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Product data: Charge Amplifier
Product data: Charge Amplifier

... from the case, and therefore from the machine frame, ground loop interference problems are largely eliminated. When the 2634 is used with normal, single ended transducers, the microplug adaptor JJ 0207 supplied allows the use of normal, low-noise coaxial cables; this adaptor automatically grounds on ...
Page 1 of 8 6moons audio reviews: darTZeel NHB
Page 1 of 8 6moons audio reviews: darTZeel NHB

... equals poor frequency response. During his 20-year design period, Hervé feels he pulled it off. The 108 employs zero global feedback and combines it with frequency response to 1MHz. To accomplish this, darTZeel chose bipolar transistors -- ultra linear and fast -- for a straightforward signal path: ...
Lecture 8: Maxwell`s Equations and Electrical Circuits.
Lecture 8: Maxwell`s Equations and Electrical Circuits.

High-performance differential VCO based on armstrong oscillator
High-performance differential VCO based on armstrong oscillator

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View/Open - University of Hertfordshire
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... excess of 300MHz, THD below 0.7% f o r a lV,,k-,,k differential input signal, and dynamic range in excess of 70dB can be achieved. ...
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Kirchhoff`s Laws

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... undertake one more step, which allowed slight further improvement of the Rx audio with little additional work or risk. Following the suggestions seen in the PA0CMU site http://members.ziggo.nl/cmulder/drake.htm#bookmark6 I experimented with changing a few capacitors and 2 transistors in the 2nd IF b ...
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Regenerative circuit



The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.
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