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discontinued=1983 | | discontinued=1983 | | ||
manuals= | manuals= | ||
'''475''' | |||
* [http://w140.com/tek_475_tek.pdf Tektronix 475 Manual (65MB file, ok quality, PDF)] | * [http://w140.com/tek_475_tek.pdf Tektronix 475 Manual (65MB file, ok quality, PDF)] | ||
* [http://w140.com/Tektronix_475_Oscilloscope_Service_Manual.pdf Tektronix 475 Manual (108MB file, good quality, PDF)] | * [http://w140.com/Tektronix_475_Oscilloscope_Service_Manual.pdf Tektronix 475 Manual (108MB file, good quality, PDF)] | ||
* [[Media:TB-9-6625-2240-35.pdf|475 calibration (Army) (OCR)]] | * [[Media:TB-9-6625-2240-35.pdf|475 calibration (Army) (OCR)]] | ||
* [[Media:070-1332-00.pdf|Tektronix 475 Manual (65MB file, ok quality, PDF, OCR, bad-OCR)]] | |||
'''475A''' | |||
* [[Media:070-2163-00.pdf|Tektronix 475A-DM44 Oscilloscope Instruction Manual (OCR, PDF)]] | * [[Media:070-2163-00.pdf|Tektronix 475A-DM44 Oscilloscope Instruction Manual (OCR, PDF)]] | ||
* [[Media:070-2162-00.pdf|Tektronix 475A Manual (11MB, PDF)]] | |||
* [[Media:tek_475a_block_diagram.pdf|Tektronix 475A Schematics (PDF, OCR, bad-OCR)]] | |||
* [http://w140.com/tek_475a_schematics.pdf Tektronix 475A Schematics (PDF)] | |||
'''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 (PDF, needs OCR)]] | |||
'''History''' | |||
* [[Media:Tek 465 and 475 marketing sales release.pdf|Tektronix 465 and 475 Marketing Sales Release (PDF)]] | * [[Media:Tek 465 and 475 marketing sales release.pdf|Tektronix 465 and 475 Marketing Sales Release (PDF)]] | ||
* [[Media:tek_475a_msr.pdf|Tektronix 475A Marketing Sales Release (PDF, OCR, bad-OCR)]] | |||
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* [http://w140.com/tek_475a_description.pdf Tektronix 475A Marketing Sales Release (PDF)] | |||
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}} | }} | ||
The '''Tektronix 475''' is a portable dual-trace oscilloscope with dual time-bases similar to the [[465]], | The '''Tektronix 475''' is a portable dual-trace oscilloscope with dual time-bases similar to the [[465]], | ||
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* [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/475.htm Tek 475] / [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/475A_DM44.htm Tek 475A] @ amplifier.cd | * [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/475.htm Tek 475] / [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/475A_DM44.htm Tek 475A] @ amplifier.cd | ||
* [https://www.youtube.com/watch?v=2SESaF7Ibbw Tek 475A in operation] @ YouTube | * [https://www.youtube.com/watch?v=2SESaF7Ibbw Tek 475A in operation] @ YouTube | ||
* [[050-0674-00|Handle Replacement Modification Kit]] | |||
==Common Problems== | ==Common Problems== | ||
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[[Category:400 series scopes]] | [[Category:400 series scopes]] | ||
Revision as of 13:55, 3 October 2019
The Tektronix 475 is a portable dual-trace oscilloscope with dual time-bases similar to the 465, but with 200 MHz bandwidth and a maximum vertical sensitivity of 2 mV/Div. It is all solid-state except for the CRT. It was introduced in November 1972.
A revised version, the 475A, has 250 MHz bandwidth and a maximum vertical sensitivity of 5 mV/Div. The 1106 is a battery pack for the 475.
The optional DM44 multimeter attaches to the top of the instrument.
Key Specifications
Bandwidth | 200 MHz (475), AC cutoff 10 Hz, switchable BW limit 20 MHz |
---|---|
Rise time | 1.75 ns (475) |
Deflection | 2 mV/Div to 5 V/Div, 1-2-5 |
Cascaded mode | 400 μV/Div, 50 MHz with CH1 input connected to CH2 VERT SIG OUT |
Time base | 10 ns/Div to 500 ms/Div, 1-2-5, and ×10 magnifier |
Input impedance | 1 MΩ // 20 pF |
Triggering | 0.3 Div (int) or 50 mV (ext) to 40 MHz, increasing to 1.5 Div/250 mV at 200 MHz; AC coupling >60 Hz; LF REJ >50 kHz, HF REJ <50 kHz |
X bandwidth | 3 MHz |
Z axis input | 5 Vp-p, 50 MHz |
Calibrator | 1 kHz, 30 mA / 300 mV square wave |
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; Probe power jack |
CRT | 8 × 10 cm², P31 phosphor (P11 opt.) |
Power | 110, 115, 120, 220, 230 or 240 VAC ±10%, 48-440 Hz, max. 100 W |
Internals
The 475 uses a number of Tek-made integrated circuits, including the 155-0032-01 input preamplifier, 155-0085-00 input amplifier, 155-0078-00 vertical amplifier, 155-0091-00 channel switch, 155-0082-00 vertical output amplifier, and 155-0049-00 sweep control.
Links
- Lazy Electrons Tektronix 475A & DM44 Repair Page
- The New Look in Portables, in Tekscope Vol. 4 No. 5, 1972
- Tek 475 / Tek 475A @ amplifier.cd
- Tek 475A in operation @ YouTube
- Handle Replacement Modification Kit
Common Problems
- See 475/Repairs