Found it! Bally A3 Solenoid Driver, AS-2518-51 Sound Board, 6 Digit display and an MPU!

[SirBadger]

All missing on my Pin, will take a punt on working unknown.

 

[stevebm1]

think ive got a spare solenoid driver board somewhere

 

[paddythegreek]

I'm sure i got a sound bd and a 6 digit display lurking in my stock. Display deffo works but unsure about the snd bd.

 

[knazzo]

I have a fully working AS-2518-51 sound board.