Demolition derby pinball 1978 home version

Specialty:

Theme:	Sports – Demolition Derby
Specialty:	Non-Commercial Machine [Home Model]
Notable Features:	3 balls per play. Flippers (2), Pop bumpers (4), Slingshots (2), Kick-out hole (1). Plexiglas playfield cover. Pressing either flipper button operates both flippers simultaneously. Uses 1 steel ball. No adjustment for 5-ball play.

Non-Commercial Machine [Home Model] 

Tilt penalty: ball in play.

Games measures 45 inches long by 22 inches wide. The adjustable legs are 34 inches long.

Pop bumper bodies appear to be 70s Bally units with a "100" sticker added, using one solenoid per two bumpers. Pop bumpers, slingshots and rollovers are "switchless," using the conductive properties of the ball to connect two electrical contacts. While a slight bit clunky for response, this made for a very low maintenance machine. Slingshot "rubbers" are actually metal springs, which act as contacts.

Flippers are interconnected (non-independent), and powered by the same solenoid. Flippers also appear 3" long, but their fulcrum point is further inward than typical, making their action similar to a 2" flipper. Factory angle of flippers was very shallow, making their action awkward.

Nonadjustable tilt mechanism is a small metal bell on a ball-strand chain, suspended within a metal loop, similar in function to, but generally higher in sensitivity than a tilt-bob.

A 1000-point rebound switch in the lower right playfield is identified by its triangular yellow plastic marked "SMACK 100" which incorrectly labels it as a 100-point switch.