ESU Sound Decoders > Sound Decoders > English Electric class 20 sound decoder and speaker

Whistle while you work! This is our own version of the '20' and we think it tops anything else in the market! Plenty of 'top end' for that realistic 'thrash'! Remember, we can re-blow your existing sound decoder if you're unhappy with it, for £11.50.
NOTE; 23mm speaker supplied is too wide to fit in the narrow body of an 00 gauge model. We suggest using the 50448 speaker (20mm x 40mm)
Below is a list of the Function keys and their assignments applicable to this model.
F1. Sound on/off
F2. Horn 1 – double tone
F3. Horn 2 – alternative double tone
F4. Horn 3 – single tone
F5. Buffering up to a train
F6. Coupling up
F7. Buffer ‘clash’ on wagons
F8. Flange squeal
F9 Shunting mode. Press once the loco goes slowly press again and you are back to normal control.
F10. Accelleration/Decelleration. Press once to over ride, press again to cancel.
F11. Aux 1
F12. Aux 2