Repairing a 465 (power supply, z axis amplifier, vertical pre amplifier issues)] - nice internal photos
* See [[465/Repairs]]
* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/465.htm Tek 465 page @ amplifier.cd]
* [http://lists.contesting.com/_amps/2012-06/msg00415.html 465B differences]
* [http://dangerousprototypes.com/2012/03/19/tektronix-465-oscilloscope-teardown/ Tek 456 "teardown"]


==Pictures==
==Pictures==
===465===
<gallery>
<gallery>
File:Tek 465 front right.jpg
Tek-465-front.jpg
Tek-465-back.jpg
Tek 465 trace.jpg
Tek 465 front2.jpg
Tek 465 front right.jpg
Tek-465-int1.jpg
Tek-465-int2.jpg
Tek-465-int3.jpg
Tek-465-int4.jpg
</gallery>
</gallery>
===465 OPT 4===
<gallery>
465_clear_vs_EMI_mesh.jpg
</gallery>
===465 OPT 7===
<gallery>
465-opt-7_20220807.jpg
</gallery>
===465 Mod UC===
<gallery>
Tek 465 mod uc front.jpg
Tek 465 mod uc internal.jpg
</gallery>
===465B===
<gallery>
Tek 465b trace.jpg
Tek 465b front.jpg
Tek 465b g1.jpg
Tek 465b g2.jpg
Tek 465b g3.jpg
Tek 465b g4.jpg
Tek 465b g6.jpg
Tek 465b g7.jpg
465B Interface Board 670-5996-13.jpg        |Interface board
465B Interface Board 670-5996-13 flash.jpg  |(camera flash used)
</gallery>
==Components==
{{Parts|465}}
{{Parts|465B}}


[[Category:400 series scopes]]
[[Category:400 series scopes]]
[[Category:Introduced in 1973]]

Latest revision as of 05:08, 25 June 2024

Tektronix 465
Portable 100 MHz dual-trace scope
Tektronix 465 Front

Produced from 1972 to 1983

Manuals

465

465B

Modifications

History

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures
Note: The Tektronix 465M scope has its own page.

The Tektronix 465 is a portable 100 MHz dual-trace oscilloscope with dual time-bases, introduced in November 1972. It is all solid-state except for the CRT. The 465 was very popular and Tek made them for quite a few years. According to microfiche records, 37 variations of the 465 were produced.

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.

From Tekscope Vol. 4 No. 5, 1972 :

Initial product planning and project coordination was provided by Leon Orchard. The mechanical design team for the 465 and 475, headed by Bob Rossman, was: Neal Broadbent, Bob Leith, Len McCracken, Bob Smesrud, Ilmars Smiltins, and Bob Twigg. Ken Holland and Bill Mark provided the attenuator design while Bob Johnson designed the P6065 and P6075 probes. Low-voltage power supply for the 465/475 was by George Ermini, and Dennis Braatz designed the high-voltage supply. Connie Wilson and Gary Nelson did the CRT development.

Electrical design team assisting R. Michael Johnson in development of the 465 was: Frank Dewater, Pete Janowitz, Dave Laib, Al Schamel, and Bert tenKate.

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

Key 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
Risetime 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 VDC when DC coupled) + Peak AC or 500 Vp-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 Vp-p signal causes noticeable modulation at normal intensity
Output signals CH1 Vertical, A & B +Gate
Calibrator ~1 kHz, 300 mV, square wave
CRT T4650 (154-0676-00/154-0676-05/154-0676-10) tube, P31 phosphor, 18.5 kV acceleration, 8 cm × 10 cm graticule
Power 110/115/120/220/230/240 VAC ±10%, selected via primary voltage selector and regulating range selector assembly, 48 Hz to 440 Hz; 75 W

Options

465 Options
Opt Tek catalogue name Description
4 EMI Environmental Adds filter circuits and Faraday mesh+ground contact spring in place of acrylic implosion window.
5 TV Sync Separator This option has a separate service manual.
7 EXT DC Operation DC Power Input. Adds rear socket, power selector switches and inverter module. Not available with DM43 or DM40.
78 P11 Phosphor Replaces P31 phosphor 154-0676-10 with P11 version 154-0676-14.

Links

Documents Referencing 465

Document Class Title Authors Year Links
Tekscope 1972 V4 N5 Sep 1972.pdf Article The New Look in Portables 1972 465 • 475
Tekscope 1974 V6 N1.pdf Article Servicing the 465 Portable Oscilloscope 1974 465
Tekscope 1974 V6 N4.pdf Article The Oscilloscope with the Digital Multimeter Dennis Bratz 1974 DM43 • 465
Tekscope 1975 V7 N3.pdf Article A Potpourri of Modifications and Service Hints 1975 465 • 5L4N • 464 • 466 • 575 • 576 • 577 • TM504

Documents Referencing 465B

Document Class Title Authors Year Links
Tekscope 1979 V11 N2.pdf Article Updating the Industry-Standard 100 MHz Portable Oscilloscope Harold Busch 1979 465B

