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|summary=Portable 100 MHz dual-trace scope  
|summary=Portable 100 MHz dual-trace scope  
|image=Tek 465 trace.jpg
|image=Tek 465 trace.jpg
|caption=Tektronix 465 front
|caption=Tektronix 465 Front
|introduced=1972  
|introduced=1972  
|discontinued=1983  
|discontinued=1983  
|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
|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
|manuals=
|manuals=
====465====
'''465'''
* [[Media:070-2038-00.pdf|465 + DM44 Operator]] (OCR, 4M)<br /><small>''[[Media:070-2038-00_1976.pdf|Alternate Copy]]''</small>
* [[Media:070-2038-00.pdf       | 465 + DM44 Operator                         ]] (OCR, 4M)<br /><small>''[[Media:070-2038-00_1976.pdf | Alternate Copy   ]]''
* [[Media:070-1330-00.pdf|465 Service, early version]] (OCR, 53M)<br><small>''[[Media:070-1330-00 (2).pdf|Alternate Copy]] (OCR, 3M)''</small>'' 
</small>
* [[TEK 465LOWSN 070-1330-00 REV1.pdf]] (OCR, 27M)<br><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.pdf       | 465 Service B250000+                       ]] (OCR, 44M)
* [[Media:070-1861-00_C.pdf|465 Service B250000+]] (Color OCR, 58M)
* [[Media:070-1861-00_C.pdf     | 465 Service B250000+                       ]] (Color OCR, 58M)
* [[Media:070-1861-01.pdf|465 Service B250000 and up, latest revision]]
* [[Media:070-1861-01.pdf       | 465 Service B250000 and up, latest revision ]]
* [[Media:070-2191-00.pdf|465 Option 5 Supplement]]
* [[Media:070-2191-00.pdf       | 465 Option 5 Supplement                     ]]


====465B====
'''465B'''
* [[Media:070-2756-00.pdf|465B + DM44 Operator 09/1981, with Option 05]] (OCR)
* [[Media:070-2756-00.pdf                             | 465B + DM44 Operator -00, with Option 05   ]] (OCR)
* [[Media:070-2757-00.pdf|Tektronix 465B Instruction Manual]] (200MB)
* [[Media:070-2756-01.pdf                            | 465B + DM44 Operator -01, with Option 05  ]]
* [[Media:465b_trig2.pdf|Tektronix 465B Trigger Generator Schematic]]
* [[Media:070-2757-00.pdf                             | 465B Service Manual                       ]] (200MB)
* [[Media:465b_schematic.pdf|Tektronix 465B Trigger Generator Schematic]] (bad-OCR)
* [[Media:070-4273-00.pdf                            | 465B Service Manual, B060000+              ]]  ''please add''
* [[Media:465B_Vertical_Mode_Switch_(4)_Schematic.pdf| 465B Vertical Mode Switch Schematic <4>]]
* [[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>
<small>
'''Modifications'''
'''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/040-0968-01.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/040-0814-02.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/040-0815-01.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/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
* [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:061-1904-00.pdf                                                 | 465 DIGITAL STORAGE Mod UC                     ]]
* [[Media:061-1057-00.pdf|465 Mod XB]]
* [[Media:061-1057-00.pdf                                                 | 465 Mod XB                                     ]]
* [[Media:050-1558-00.pdf|465B Modification: U3165 Replacement]]
* [[Media:050-1558-00.pdf                                                 | 465B Modification: U3165 Replacement           ]]
* [[050-0674-00|Handle Replacement Modification Kit]]
* [[050-0674-00                                                           | Handle Replacement Modification Kit           ]]
* [[Media:Tek 465 mod QB transition counter.pdf                            | 465 Mod QB Transition Counter                  ]]
</small>
</small>


====History====
====History====
* [[Media:Tek 465 and 475 marketing sales release.pdf|Tektronix 465 and 475 Marketing Sales Release]]
* [[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]].'''
:''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, [[introduced in 1972|introduced in November 1972]].  
The '''Tektronix 465''' is a portable 100 MHz dual-trace oscilloscope with dual time-bases, [[introduced in 1972|introduced in November 1972]].  
Line 51: Line 58:


The optional [[DM44]] multimeter attaches to the top of the instrument.
The optional [[DM44]] multimeter attaches to the top of the instrument.
From [[Media:Tekscope 1972 V4 N5 Sep 1972.pdf | Tekscope Vol. 4 No. 5, 1972 ]]:
<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.
[[Bill Turner]] worked as a calibration technician for the 465 oscilloscope group.


{{BeginSpecs}}
{{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 | 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 | 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 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 | 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 | Trigger coupling | DC, AC, LF Reject, HF Reject }}
{{Spec | Channel isolation | 100:1 at 25 MHz }}
{{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 | 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 | Output signals   | CH1 Vertical, A & B +Gate }}
{{Spec | Calibrator | ~1 kHz, 300 mV, square wave}}
{{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 | 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 }}
{{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}}
{{EndSpecs}}


==Internals==
==Options==
The 465 uses tunnel diodes with Tek part number 152-0125-00,
<small>
which are equivalent to [[TD3A]], and [[155-0032-00]] chips (their -01 grade) as trigger amplifiers.
{| 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://lazyelectrons.wordpress.com/2017/10/30/tektronix-465-repair/           Rajesh's Tek 465 Repair ]
* The New Look in Portables, in [[Media:Tekscope 1972 V4 N5 Sep 1972.pdf|Tekscope Vol. 4 No. 5, 1972]]
* [https://www.youtube.com/watch?v=I6ODi7qSpYg                                   Jim Williams repairs Tom Osborne's Tektronix 465B oscilloscope] (YouTube)
* [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.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]
* [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://lists.contesting.com/_amps/2012-06/msg00415.html 465B differences]
* [http://dangerousprototypes.com/2012/03/19/tektronix-465-oscilloscope-teardown/ Tek 465 "teardown" ]
* [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://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 Zenwizard Studios - Power Supply and Tube Calibration]
* [https://www.youtube.com/watch?v=cnoWBIZUKHg                                   Power Supply and Tube Calibration] by Zenwizard Studios @ YouTube
* [https://www.youtube.com/watch?v=icGTBV1ZcUU Zenwizard Studios - Vertical Amplifier Calibration (Full)]
* [https://www.youtube.com/watch?v=icGTBV1ZcUU                                   Vertical Amplifier Calibration (Full)] by Zenwizard Studios @ YouTube
* [https://www.youtube.com/watch?v=0g4dvpv3RBI Zenwizard Studios - Trigger and Timebase Calibration (Full)]
* [https://www.youtube.com/watch?v=0g4dvpv3RBI                                   Trigger and Timebase Calibration (Full)] by Zenwizard Studios @ YouTube
* [https://www.youtube.com/watch?v=XqiMlfYoNP8 Zenwizard Studios - Extensive Board Removal (All but Main board)]
* [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=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}}
 
==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.


==Common Problems==
==Common Problems==
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Tek-465-int3.jpg
Tek-465-int3.jpg
Tek-465-int4.jpg
Tek-465-int4.jpg
</gallery>
===465 OPT 4===
<gallery>
465_clear_vs_EMI_mesh.jpg
</gallery>
===465 OPT 7===
<gallery>
465-opt-7_20220807.jpg
</gallery>
</gallery>


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Tek 465b g6.jpg
Tek 465b g6.jpg
Tek 465b g7.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>
</gallery>


{{CRTs|465}}
==Components==
{{CRTs|465B}}
{{Parts|465}}
{{Custom ICs|465}}
{{Parts|465B}}
{{Custom ICs|465B}}


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