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{{Oscilloscope Sidebar | | {{Oscilloscope Sidebar | ||
|manufacturer=Tektronix | |||
summary=50 MHz dual-channel scope | | |series=2200-series scopes | ||
image=Tek 2225.jpg | | |model=2225 | ||
caption=Tektronix 2225 | | |summary=50 MHz dual-channel scope | ||
|image=Tek 2225.jpg | |||
|caption=Tektronix 2225 | |||
|introduced=1987 | |||
|discontinued=1992 | |||
|designers= | |||
|manuals= | |||
* [[Media:070-6298-01.pdf|Tektronix 2225 Operators and Options]] | |||
* [[Media:070-6499-00.pdf|Tektronix 2225 Operators and Options, French]] | |||
* [[Media:070-6299-00.pdf|Tektronix 2225 Service]] (OCR) | |||
* [https://www.hakanh.com/dl/docs/troubleshooting_tips_on_2200_ps.pdf Troubleshooting tips on 2200 PSU] | |||
}} | |||
The '''Tektronix 2225''' is a 50 MHz dual-channel analog scope. | |||
It has a single timebase with a ×5/×10/×50 magnifier that allows displaying normal and magnified traces together on the screen, but has no delay feature, only an X position control. | |||
The Y inputs feature a ×10 magnifier that decreases bandwidth to 5 MHz but increases sensitivity to 0.5 mV/Div. | |||
There is a '''2225ST''' model that adds digital storage. ''Further information needed'' | |||
A 2205 equipped with option 07 (internal DC inverter) can be powered ≥3 hours from an [[1104A]] battery. | |||
The 2225 was known internally as Euroscope. | |||
It was initially developed in [[Hoddesdon]], UK and then produced in Tek's [[Heerenveen]] facility. | |||
{{BeginSpecs}} | |||
{{Spec | Rise time | ≤7 ns (≤70 ns with ×10 vertical magnification) }} | |||
{{Spec | Bandwidth | ≥50 MHz (≥5 MHz with ×10 vertical magnification) }} | |||
{{Spec | Deflection | 5 mV/Div to 5 V/Div, 1–2–5; 500 μV/Div with ×10 vertical magnification; variable ≥2.5:1 }} | |||
{{Spec | Input impedance | 1 MΩ // 25±2 pF }} | |||
{{Spec | Maximum Safe Input | 400 V (DC + peak AC) or 800 V<sub>p-p</sub> AC to ≤10 kHz }} | |||
{{Spec | Trigger sensitivity | 0.3 Div or 40 mV @ 5 MHz, 1 Div or 200 mV @ 5 MHz }} | |||
{{Spec | Sweep | 0.5 s/Div to 50 ns/Div, 1−2−5; ×10 Mag. down to 5 ns/Div; variable ≥2.5 : 1 }} | |||
{{Spec | Z input | 5 V causes noticeable modulation (positive decreases intensity), DC to 5 MHz; max. 400 V (DC + peak AC) or 800 V<sub>p-p</sub> AC to ≤10 kHz }} | |||
{{Spec | CRT | [[154-0907-00]] tube, 80 × 100 mm² display, P31 phosphor, 12.6 kV acceleration }} | |||
{{Spec | Power | 95–128 or 185–250 V<sub>AC</sub>, 48–440 Hz, ≤70 W (80 VA) }} | |||
{{Spec | Features | | |||
* X-Y mode (± 3° from DC to 150 kHz) | |||
* Calibrator (0.5 V ±5% into 1 MΩ Load; 1 kHz ±20%) | |||
}} | |||
{{Spec | Options | (selected) | |||
* 1R – Rackmount kit | |||
* 02 − Front Cover and Pouch | |||
* 07 – Internal DC Inverter (for 11.8–30 V<sub>DC</sub> supply) | |||
* 30 – Opt.07 + [[1104]] battery | |||
* 18 – [[P6122]] probes instead of standard [[P6103]] | |||
}} | }} | ||
{{EndSpecs}} | |||
==Prices== | |||
* 1990 catalog: $1,095 ($2,280 in 2021 dollars) | |||
* ''Wireless World'', May 1991: 2225, £400; 2225ST, £550 | |||
==Links== | ==Links== | ||
* | * [https://www.eevblog.com/2011/08/17/eevblog-196-tektronix-2225-analog-oscilloscope/ Tektronix 2225 Analog Oscilloscope - EEVblog 196] | ||
* [https://www.eevblog.com/2011/10/17/eevblog-208-tektronix-2225-oscilloscope-teardown-and-calibration/ Tektronix 2225 Oscilloscope Teardown and Calibration - EEVblog 208] | |||
