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On off Switch Control

On off Switch Control circuit using CD4027 On off Switch Control circuit using CD4027

Echo Repeater circuit

Echo Repeater circuit using IC AN6551, MN3005, MN3101 and TR C536 Echo Repeater circuit using IC AN6551, MN3005, MN3101 and TR C536

pci express power management

pci express power management PCI Express devices must meet all of the requirements of PCI Express. This checklist is also used as one of the requirements to qualify a PCI product for the Integrator’s List by creating a paper trail of testing for PCI compliance. Add-in card vendors that want their products on the Integrator’s […]

Schema Timer for Intervals

Schema timer for intervals of 5 to 30 minutes incremented in 5 minute steps. Timer function to activate an output with a time interval can be set. Done via the timing of setting the value (preset value). The timer will work if given the input and a clock pulse. For the clock pulse is supplied […]

Digital volume control using DS1669

This digital volume control has no pot to wear out and introduces almost no noise in the circuit. Instead, the volume is controlled by pressing UP and DOWN Digital volume control using DS1669

Make original 100W guitar amp

The amp is rated at 100W into a 4 Ohms load, as this is typical of a “combo” type amp with two 8 Ohm speakers in parallel. Alternatively, you can run the amp into a “quad” box (4 x 8 Ohm speakers in series parallel – see Figure 5 in Project 27b, the original article) […]

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