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InPowered battery charger circuit

InPowered battery charger circuit diagram schematic 6V-12V using NE555, LM7812, 2SA671, 1N4002, BC549 auto battery charger circuit On a lithium-ion cell, 3.8V/cell indicates a state-of-charge of about 50%. It must be noted that utilizing voltage as a fuel gauge function is inaccurate because cells made by different manufacturers produce a slightly different voltage profile. This […]

Relay Driver Control circuit

Relay Driver Control circuit using NE555, 741, 1N4001, SL100, D313, C106

Where can I get TV circuit diagram to repair my own TV? Can’t seem to find it on the find on the web?

SukhdevS asked: The model is Sony Trinitron KVJ14P1S (14 inch). I stay in KL, Malaysia.

LEVEL METER DRIVER

7 DOT LEVEL METER DRIVER Audio circuit using KA2288 7 DOT LEVEL METER DRIVER circuit using KA2288 The KA2288 is a monolithic integrated circuit consisting of 7-dot LED level meter drives.  KA2288 employs a low noise comparator which provides 10dB lower noise in the LW, MW band than the previously mentioned LED drivers. FEATURES LED […]

Circuit electronics Carrier Oscillator

Carrier oscillator is a crystal controlled oscillator using two numbers of BC548. The circuit does not use any coils or turned circuits. First BC548 is used as oscillator second BC548 is used as buffer. The carrier oscillator frequency is offset by 1.5 KHz above ladder filter (IF) frequency. The carrier oscillator frequency can be varied […]

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