• Home Brew Pair of GI-7B's in an L4B Cabinet Running Legal Limit 160-10 Meters 4/30/2006
• GI7B Cooler Flaw and repair
• Heath SB-200 Retrofit Using the GI-7B, July 2006
• Heath SB-230 Retrofit Using the GI-7B, September 2006
• Amp Supply LA-1000 Retrofit using the GI-7B, October 2006

Pozy's first rule for home brewing amplifiers:
"If your amp is going to require more than 100 Watts of drive, you need to get a different tube"