2225: Difference between revisions
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{{Oscilloscope Sidebar | |||
|manufacturer=Tektronix | |||
|series=2200-series scopes | |||
|model=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== | |||
* [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== | |||
'''2225''' | |||
<gallery> | |||
Tek 2225.jpg | |||
Tek 2225 int 1.jpg | |||
Tek 2225 int 2.jpg | |||
Tek 2225 int 3.jpg | |||
</gallery> | |||
'''2225ST''' | |||
<gallery> | |||
Tek 2225ST 1.jpg | |||
Tek 2225ST 2.jpg | |||
Tek 2225ST 3.jpg | |||
Tek 2225ST 4.jpg | |||
Tek 2225ST 5.jpg | |||
</gallery> | |||
==Components== | |||
{{Parts|2225}} | |||
[[Category:2200 series scopes]] | |||
[[Category:Specifications needed]] |
Latest revision as of 05:14, 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 |