Patents that may apply to 465

Page Title Inventors Filing date Grant date Links
Patent US 3562464A Cam actuated switch having movable and fixed contacts on circuit board Howard Vollum • Willem H Verhoef • Tony Sprando 1968-10-07 1971-02-09 Cam switches • 2101 • 2701 • 2703 • 432 • 434 • 465 • 475 • 5A15N • 5A18N • 5A20N • 5A21N • 5A38 • 5A45 • 5B10N • 5B12N • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7B10 • 7B15 • 7B50 • 7B51 • 7B52 • 7B53A • 7B50A • 7B70 • 7B71 • 7B80 • 7B85 • 7B87 • 7B92 • 7B92A • 7D01 • 7D12 • 7D15 • 7J20 • 7S12 • 7T11 • 7T11A • AF501 • AM502 • AM503 • DC502 • DC503 • DC504 • DC505 • DM501 • DM502 • FG501 • FG501A • FG502 • FG503 • FG504 • FG507 • PG501 • PG502 • PG505 • PG506 • PG506A • PG508 • TG501 • SC502 • SC503 • SC504
Patent US 3725724A Deflection factor indicating apparatus Howard Vollum 1971-01-11 1973-04-03 464 • 465 • 475 • 5A14N • 5A26N • 5A48
Patent US 3719788A Switch having ganged contacts mounted on opposite sides of circuit board Ken Holland • Tony Sprando 1971-02-04 1973-03-06 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7D15 • PG506
Patent US 3753170A Step attenuator apparatus having attenuator stages selectively connected in cascade by cam actuated switches Ken Holland 1971-02-10 1973-08-14 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26
Patent US 3900711A Electrical contactor assembly for high frequency applications Ken Holland 1974-02-04 1975-08-19 465 • 475 • 5A38 • 5A45 • 7A15 • 7A16A • 7A18 • 7A19 • 7A24 • 7A26 • 7D15 • AM503

Prices

Year 1973 1976 1980 (B) 1982 (B) 1983
Catalog Price $1,725 $2,095 $2,600 $2,995
In 2023 Dollars $12,000 $11,300 $9,700 $9,600

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.

Common Problems

Pictures

465

465 OPT 4

465 OPT 7

465 Mod UC

465B

  • Interface board

    Interface board

  • (camera flash used)

    (camera flash used)

Components

Some Parts Used in the 465

Part Part Number(s) Class Description Used in
154-0731-00 154-0731-00 • 154-0731-01 • 154-0731-02 • 154-0731-04 CRT CRT Telequipment D75 • 455 • 465 • 465B • 468
155-0032-00 155-0032-00 • 155-0032-01 Monolithic integrated circuit variable-gain transconductance amplifier (voltage in, current out) 335 • 464 • 465 • 465B • 466 • 475 • 475A • 475M • 634 • 650 • 651 • 652 • 653 • 655 • 656 • 670 • 671 • 7A12 • 475 • FG504 • 1440 • 1460 • 1480 • 1481 • 1482 • 1485
155-0049-00 155-0049-00 • 155-0049-01 • 155-0049-02 Monolithic integrated circuit sweep control with lockout 335 • 464 • 465 • 466 • 475 • 475A • 475M • 485 • 5B31 • 5B40 • 5B52 • 5B42 • 5B44 • 7B53A • 7B80 • 7B85 • 7B87 • 7B92A • 7B90P • 7B10 • 7B15 • SC502 • 7B42N • AN/USM-281C • 067-0657-00
155-0076-00 155-0076-00 Monolithic integrated circuit input protection and probe logic 465 • 485 • 7A29 • 7A29P • 11A52 • 11A71 • 11A72 • SCD1000
155-0077-00 155-0077-00 • 155-0077-01 Hybrid integrated circuit vertical output amplifier 335 • 464 • 465 • 466 • 7704A
155-0078-00 155-0078-xx • 155-0273-00 • 155-0274-00 Monolithic integrated circuit broadband amplifier 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 Hybrid integrated circuit vertical amplifier 335 • 464 • 465 • 465B • 466 • 468
SKA6516 151-0367-00 Discrete component NPN Transistor 465 • 465B • 466 • 475
STD704 152-0125-00 Discrete component 4.7 mA tunnel diode 1L40 • 1S1 • 11B1 • 11B2 • 11B2A • 147 • R147 • 147A • R147A • 1470 • 148 • R148 • 148-M • 149 • R149 • 149A • R149A • 21A • 22A • 3B4 • 3B5 • 408 • 432 • 434 • 453 • 453A • 454 • 464 • 465 • 466 • 491 • 5T3 • 544 • RM544 • 546 • RM546 • 547 • RM547 • 556 • RM556 • 7B70 • 7B71 • 7D11
T4650 154-0676-00 • 154-0676-05 • 154-0676-10 • 154-0676-14 CRT CRT 465 • Telequipment D75 • Telequipment D755


Some Parts Used in the 465B

Part Part Number(s) Class Description Used in
154-0731-00 154-0731-00 • 154-0731-01 • 154-0731-02 • 154-0731-04 CRT CRT Telequipment D75 • 455 • 465 • 465B • 468
155-0032-00 155-0032-00 • 155-0032-01 Monolithic integrated circuit variable-gain transconductance amplifier (voltage in, current out) 335 • 464 • 465 • 465B • 466 • 475 • 475A • 475M • 634 • 650 • 651 • 652 • 653 • 655 • 656 • 670 • 671 • 7A12 • 475 • FG504 • 1440 • 1460 • 1480 • 1481 • 1482 • 1485
155-0115-00 155-0115-00 Hybrid integrated circuit vertical amplifier 335 • 464 • 465 • 465B • 466 • 468
SKA6516 151-0367-00 Discrete component NPN Transistor 465 • 465B • 466 • 475
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