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Where to buy the kit: https://s.click.aliexpress.com/e/_DDY... My blog: https://www.pakequis.com.br/ Assembly, adjustments, measurements and tests of a JLH 1969 class A amplifier kit. The kit uses 2N3055 metal transistors at the output and can give up to 10W of power at the output. 00:00 Introduction 01:31 The Kit 04:11 Assembling the transistors 06:36 Adjustments 10:39 Tests and measurements 15:09 Test with speaker 15:54 Test with music