The classic analog envelope filter. Responds to picking dynamics.
Released in 1978. Originally named 'Touch Wah' but changed to 'T Wah' in 1980 due to trademark issues (similar to the DF-2 story).

| Image | Name | Year Start | Year End | Made In | For Sale | Collection | View |
|---|---|---|---|---|---|---|---|
No img | TW-1 (Touch Wah) Japan • Touch Wah | 1978 | 1980 | 🇯🇵Japan | - | Details → | |
![]() | TW-1 (T Wah) Japan • T Wah | 1980 | 1987 | 🇯🇵Japan | - | Details → |
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