2235
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The Tektronix 2235 is a 100 MHz dual-trace, dual-timebase portable scope.
It was also sold to the military under the model name AN/USM-488.
The 2236 sister model adds a built-in DMM/counter.
Key Specifications
| Bandwidth | 90 MHz at 2 mV/Div, 100 MHz at 5 mV/Div and above; switchable 20 MHz limit |
|---|---|
| Rise time | 3.9 ns at 2 mV/Div, 3.5 ns at 5 mV/Div and above |
| Deflection | 2 mV/Div to 5 V/Div, 1−2−5, ±2%, and variable 2.5:1 |
| Time base | 50 ns/Div to 500 ms/Div (B timebase to 50 ms/Div), 1−2−5, ×10 magnifier for fastest deflection of 5 ns/Div |
| Input impedance | 1 MΩ // 20 pF |
| Trigger sensitivity | 0.3 Div or 35 mV up to 10 MHz, 1 Div or 120 mV up to 60 MHz, 1.5 Div or 200 mV up to 100 MHz |
| CRT | 80×100 mm² display area, P31 phosphor, 14 kV acceleration voltage |
| Power | 90−250 VAC, 48 to 440 Hz, 40 W |
| Size | 137 mm × 327 mm × 440 mm (5.4" × 12.9" × 17.3") |
| Weight | 5.2 kg (11.5 lb) without accessories |
| Features |
|
Standard probes: Two P6122 passive ×10 probes (010-6122-01)
Prices
| Year | Catalog price | In 2026 dollars |
|---|---|---|
| 1984 | $1,650 | ~$5,300 |
Links
- Troubleshooting tips on 2200 PSU
- Tektronix 2235 Oscilloscope Restoration by NFM @ YouTube
- 2232/5/6 PSU repair thread
Documents referencing 2235
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| 061-4124-02.pdf | Article | Handheld and benchtop instruments service manuals | 2002 | 2211 • 2214 • 2220 • 2221A • 2225 • 2230 • 2232 • 2235 • 2245 • 2245A • 2246A • 2247A • 2252 • 2335 • 2336 • 2336YA • 2337 • TAS455 • TAS465 • TAS475 • TAS485 • TDS210 • TDS220 • TDS310 • TDS320 • TDS340 • TDS340A • TDS360 • TDS350 • TDS380 • THM420 • THM500 • THS710 • THS720 • THS730 |
Pictures
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2235
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2235A
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This 2235 has a 3.44 ns rise time.
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
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AN/USM-488
Components
Some Parts Used in the 2235
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 2N5454 | 151-1042-00 | Discrete component | dual n-channel JFET | 7B80 • 7B53A • 2213 • 2215 • 2235 • T912 • T921 • T922 • T932 • T935 |
| T4655 | 154-0861-00 • 154-0861-10 • 154-0930-00 | CRT | CRT | 2220 • 2221 • 2221A • 2224 • 2230 • 2232 • 2235 |
