63 Motorola 3-channel console stereo

[Electronic M]

I think I had the opportunity to get one off the curb when I was ~6-8 years old. Spotted it when my folks were driving Grandma to the airport.....I got a chance to look, but no room in the car, it rained after that, and the folks would not let me get it claiming the rain must have ruined it...I was not happy.

[jr_tech]

and it has 8 tubes in it, a push-pull center channel and a single-ended remote stereo channels it has 6 6BM8 tubes, 1 12AX7 tube and 1 6CA4 Rectifier tube

Anybody here know how this stereo uses the 6 6BM8 tubes. Seems like only 4 would be needed to function as described.

jr