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475: Difference between revisions
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'''475''' | '''475''' | ||
* [[Media:070-1333-00.pdf|Tektronix 475 Operators Manual]] (OCR, 14MB, good quality) | * [[Media:070-1333-00.pdf|Tektronix 475 Operators Manual]] (OCR, 14MB, good quality) | ||
* [[Media:070-1332-00.pdf|Tektronix 475 Service Manual]] ( | * [[Media:070-1332-00.pdf|Tektronix 475 Service Manual]] (OCR) | ||
* [[Media:Tek 475 corrections and changes.pdf|Tektronix 475 Service Manual Corrections and Changes]] | |||
* [[Media:070-1862-00.pdf|Tektronix 475 with Option SN B250,000-up]] (165MB) | * [[Media:070-1862-00.pdf|Tektronix 475 with Option SN B250,000-up]] (165MB) | ||
* [[Media:070-2039-00.pdf|Tektronix 475/DM44 Operators Manual]] (16MB) | * [[Media:070-2039-00.pdf|Tektronix 475/DM44 Operators Manual]] (16MB) | ||
| Line 30: | Line 31: | ||
'''Modifications''' | '''Modifications''' | ||
* [[Media:050-1558-00.pdf|Modification: U3165 Replacement]] | * [[Media:050-1558-00.pdf|Modification: U3165 Replacement]] | ||
* [[Media:062-2784-00.pdf|067-0676-00 Vertical Insertion Unit for 475 Datasheet]] | * [[Media:062-2784-00.pdf|067-0676-00 Vertical Insertion Unit for 475 Datasheet]] | ||
* [[050-0674-00|Handle Replacement Modification Kit]] | |||
'''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]] | ||
* [[Media:tek_475a_msr.pdf|Tektronix 475A Marketing Sales Release]] | * [[Media:tek_475a_msr.pdf|Tektronix 475A Marketing Sales Release]] | ||
}} | }} | ||
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It is all solid-state except for the CRT. It was introduced in November 1972. | It is all solid-state except for the CRT. It was introduced in November 1972. | ||
The military variant is called OS-261 C(v)1/0, which has a DC/DC converter (12/ | The military variant is called OS-261 C(v)1/0, which has a DC/DC converter (12/24 V input) on board. | ||
The 475M is a standard 475 with enhanced environmental specs. | |||
A revised version, the 475A ([[introduced in 1977]]), has 250 MHz bandwidth and a maximum vertical sensitivity of 5 mV/Div. | A revised version, the 475A ([[introduced in 1977]]), has 250 MHz bandwidth and a maximum vertical sensitivity of 5 mV/Div. | ||
| Line 55: | Line 59: | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | 200 MHz (475), AC cutoff 10 Hz, switchable BW limit 20 MHz }} | {{Spec | Bandwidth | 200 MHz (475), AC cutoff 10 Hz, switchable BW limit 20 MHz, SN B100000+ also 100 MHz }} | ||
{{Spec | Rise time | 1. | {{Spec | Rise time | 1.75 ns (475) }} | ||
{{Spec | Deflection | 2 mV/Div to 5 V/Div, 1−2−5 | {{Spec | Deflection | 2 mV/Div to 5 V/Div, 1−2−5; 400 μV/Div, 50 MHz with CH1 input connected to CH2 VERT SIG OUT }} | ||
{{Spec | Time base | 10 ns/Div to 500 ms/Div, 1−2−5, and ×10 magnifier }} | {{Spec | Time base | 10 ns/Div to 500 ms/Div, 1−2−5, and ×10 magnifier }} | ||
{{Spec | Input impedance | 1 MΩ // 20 pF }} | {{Spec | Input impedance | 1 MΩ // 20 pF }} | ||
| Line 67: | Line 70: | ||
