This is a interesting list of different takes on the Tape Measure Yagi DIY Build:
The tape measure antenna.pdf (arrl.org)
wb2hol/projects/rdf/tape_bm.htm
Fox Hunt Offset Attenuator – 3rd Planet Solar / KC9ON
Tape Measure VHF/UHF Yagi Antenna – W5NOR – SCARS
Tape Measure Yagi Build – Nashua Area Radio Society (n1fd.org)
Tape Measure Yagi Antenna Construction (ccars.org)
How To Build A 70CM Tape Measure Yagi Antenna – YouTube
VHF 3EL Tape Measure Yagi. – NT1K – Welcome