Small Circuits.
| Title | Description | Source | Author/Designer |
|---|---|---|---|
| Under-Voltage Indicator | A simple under-voltage detector for the station supply. | Radcom, June 2003 (Technical Topics) | Eric Christer Z21FO |
| Watchdog timer | A watchdog timer to prevent 'transmit' lockups. | Radcom, April 2003 (Data) | Andy Talbot G4NJT |
| 1KHz to 30MHZ Oscillator | A Simple single chip HF oscillator. | Radcom, June 2001 (Technical topics) | Unknown |
| Home-brew mobile mike | A great project for mobile operators. | Packet Radio - Jan 2001 | John G8MNY |
| Home-brew QRP SWR Meter | A great project for QRP operators. | Packet Radio - Jan 2001 | John G8MNY |
| Home-brew QRP Power Meter | A great project for QRP operators. | Packet Radio - Jan 2001 | John G8MNY |
| Simple Drill Speed controller | Essential for the DIY'er | Packet Radio - Jan 2001 | John G8MNY |
| Clip-on RF Current meter | Essential for the Radio constructor | Radcom - Dec 2003 | G0SNO |
| MIDI - PC Interface | A simple digital audio interface | Unknown | Unknown |