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200W Leach Amplifier
Posted on Monday, March 7, 2011   •   Category: Amplifiers

200W Leach Amplifier

Article about building Marshall 200W Leach Amplifier. For many years I looked for construction of HiFi amplifier wit a good parameters, enough power reserve and simple construction. I built a couple of amplifiers with integrated circuits MBA810, TDA2005, LM3886, but I was disappointed by their output quality and noise. I decide to built a classic construction with discrete components and bipolar transistors. Construction from Mr. Dudek was interesting, but I didn't like used components and complexity. All of my requirements satisfied construction of the Leach Amp. Circuit author publicates in a February 1976 in american journal. From these days circuit was not practically changed. Little changes are descripted on authors page.

     LM3876 GainClone Amplifier
     25 W Class A Amplifier
     70W TDA7294 Amplifier
     LM3886 GainClone Amplifier
     HI-FI Valve Amplifier
     LM386 Utility Amplifier
     100W LM3886 Parallel Stereo Power Amplifier
     400W Stereo Marshall Leach Amplifier
     50W LM3886 Power Amplifier
     20 Watt Stereo Amplifier with TDA2005
200W Leach Amplifier

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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