Busy times in Amplifier Land.

Still Building the new pedal model of the Sore-Throat Amplifier, and
manufacturing Terrestrial Coils for the ERSA-1  Space antennas-

You Can read more about the Space antennas in THE RADIO HUNTERS BLOG.
 Audio amps for the portable antennas are smaller than the Guitar amps. and include a diode de-modulator
and an audio caps filter section.

The set up is used for listening to Sun Noise, radio noise bouncing off the moon, locating Satellites, and other hobby uses. If you want to see an ERSA-1 Terrestrial Coil unit, look it up on Etsy.com under sore throat guitar amplifiers.