I own one of the Heathkit Tunnel Dippers. Nice and small. But my go to
GDO is the Millen 90651 (tube type) or the 90652 (solid State). Have the
full Low Frequency coils set, Tone Modulator and Dipping Wand
Jeff N2LXM
Amateur Radio Operator
American
Patriot
Proud Father of Two US Marines