Custom DIY Bally Solenoid Plus Sound Board (available to US customers)

Last Updated: 03Feb25

This board adds DIY custom sounds to early Solid State (SS) Bally and Stern pinball machines using the Bally AS-2518-16, AS-2518-22, Stern SDU-100 (and rev B432), or Alltek replacement solenoid board. This sound board is designed plug into the solenoid board (J3 and J4) without additional harnesses. Sound files will play as it detects both momentary and continuous solenoid commands. It is designed to add to the simple stock sounds of the machine.



This board has the following features:
1. Plays 1 of 4 sounds for each of the 15 momentary solenoid commands
2. Plays 1 of 4 sounds for each of the 3 continuous solenoid on and off commands. There is no sound support for the coin-enable continuous solenoid.
3. Plays up to 5 background repeating sounds triggered by the flipper-enable continuous solenoid.
4. Can play special callouts: a power up sound, an attract sound every 3 minutes when the game is not being played, and a hurry-up custom sound during game play when the game is idle for more than 30 seconds.
5. Four sound banks to choose from.

Although the Solenoid Plus Sound Board works in any Bally or Stern machine with the early solenoid board, it works best with the machines listed below because they are mostly quiet with no background sounds:

Bally SS Chime Machines (8): Freedom, Night Rider, Evel Knievel, Eight Ball, Mata Hari, Bobby Orr's Power Play, Strikes and Spares, Black Jack.

Bally -32/-50 Sound Board Machines (7): Six Million Dollar Man, Playboy, Voltan Escapes Cosmic Doom, Paragon, Harlem Globetrotters on Tour, Dolly Parton. I do not recommend this board for Star Trek, KISS, Lost World, nor Supersonic. I have much better game-specific custom Early Sound Boards for these machines.

Bally -51 Second Generation Sound Board Machines (12) when you turn off the background: Ground Shaker, Future Spa, Silverball Mania, Space invaders, Rolling Stones, Mystic, Viking, Hotdoggin, Frontier, Skateball, Speakeasy, BMX.

Stern SS Chime Machines (4): Pinball, Stingray, Stars, Memory Lane

Stern SB100 Sound Board Machines (8): Lectronamo, Wild Fyre, Nugent, Dracula, Trident, Hot Hand, Magic, Cosmic Princess.

This is a custom DIY (Do It Yourself) sound board. Upon delivery, the board is set to sound bank 0 which has some generic sounds to get you started. There is a power up quote, backgrounds from vintage Bally machines, hurry up quote for pause during game play, attract quotes every 3 minutes between games, and some test button quotes. The board comes with four sound banks which you can modify.
Sound Bank 0: Generic Sounds
Sound Bank 1: Duplicate of sound bank 0
Sound Bank 2: Diagnostic function callouts for everything
Sound Bank 3: Diagnostic file number callouts

The board has three different versions to choose from depending on the distance between J3 and J4 on your solenoid board. I also offer adapters if you decide to upgrade your solenoid board.

Version A: For Bally AS-2518-16 and AS-2518-22 solenoid boards (1450mil J3-4)
Version B: For Stern SDU-100 solenoid boards (1400mil J3-4)
Version C: For Alltek aftermarket solenoid boards L1, L2 and L3 (1350mil J3-4)

Adapter C-A: Adapts Alltek solenoid boards to Version A Solenoid+ Sound Board
Adapter B-A: Adapts Stern SDU-100 solenoid boards to Version A Sol+ Sound Board
Adapter C-B: Adapts Alltek solenoid boards to Version B Solenoid+ Sound Board


Click on image to see larger

Check out one of my YouTube videos on this board:


Order Details: I only have a couple of boards built up right now. These are the version A ones which plug into the stock Bally AS-2518-16 and AS-2518-22 solenoid boards with 1.45 inches between the J3 and J4 connectors. Email me at geeteoh@mchsi.com and tell me what you would like and I will email you a pay-pal invoice for the item(s). You can pay with pay-pal or regular credit card. This is for US only right now.

$220 Solenoid Plus Sound board Version A with microSD card and printed manual
$10 Adapter C-A which will adapt the above board to the Alltek solenoid board
$40 4-inch, 8 ohm, 30 watt speaker, grille, mounting block, 6 foot speaker cable assembly

Plus $10 shipping






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GEETEOH Electronics

geeteoh@gmail.com

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