DIY
(C) Arny Sinen 1998
________________________
Bring to your attention yet another scheme miniusilitelya.
This amplifier is ideal for the Spectrum, because He has a very
small current consumption, as well same for small stress it
produces the maximum output power that it is very important for
weak power supplies. For this amplifier can connect speakers
with an output power up to 5W. With more high-power amplifier
can be burned. By the way, he can burn if you apply
at him all the 12 volts and keep in running condition for about
10 hours, so Use radiator. With the radiator can be
to Use with no time limits.
Mono amplifier. For me is not clear why you would need stereo
AY891X. In first of all different standards through
(A-left, B-common, C-right; A-left,
C-right, B-common) and you do not hear that
conceived by the author. Second of two amplifiers need twice as
much power, and for many PSU is dead.
1 X 1.5
Circuit diagram:
R1 = 1,8 K
C1 = 0,47 mF
C2 = C3 = 4,7 mF
C4 = 47mF
C5 = 1000mF
Concept:
Amplifier performance:
Pout = 1W - nominal (1,5 W - max)
Upow = +3 ... + 12V
Ipotr (Uout = 0) = 10mA
Ipotr _max_ne_bolee_150mA_ (microamperes)
frab = 40 ... 18000Hz
Uin = 10 ... 100mV
Rin = 10 Ohm
If you have any questions, please contact us at 500:812 / 28.07
@ SPbZxNet to: Arny Sinen.
Can also order ready-made amplifiers,
willing to pay the designers.
