Class C oscillator VTTC circuit
#Class C
#VTTC
#vacuum tube
#high frequency
#resonant circuit
#RF
#tuning
#oscillation
#feedback
#tank circuit
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Big vacuum tube tesla coil with GU-81M
The Vacuum Tube Tesla Coil (VTTC) is a Tesla coil that utilizes vacuum tubes as switches. It features a self-oscillating circuit with two Russian GU-81M tubes connected in parallel. High voltage is sourced from two Microwave Oven Transformers (MOTs) that...
Cyclotron II
The white feedthroughs are for connecting the RF high voltage to the D's (not shown). The copper pipe perpendicular to the main pipe serves as the vacuum line. The D's are equipped with screw posts on the side for connecting...
egan fet silicon power shoot out volume 10 high frequency resonant converters
Distributed power systems are commonly used in telecommunications, networking, and high-end server applications, utilizing a 48 V bus voltage derived from the telecom industry. This 48 V bus supplies several isolated point-of-load (POL) converters that power the end loads, with...
High frequency crystal oscillator
One section of the MC10101 is configured as a 100 MHz crystal oscillator, with the crystal placed in series within the feedback loop. An LC tank circuit is utilized to tune the 100 MHz harmonic of the crystal, which can...
RF Remote Control Encoder and Decoder Chips Explained
Creating a universal remote control system has become quite straightforward. One can acquire the necessary chips, assemble them, and the high-tech remote control device will be operational. This document discusses specific remote control chips designed for this purpose. The IC...
RF Decibel Meter Circuit
A DIY RF decibel (or power) meter is an essential instrument in any radio workshop. However, accurate, wideband models can be quite costly.
A DIY RF decibel meter serves as a valuable tool for measuring the power levels of radio frequency...
Rf Upconverter For Tvro Subcarrier Reception
This converter utilizes a 40673 MOSFET to heterodyne the 5.5 to 8 MHz TVRO subcarriers to the FM broadcast band, enabling the use of a stereo receiver for high-fidelity stereo reception of TV sound subcarriers. Z1 is a prepackaged 100...
Amp Gain Block
The feedback in this circuit is DC coupled, connecting directly from the plate of the second triode to the cathode of the first triode, as opposed to the earlier design which utilized AC coupled feedback. The previous version exhibited instability...
RF Actuated Keying Monitor
Sending Morse on a rig without a sidetone is not impossible, but is not particularly pleasant either. This battery-powered monitor has been designed to provide an audible indication of keying for those whose rigs lack a CW sidetone. Its sensor...