{{Documents|Link=2225}} | |||
{{PatentLinks|2225}} | |||
==Internals== | |||
The 2225 power supply uses a [[120-1630-00]] mains-frequency toroidal transformer to produce a 60 V DC supply, followed by two [[TL494]]-driven switching regulators. | |||
The scope uses transistor array ICs like the CA3102, [[CA3046]] and CA3054, but no Tek custom ICs. | |||
==Pictures== | ==Pictures== | ||
'''2225''' | |||
<gallery> | |||
Tek 2225.jpg | |||
Tek 2225 int 1.jpg | |||
Tek 2225 int 2.jpg | |||
Tek 2225 int 3.jpg | |||
</gallery> | |||
'''2225ST''' | |||
<gallery> | <gallery> | ||
Tek 2225ST 1.jpg | |||
Tek 2225ST 2.jpg | |||
Tek 2225ST 3.jpg | |||
Tek 2225ST 4.jpg | |||
Tek 2225ST 5.jpg | |||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|2225}} | |||
[[Category: | [[Category:2200 series scopes]] | ||
[[Category:Specifications needed]] | [[Category:Specifications needed]] | ||
Latest revision as of 04:14, 19 September 2024
The Tektronix 2225 is a 50 MHz dual-channel analog scope.
It has a single timebase with a ×5/×10/×50 magnifier that allows displaying normal and magnified traces together on the screen, but has no delay feature, only an X position control.
The Y inputs feature a ×10 magnifier that decreases bandwidth to 5 MHz but increases sensitivity to 0.5 mV/Div.
There is a 2225ST model that adds digital storage. Further information needed
A 2205 equipped with option 07 (internal DC inverter) can be powered ≥3 hours from an 1104A battery.
The 2225 was known internally as Euroscope. It was initially developed in Hoddesdon, UK and then produced in Tek's Heerenveen facility.
Key Specifications
| Rise time | ≤7 ns (≤70 ns with ×10 vertical magnification) |
|---|---|
| Bandwidth | ≥50 MHz (≥5 MHz with ×10 vertical magnification) |
| Deflection | 5 mV/Div to 5 V/Div, 1–2–5; 500 μV/Div with ×10 vertical magnification; variable ≥2.5:1 |
| Input impedance | 1 MΩ // 25±2 pF |
| Maximum Safe Input | 400 V (DC + peak AC) or 800 Vp-p AC to ≤10 kHz |
| Trigger sensitivity | 0.3 Div or 40 mV @ 5 MHz, 1 Div or 200 mV @ 5 MHz |
| Sweep | 0.5 s/Div to 50 ns/Div, 1−2−5; ×10 Mag. down to 5 ns/Div; variable ≥2.5 : 1 |
| Z input | 5 V causes noticeable modulation (positive decreases intensity), DC to 5 MHz; max. 400 V (DC + peak AC) or 800 Vp-p AC to ≤10 kHz |
| CRT | 154-0907-00 tube, 80 × 100 mm² display, P31 phosphor, 12.6 kV acceleration |
| Power | 95–128 or 185–250 VAC, 48–440 Hz, ≤70 W (80 VA) |
| Features |
|
| Options | (selected) |
Prices
- 1990 catalog: $1,095 ($2,280 in 2021 dollars)
- Wireless World, May 1991: 2225, £400; 2225ST, £550
Links
- Tektronix 2225 Analog Oscilloscope - EEVblog 196
- Tektronix 2225 Oscilloscope Teardown and Calibration - EEVblog 208
Documents Referencing 2225
- (no results)
Internals
The 2225 power supply uses a 120-1630-00 mains-frequency toroidal transformer to produce a 60 V DC supply, followed by two TL494-driven switching regulators.
The scope uses transistor array ICs like the CA3102, CA3046 and CA3054, but no Tek custom ICs.
Pictures
2225
2225ST
Components
Some Parts Used in the 2225
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 154-0907-00 | 154-0907-00 | CRT | CRT | 2225 • 2225ST |
| TL494 | Monolithic integrated circuit | PWM switch-mode controller | 2225 • 7250 |