electronics-amplifier tutorial

There is Amplifier circuit based on STK400xx series. The amplifier circuit will give you good quality of sound unexpensive too since STK40xx series have low price. It is easy we make a power amplifier using only few external components. The STKxxxx amplifiers, for them we will find in enough eponymous stereo amplifiers , but also in enough activety loudspeakers.

Component list

R1-4................................. 1Kohm
R2.................................... 33Kohm
R3-8................................. 100ohm
R5.................................... 0.22ohm 5W
R6.................................... 10ohm 2W
R7.................................... 6,8ohm 2W
R9....................................12Kohm
R10..................................10Kohm
R11.................................. 680ohm
C1.................................... 560 pF 100V ceramic or mylar
C2-7................................. 1 uF 63V MKT

C3-12............................... 220 uF 63V
C4-5-10............................ 100 pF
C6-9................................ 47uF 63V
C8................................... 100 nF 100V MKT
C11................................. 1 nF 100V MKT
C13................................. 100 uF 25V
C14................................. 10pF 100V ceramic or mylar
L1................................... 3μH [15 turns of 1mm around R6] 100V ceramic or mylar
F1-2................................ 2A Fuse fast
IC1=STK4036.................. STK4044

STK40xx Series:

STK 4036 > Supply: ±35V - ±53,5V; Power (8R load): 50W.
STK 4038 > Supply: ±40V - ±58V; Power (8R load): 60W.
STK 4040 > Supply: ±43V - ±63V; Power (8R load): 70W.
STK 4042 > Supply: ±46V - ±67V; Power (8R load): 80W.
STK 4044 > Supply: ±51V - ±74V ; Power (8R load): 100V.
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