Comparison ledger
Tektronix 321A, Tektronix 513, side by side. Every value shown is drawn from the cited encyclopedia entries.
| Attribute | 321ATektronix | 513Tektronix |
|---|---|---|
| OEM | Tektronix | Tektronix |
| Category | oscilloscope | oscilloscope |
| Wafer size | — | — |
| Process node | — | — |
| Introduced | 1962 | 1946 |
| Production run | 1962– | 1950–1955 |
| Lifecycle | — | — |
| Lifecycle milestones | — | — |
| Control system | — | — |
| Generation | — | — |
| Family | Tektronix 321A | Tektronix 513 |
| Cited variants | — |
|
| Specifications | ||
| model type | all-transistor oscilloscope[2] | — |
| relationship to Model 321 | follow-on version released about a year and a half later[2] | — |
| Model 321 description | first battery-operated transistor oscilloscope[2] | — |
| Manufacturer | Tektronix[3] | — |
| Model | 321A[3] | — |
| Year | 1964[3] | — |
| Category | Service- or Lab Equipment[3] | — |
| Type | single-channel oscilloscope[3] | — |
| Bandwidth | dc to at least 6 MHz (3 dB down)[4] | — |
| Input coupling | AC, DC, and GND[3] | — |
| Vertical sensitivity | 0.01 V/div to 20 V/div in 11 calibrated steps[4] | — |
| Time base | 0.5 sec/div to 3 sec/div calibrated sweep rates[4] | — |
| Power sources | internal rechargeable battery pack, external DC source, or 115 V AC line[4] | — |
| Power line frequency | 50-800 cycles[4] | — |
| CRT graticule | 6 × 10 divisions with 0.2-division centerline markers[4] | — |
| Dimensions | 146 x 222 x 419 mm[3] | — |
| Net weight | 6.5 kg[3] | — |
| type | — | oscilloscope[2] |
| distinction | — | first oscilloscope with a true time-base[2] |
| manufacturer | — | Tektronix[1] |
| model | — | 513[1] |
| device type | — | single-channel monolithic oscilloscope[1] |
| bandwidth | — | 18 MHz[1] |
| first of kind | — | first oscilloscope with a true time-base[2] |
| announcement year | — | 1949[1] |
| introduction year | — | 1950[1] |
| weight | — | 34 kg (75 pounds)[1] |
| power | — | 580 watts maximum[1] |
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