Other Projects

This is the page for my projects that don't use a microcontroller.


Power Controller

This project can be used to control the power to a resistive load such as an electric heater.

MAX713 NiMH Battery Charger

Version 1 charges 2, 4 or 6 NiMH "AA" cells.
Version 2 charges 1, 2, 3 or 4 cells.

Computer Audio Amplifier

LM380 based audio amplifier.

Battery Voltage Booster

A 12 volt to 18 to 22 volt, 5A switching converter, using the LT1270A switching boost regulator
gps charger

12 to 5 Volt 1 Amp Switching Regulator

A 12 volt to 5 volt switching regulater, using an LM2575
mic amplifier

Microphone Amplifier

Mobile mic booster using a 741 op-amp
MFJ-264 end view

Refurbishing the MFJ-264 Dummy Load


Gel Cell/SLA Battery Charger


Simple 10 MHz Crystal Oscillator

MDSR Converter

MDSR / DRM Software Defined Radio

Remote Doorbell Controller

Remote Doorbell Controller


Voltage Booster for LED Light

A 3.6 volt to 20 volt, 1/2A switching converter, using the LT1303 switching boost regulator

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