The link majortom posted in post 3 has 145 entries and several different pictures.
Here are some other places to look
www.digitalhome.ca
www.digitalhome.ca
Here are some other places to look

Centipede-4 repacked antenna
After checking, and inventing several different antennas, have decided on the Centipede-4 repacked antenna & 4 bay uhf bow-tie for vhf. (indoor antennas) Centipede-4 repacked antenna has very flat gain. (470-608 mhz) Centipede-4 Repack antenna (470-608 mhz) nec code: CM "Centipede-4...

Results of SBGH vs DBGH vs C2 Test
In my unscientific experiments done with homemade DBGH, SBGH and C2 antennas the DBGH was the most effective. The SBGH marginally outperformed the C2. The construction was not ultra-precise but was more careful than some of the antennas whose pictures have been posted here. They are within...