Great web site folks! I'm looking for a schematic that covers the older D&A 12 tube phantom 500 amplifier. I've gone as far as I could without a schematic, but I've reached my high water mark. About 25 years ago I moved from Cleveland to Cincinnati leaving my radio equipment for my brother to use. When I arrived back a year later, most of my equipment was gone including a like new Browning Eagle mark IV with a gold eagle D-104, my phantom 500 and a slew of microphones, meters, etc. My brother knew nothing about any of it. 25 years later talking to a few local folks on the radio, I got the amp back for free since I was able to identify it. The guy I got it from acquired it for parts and paid nothing for it. There were some parts missing but there was enough to put it back together. I acquired 4 extra tubes that were better than 75% so all the tubes on average are about 75% and none of them less than 70%. If anyone has this schematic, I would greatly appreciate it! Thanks in advance!