peter berrett wrote:

Does anyone know who manufactured these sets and whether they are still
available to be purchased?


many pages out there. A Google search for

crystal radio sets

turned up many sites. Some of them are below:

http://www.clarion.org.au/crystalset/

http://www.thebest.net/wuggy/

http://www.midnightscience.com/

http://www.midnightscience.com/kits.html

http://journeytoforever.org/edu_radio.html

http://www.schmarder.com/radios/crystal/

http://www.electronics-tutorials.com...-radio-set.htm

http://www.streettech.com/archives_DIY/crystalSet.html

http://store.yahoo.com/mbaciu/rocrad19512.html

http://www.bluesky.com/warren/radios/rocketradio/




mike