Power Amplifier with STK40xx Series Module
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The series STK40xx is power amplifiers in completed form in a nutshell. They are characterized by the very good quality of sound and their 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. They do not need a lot of special knowledge of manufacture, only that attention in pins, in order to they do not break, and one good power supply. Details for the various types of series, voltage of work and the output power, see the Table A
Part List
R1-4 =1Kohm R10=10Kohm C8 =100 nF 100V MKT
R2= 33Kohm R11= 680ohm C11 =1 nF 100V MKT
R3-8=100ohm C1=560 pF 100V ceramic or mylar C13 =100 uF 25V
R5= 0.22ohm 5W C2-7 =1 uF 63V MKT C14=10pF 100V ceramic or mylar
R6=10ohm 2W C3-12 =220 uF 63V L1 =3μH [15 turns of 1mm around R6]
R7= 6,8ohm 2W C4-5-10 =100 pF 100V ceramic or mylar F1-2 =2A Fuse fast
R9=12Kohm C6-9 =47uF 63V IC1=STK4036……STK4044
| Type | Pins |
Maximum Power Supply |
Typical Power Supply |
Power into 8R |
THD for Power max. 50 W |
|
|
± V |
± V | W |
20 HZ-20 KHZ into 8R Load |
|||
| Gain=28db | Gain=40 db | |||||
| STK 4036 |
15 |
±53,5V | ±35V | 50 | 0.003% | 0.008% |
| STK 4038 | ±58V | ±40V | 60 | 0.003% | 0.008% | |
| STK 4040 | ±63V | ±43V | 70 | 0.003% | 0.008% | |
| STK 4042 | ±67V | ±46V | 80 | 0.003% | 0.008% | |
| STK 4044 | ±74V | ±51V | 100 | 0.003% | 0.008% | |
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source :: http://users.otenet.gr/~ATHSAM/power_ampl_stk.htm
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