PG1N's HAM Radio Site Multiband HF Projects Amplifiers 18 dB LT1253 DDS Amplifier by K8IQY This 18 dB gain amplifier was built Manhattan style to evaluate the Linear Technology LT1253 dual video amplifier as a candidate ... PG1N's HAM Radio Site 136 kHz Projects Amplifiers 100 Watt 13.8 Volt Amplifier for LF by GØMRF This Class D switching amplifer was designed to enable anyone with an interest in LF to get onto the band quickly and ... Power Amplifier Speaker Protection Circuit Schematic ... Power Amplifier Speaker Protection Circuit Schematic While switching a power amplifier on, a loud thump sound is heard to sudden heavy discharge current through 1 200 Transistor Circuits Don't think transistor technology is obsolete. Many complex circuits have one or more transistors to act as buffers, amplifiers or to connect one block to another. Dynamic Microphone Preamp Zen Internet Notes: This is a 3 stage discrete amplifier with gain control. Alternative transistors such as BC109C, BC548, BC549, BC549C may be used with little change in performance. Simple FM Radio Bug electronics diy In the mid 1970s large numbers of small FM transmitters, operating in the FM radio broadcast band (88 108 MHz) appeared on the market. It started with a self build ... Electronic Schematics Circuit Zone Electronic ... This is the latest BH1417 FM Transmitter design from RHOM that includes a lot of features in one small package. It comes with pre emphasis, limiter, stereo encoder ... Circuit Zone Electronic Projects, Electronic ... This RF Amplifier designed for FM broadcast using a single 2SC1946 VHF Power Transistor. This 10 30W RF amplifier circuit provides an appropriate power boost with an ... Semiconductor and Integrated Circuit Devices ON Semiconductor offers a comprehensive portfolio of innovative energy efficient power and signal management, logic, discrete, and custom semiconductor solutions. A Plethora Of NE 555 data NE555 Tutorials Page Schmitt Trigger: Figure 9 (above) A very simple, but highly effective circuit. In this circuit, the ICM 7555 and NE 555 "cleans up" all noise on the input signal ... Voltage Controlled AC Light Dimmer PCB Heaven The first thing that comes to someone's mind when thinks of a dimmer, is a potentiometer that controls the light intensity. If a potentiometer is used, things can be ... BASIC CIRCUITRY of Metal Detection Talking Electronics HOW IT WORKS The beat frequency metal detector employs two oscillators: a very stable reference oscillator and a search oscillator.

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simple microphone preamplifier by bc547

simple microphone preamplifier by bc547

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