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Posts tagged 20/40 watt

Project for 20 or 40 watt fluorescent tubes – Inverter

This is a low-cost project for 20 or 40 watt fluorescent tubes, However the most efficient is to use a 40 watt tube or two 20 watt tubes in series. It is a circuit you can put together from junk box components or build from a kit. It is very simple to build and requires […]

Timer using LM555

Timer using LM555 Electronic Circuit Timer using LM555 LM555 Electronics Schematic Diagram Cascaded Time Delay Circuits part 14

Calibration Protocol display of the monitor

Calibration Protocol the display of the monitor will instruct the user on when to apply zero and span gas. The system will automatically adjust its internal settings to the proper calibration values without further intervention by the user. Upon completion of a successful calibration, the system will exit the calibration mode. Date stamp of last […]


5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284 5 DOT LED LINEAR LEVEL METER DRIVER circuit using KA2284 The KA2284 are a monolithic integrated circuit disigned for 5-dot LED level meter drives with a built-in rectifying a amplifier, it is suitable for AC/DC level meters such as VU meters or signal meters. FEATURES […]

Radio transmitter receiver circuit

Radio transmitter receiver circuit using TD7626F and TD7626FN

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