I am a fully licensed supplier.
WHIRLWIND -SOUND
SKU: SND-WHIRL
C$60.00Price
SET OF 5 (U4.L1/U19.L1/U20.L1/U21.L1/U22.L1)
Williams: Whirlwind
ROM Revisions
Sound Version L-1
U4 : Checksum: 3FB0
Speech Version L-1
U19 : Checksum: 40AF
U20 : Checksum: 5AAE
U21 : Checksum: BD54
U22 : Checksum: 184C