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PCB Repair

Circuit Board Repairing

Amplifiers Audio using LA4558

Amplifiers Audio using LA4558 circuit board

Headphone amplifier ic

Headphone amplifier ic circuit using TL072, BD139, BD140

Projection 50″ TV, Power Supply Problem?

afterburner asked: Tried to paste a circuit diagram into this problem, but no luck. PROBLEM DESCRIPTION: Believe the problem is in the power suppy. Model: Hitachi CU 5002k 50″ 3 tube projection. No picture, raster or sound. I have no scope. Have VTOM. Output from the Sub Power Supply is, and should be, 122 VAC […]

Electronic Dice Software

IP Electronic Dice is a personal Electronic Dice for windows. Play games using electronic dice. Ideal for any kind of board game or even Dungeons and Dragons.

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