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Amplifier on tda7293 in the antistatic package and amplifier tda7293 in the test stand in the photo. In the test mode, an honest and pure 10 w signal was received on the load of 8 ohms (45 w). The power limit in the test stand is connected with the low power transformer and the power supply voltage (+/-) 18 v after the rectifier. When the input signal is increased and the output sinusoid (clipping) is cut, the detector pulses appear on the amplifier chip output 5. Clip detector in the amplifier works, although the output on the board is nowhere and is not output. An excellent amplifier for a beginner amateur radio. You can use in this form (of course by increasing the radiator and transformer) or make small changes and get a quality sound. Seller recommend. The package with amplifiers went for a long time, but it came without damage, and the amplifiers themselves are assembled qualitatively, the boards are laundered, the declared characteristics are satisfied.
2019-07-10
Sharpening leaves much to be desired, but the price saves everything.
2019-10-12
Excellent smooth adjustment, variable resistor with power on function. the board has led work board. test with led lights, everything works fine.In the photo-power supply 12 v, with minimum voltage and with maximum.Delivery and installation-everything is fine.I recommend.
2019-10-11| Image | Part # | Description |
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Mfr.#: TCR2LE085,LM(CT OMO.#: OMO-TCR2LE085-LM-CT |
LDO Voltage Regulators LDO Voltage Reg 200mA 320mW 0.85V |
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Mfr.#: TCR2LE095,LM(CT OMO.#: OMO-TCR2LE095-LM-CT |
LDO Voltage Regulators LDO Voltage Reg 200mA 320mW 0.95V |
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Mfr.#: TCR2LE09,LM(CT OMO.#: OMO-TCR2LE09-LM-CT |
LDO Voltage Regulators LDO Voltage Reg 200mA 320mW 0.9V |