The AA0ZZ Keyer From 4SQRP

As much as I tweet about my fondness for building things in Altoids (or Altoids-type) tins,  I have just 3 projects in these useful and affordable enclosures; a Softrock 40: an antenna switch: and a morse code practice buzzer: When Altoids first became popular, I saved my tins and ended up with around 15-20 of […]