214
The Tektronix 214 is a small portable dual-trace analog CRT storage scope with a bandwidth of 500 kHz.
The 214 "Miniscope" was developed by a group led by Dave Allen.
Key Specifications
| Bandwidth | 500 kHz above 10 mV/Div ; 400 kHz @ 5 mV/Div, 200 kHz @ 2 mV/Div, 100 kHz @ 1 mV/Div |
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| Deflection | 1 mV/Div to 50 V/Div, 1–2–5 sequence |
| Input impedance | 1 MΩ (integral probes) |
| Writing speed | > 80 Div/ms (500 Div/ms in Automatic Enhance) |
| AC operation | 110 V to 126 V only, max. 3 W |
| Battery | 10 × A size NiCd, 2.5–3.5 hours in store mode, 3.5–5 hours in non-store mode, 8 hours to charge (instrument off) |
| CRT | 154-0695-00 (SN -49999), 154-0732-00 (SN 50000+) |
Links
Pictures
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Storage mode
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Underside
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Power supply schematic
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CRT and Storage schematic
Internal
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214 Internals
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214 Input Board
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214 Single Sweep Board
Components
Some Parts Used in the 214
| Part | Part Number(s) | Class | Description | Used in |
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| 154-0695-00 | 154-0695-00 | CRT | direct-view storage CRT | 214 |
| 154-0732-00 | 154-0732-00 | CRT | direct-view storage CRT | 214 |
| 155-0047-00 | 155-0047-00 | Monolithic integrated circuit | dual variable-gain amplifier | 211 • 212 • 214 |
| 155-0048-01 | 155-0048-00 • 155-0048-01 • 155-0055-00 • 155-0055-01 | Monolithic integrated circuit | trigger sweep | 211 • 212 • 213 • 214 • 432 • 433 • 5B12N • 5B13N • 5L4N • 603 • 604 • 605 • 606 • 606A • 607 • 624 • SC501 • R7912 |
| 155-0083-00 | 155-0083-00 | Monolithic integrated circuit | dual operational amplifier and dual current source | 212 • 214 |
| 2N4851 | 151-0504-00 • 151-0504-01 | Discrete component | silicon unijunction transistor | DC501 • DC502 • DC503 • DC503A • DC504 • DC505 • DC505A • DC508 • DC508A • LA501 • R1330 • 212 • 214 • 4002A • 4623 • 4631 • 4632 • 4633A • 4634 • 4701 • 4701R • 670-0696-01 • 670-1274-00 • 670-1981-00 • 670-1981-01 • 7D01 • 7D12 • 7L12 |
| 2N5060 | 151-0503-00 | Discrete component | 30 V, 0.8 A thyristor (SCR) | CG551AP • C50 • C51 • C52 • C53 • C70 • DC505 • DC505A • DC508 • DC508A • 1240 • 1241 • 212 • 213 • 214 • 4014 • 4015 • 4025 • 4027 • 4105 • 4106 • 4107 • 4109 • 4111 • 450 • 4623 • 4631 • 4632 • 4633A • 485 • 5D10 • 5223 • 7D10 • 7D11 • 7L12 • 7L13 • 7L14 • 7L18 • 7912AD • 91HS8 |