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The Marshall Major (Model 1967 [1]) was a bass guitar amplifier made by Marshall. It was introduced in 1967 as the "Marshall 200" (in reference to the power of the amplifier). It had a plexi panel and two inputs in one channel, but in contrast with the 100 watt heads made by Marshall, the first series had split tone controls similar to the ...
A test light, test lamp, voltage tester, or mains tester is a piece of electronic test equipment used to determine the presence of electricity in a piece of equipment under test. A test light is simpler and less costly than a measuring instrument such as a multimeter , and often suffices for checking for the presence of voltage on a conductor.
Schematic of Philco model 84 A superheterodyne cathedral radio from 1933 that uses a regenerative detector. (Note: The capacitor for the detector's control grid is the "tickler coil" winding on the IF transformer.) "Radio Design Worksheet: No 39 — Detectors" (PDF). Radio. 29 (8): 51– 52. August 1945.
Fisher's first receiver was the model 500, a mono AM/FM receiver using two EL37 output tubes. It had a brass-plated face panel and an optional mahogany or "blonde" wooden case. It had a brass-plated face panel and an optional mahogany or "blonde" wooden case.
A signal demodulated with a product detector will have a higher signal-to-noise ratio than the same signal demodulated with an envelope detector. On the other hand, the envelope detector is a simple and relatively inexpensive circuit, and it can provide higher fidelity, since there is no possibility of mistuning the local oscillator.
The most modern testers perform a multitude of the below tests and are fully automated. Examples of modern testers include the Amplitrex AT1000, the Space-Tech Lab AudioTubeTester, the Maxi pre-amp tester and the maxi-matcher (power tubes only) by maxi test and the new, and somewhat more primitive, DIVO VT1000 by Orange Amplification. While the ...
It's a work-from-home job that some people would love. Every week, a box full of the latest sex toy technology lands on your doorstep. You try the toys, rate them, and are compensated over $39,000 ...
A zero crossing detector is a comparator with the reference level set at zero. It is used for detecting the zero crossings of AC signals. It is used for detecting the zero crossings of AC signals. It can be made from an operational amplifier with an input voltage at its positive input (see circuit diagram) [ clarification needed ] .