A small circuit; using the Mar-6 Amplifier IC; this kit will provide as much as 20 db gain. Connect at receiving antenna input; will boost signals from 1 MHz to 1000mHz; two RF amplifier kits may be cascaded for even greater gain. Instructions tell how to substitute a couple of capacitors for use at low; broadcast-band frequencies. Use with Scanners; Ham receivers; SWL receiver etc. You could add a metal case and RF connectors for permanent use. May be used to boost signal for æscope or frequency counter as well.