Not sure what RCA chassis these tuners (sub) are from but I have a case of them from Indianapolis that were purged from RCA when they shut down. Some are slightly rusty on the outside and have 11 pins on the bottom besides the ground tabs. They say "tuner 4707 PH5 and TEMIC 3X8 329". The "F" connector for the rear is 5/8" inch long.

Anyone need any?