Last Stern game to have an electro-mechanical chime unit. The next game from Stern (Stern's 1978 'Lectronamo') used an electronic sound board.
Pictured in this listing is a game with a Pintone sound board and speaker mounted in the lower cabinet. While the owner believed this was a factory installation, an operator reported that Wico Corporation, a major parts supplier, sold these Pintone boards at the time of this game and that many operators installed them.
Manufacturer data for Memory Lane:
Production Start Date: 6/26/78
Production End Date: 9/7/78
Quantity produced: 2624