PRE AMP MIC 3 TR USING BC550C BC556 BC546
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__________ 100µF 50V
Q1,Q2_________ BC550C
Q3__________ BC556 65V
Q4__________ BC546 65V
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