{{Spec | Outputs | CH2 Vert Signal Out, 20 mV/Div into 1 MΩ or 10 mV/Div into 50 Ω; A and B +GATE OUT, +5 V; [[LEMO S-series connector|Probe power jack]] }} | {{Spec | Outputs | CH2 Vert Signal Out, 20 mV/Div into 1 MΩ or 10 mV/Div into 50 Ω; A and B +GATE OUT, +5 V; [[LEMO S-series connector|Probe power jack]] }} | ||
{{Spec | CRT | 8 × 10 cm², P31 phosphor (P11 opt.), [[154-0677-00]] }} | {{Spec | CRT | 8 × 10 cm², P31 phosphor (P11 opt.), [[154-0677-00]] }} | ||
{{Spec | Power | 110, 115, 120, 220, 230 or | {{Spec | Power | 110, 115, 120, 220, 230 or 240 V<sub>AC</sub> ±10%, 48-440 Hz, max. 100 W }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | |||
===Documents and reports=== | |||
* [https://lazyelectrons.wordpress.com/2018/02/18/tektronix-475a-dm44-repair/ Lazy Electrons Tektronix 475A & DM44 Repair Page] | |||
* [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/475.htm Tek 475] / [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/475A_DM44.htm Tek 475A with DM44] @ amplifier.cd | |||
{{Documents|Link=475}} | |||
===Videos=== | |||
====Zenwizard Studios==== | |||
* [https://www.youtube.com/watch?v=gEXYRPNohyA Tektronix 475 151-0367-00 Guaranteed Bad Parts] ''caution - see notes on [[151-0367-00]] page'' | |||
* [https://www.youtube.com/watch?v=982GcYWIjWI Tektronix 475 non-A Repair and Restoration] | |||
* [https://www.youtube.com/watch?v=KzVMbhytWOg Tektronix 475A and DM44 Power Supply and Tube Alignment] | |||
* [https://www.youtube.com/watch?v=5fGnnTfDNPA Tektronix 475A and DM44 Horizontal Alignment] | |||
* [https://www.youtube.com/watch?v=wfw60QmUp_A Tektronix 475A and DM44 Repair Power Supply and Logic] | |||
* [https://www.youtube.com/watch?v=gtDnTN14JL0 Tektronix 475A Vertical Alignment and One Last Power Supply Issue] | |||
* [https://www.youtube.com/watch?v=tw55DrUR8s8 Tektronix 475A Trigger Section Alignment] | |||
====VintageTek Museum==== | |||
* [https://www.youtube.com/watch?v=WPgkVThknYo Tek 475A / DM44 repair] | |||
====Miscellaneous==== | |||
* [https://www.youtube.com/watch?v=2SESaF7Ibbw Tek 475A in operation] | |||
==Internals== | ==Internals== | ||
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[[155-0082-00]] vertical output amplifier, and [[155-0049-00]] sweep control. | [[155-0082-00]] vertical output amplifier, and [[155-0049-00]] sweep control. | ||
== | ==Prices== | ||
{| class="wikitable" | |||
|- | |||
! Year | |||
! 1973 | |||
! 1976 | |||
! 1980 | |||
! 1980 (A) | |||
! 1982 (A) | |||
! 1983 | |||
|- | |||
! Catalog Price | |||
|align=right| $2,500 | |||
|align=right| $2,900 | |||
|align=right| $3,650 | |||
|align=right| $4,050 | |||
|align=right| $4,410 | |||
| | |||
|- | |||
! In 2023 Dollars | |||
|align=right| $17,300 | |||
|align=right| $15,700 | |||
|align=right| $13,600 | |||
|align=right| $15,100 | |||
|align=right| $14,100 | |||
| | |||
|} | |||
==Common Problems== | ==Common Problems== | ||
* See [[475/Repairs]] | * See [[475/Repairs]] | ||
==Pictures== | |||
== | ===475=== | ||
<gallery> | <gallery> | ||
Tek 475 mix mode.jpg | Tek 475 in mixed sweep ("MIX") horizontal mode | Tek 475 mix mode.jpg | Tek 475 in mixed sweep ("MIX") horizontal mode | ||