Forum Discussion
camperpaul
Jan 10, 2014Explorer
wa8yxm wrote:
-- snip --
... you can build one for less than 50 bucks, though you will need a scope (100-200 as I recall) to use it.
I do not know if the (TDR*) plans were ever published but I've seen the unit in operation and know the inventor.
*Added for clarity
The plans were published in "73 Magazine" sometime back in the '60s.
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