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* [[Media:1947_Tektronix_Catalog.pdf|Tektronix 1947 "Catalog" (511 only)]] | * [[Media:1947_Tektronix_Catalog.pdf|Tektronix 1947 "Catalog" (511 only)]] | ||
}} | }} | ||
The 511 was ''' | The 511 was Tek's second product (first was the [[101|Type 101 Video Calibrator]]), and the company's '''first oscilloscope''', [[introduced in 1947|introduced in June 1947]]. | ||
An improved version, the 511A, with a regulated CRT power supply (s.b.) was [[introduced in 1948|introduced in November 1948]]. | |||
[[Howard Vollum]] was directly involved with the design of the 511. | |||
{{BeginSpecs}} | |||
{{Spec | Bandwidth | 5 Hz to 10 MHz (8 MHz with 2-stage amplifier); no DC coupling }} | |||
{{Spec | Rise time | 40 ns (50 ns with 2-stage amplifier) }} | |||
{{Spec | Deflection | Without amplifier, 27 V per cm maximum, 200 V/cm minimum, DC or peak to peak AC. 1-stage amplifier, 2.7 V/cm maximum, 40 V/cm minimum. 2-stage amplifier, 0.27 V/cm maximum, 4 V/cm minimum. }} | |||
{{Spec | Input | 1 MΩ // 40 pF; 600 V max. DC+peak AC }} | |||
{{Spec | Sweep | 100 ns/cm to 10 ms/cm + variable; ×5 magnifier }} | |||
{{Spec | Trigger | 0.5 to 50 V (Peak) sine or pulse ≥50 ns }} | |||
{{Spec | X input | DC coupled via 100 K potentiometer and sweep amplifier; 1.5 V/cm or less; DC to 800 kHz }} | |||
{{Spec | CRT | [[5CP]], 3 kV acceleration }} | |||
{{Spec | Calibrator | Clipped sine wave of power line frequency, ranges 0-0.3, 0-1, 0-3, 0-10, 0-30, 0-100 V<sub>p-p</sub> }} | |||
{{Spec | Outputs | Sweep sawtooth, 20 V<sub>p-p</sub>; Positive and negative gate, 40 V<sub>p-p</sub> }} | |||
{{Spec | Weight | 511 – 29 kg (65 lb); 511A – 23 kg (50 lb); }} | |||
{{Spec | Dimensions | 15½" high, 12½" wide, 21 ½" deep }} | |||
{{Spec | Power | 511 – 180 W; 511A – 105-125 or 210-250 V, 50-60 Hz, 230 W }} | |||
{{EndSpecs}} | |||
(511A unless noted otherwise) | |||
There is also a 511AD, where the "D" in the model number indicates that it has a L-C [[delay line]]. | There is also a 511AD, where the "D" in the model number indicates that it has a L-C [[delay line]]. | ||
==Internals== | ==Internals== |