100nF 50v capacitor. They are perfectly fine for general de-coupling but not for accurate use. To get closer to 100nF you could use two connected in parallel.
Hornby R8218 14.1mm Metal Disc Wheels - Spare Parts and Train Accessories for Hornby OO Gauge Model Railway Sets, Coupling and Modelling Tools - Disc Wheels (Pack of 10), Scale 1:76
Disc Ground Signals - Double Disc Type - OO Gauge (Pack of 6)
Hornby R8097 12.6mm Disc Wheels - 3 hole - Spare Parts and Train Accessories for Hornby OO Gauge Model Railway Sets, Coupling and Modelling Tools - Disc Wheels (Pack of 10), Scale 1:76
Gaugemaster CDU Capacitor Discharge Unit Model Railway Layout Point Motor Access
Zimo SUPERCAP68 Stay-Alive (Energy Storage) Super-Capacitor 6800uF 16V
Mega MK4 Capacitor Discharge Unit For Point Motors Peco Hornby & More All Gauges
