191: Difference between revisions
Jump to navigation
Jump to search
(creation) |
No edit summary |
||
| Line 14: | Line 14: | ||
Image:Tek_191_right.jpg|Right internal view | Image:Tek_191_right.jpg|Right internal view | ||
Image:Tek_191_rear.jpg|Rear view | Image:Tek_191_rear.jpg|Rear view | ||
Image:191.png|Schematic | |||
</gallery> | </gallery> | ||
Revision as of 09:33, 2 May 2010
The Tektronix Type 191 Constant Amplitude Signal Generator is a sine wave source introduced in 1966. It covers frequencies from 350 kHz to 100 MHz in seven bands. The output amplitude can be adjusted in calibrated steps from 5 mV to 5 V in three ranges. The oscillator is an Colpitts oscillator using a 7119 tube. A peak-to-peak detector made with two GaAs diodes measures the swing of the oscillator and produces a DC feedback signal that controls a series voltage regulator that supplies power to the oscillator. The calibration procedure in the manual makes use of a 661 to accurately view the output waveform.
-
Front view
-
Top internal view
-
Bottom internal view
-
Left internal view
-
Right internal view
-
Rear view
-
Schematic
