GM class 66 sound decoder and speaker (21)

£117.50 £109.99

Disappointed with the current sound in your class 66 or simply wish to bring a new dimension to your model? Up to notch 8 available giving you plenty of GM thrash!
We recommend the use of the larger 20mm x 40mm speaker with this decoder.
Apologies for the price rise which is due the the exchange rate with the Euro.


Below is a list of the Function keys and their assignments applicable to this model.
F0. Lights on /off
F1. Sound on/off
F2. Horn 1, two tone
F3. Horn 2, two tone
F4. Horn 3, single tone
F5. Buffer up
F6. Coupling up
F7. Flange squeal
F8. Sound of sanding the wheels for grip on acceleration
F9. Shunting mode, Press once the loco goes half speed, press it again and you are back to normal control.
F10. Acceleration/Deceleration speed over ride.
F11. Aux1
F12. Aux2


There are no reviews yet.

Be the first to review “GM class 66 sound decoder and speaker (21)”

Your email address will not be published. Required fields are marked *