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Posts tagged mic

PRE AMP MIC

PRE AMP MIC 3 TR USING BC550C BC556 BC546 PRE AMP MIC 3 TR USING BC550C BC556 BC546 R1_____________ 1K5 R2_____________ 220K R3_____________ 18K R4_____________ 330R R5_____________ 39K R6_____________ 56R R7,R10_________ 10K R8_____________ 33K R9_____________ 150R R11____________ 6K8 R12,R13________ 100R R14____________ 100K C1_____________ 220nF 63V C2_____________ 220pF 63V C3_____________ 1nF 63V C4,C7__________ 47µF 50V C5,C6__________ […]

High power amp modules

High power amp modules High power amp modules High power amp modules High power amp modules using STK4141

Touch Switch Circuit

Touch Switch with Active Remote Circuit using PN2907, 2N2222, 74C14

why should be improved DDR2 memory to DDR3

DDR3 offers a substantial performance improvement over previous DDR2 memory systems New DDR3 features all transparently implemented in the memory controller, improve the signal integrity characteristics of DDR3 designs soo that higher performance is achieved without an undue burden for the system designer. If proper consideration is given to any new DDR2 memory design it […]

How to Make 2.3 GHz Pre-Amp (Part 1)

This article is own by Grant Hodgson. . Eagle-eyed readers may have noticed the reference to an ATF-54143 in John G3XDY’s notes on the pre-amplifier testing results at the November Adastral Park round table, published in the March 2002 Newsletter. Here are some more details of this pre-amp which has some rather interesting properties :- […]

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