On Wed, Jan 29, 2025 at 08:39 AM, grahammjmason wrote:
I'm using a 12 volt dc 3 amp power supply.
There lies your problem, our experience is, that the Kato's connected to the YD8008/6940 combo need 15V PSU of about 400mA minimum.
Reason: Both YD8008 (1.2V) and YD6940 (0.7) introduce a voltage drop. So effectively your Kato's only receive 10.1 Volts. That's not enough.
On Wed, Jan 29, 2025 at 08:39 AM, Iain Morrison wrote:
I wonder if the YD8008 are the correct switches to be using with Kato turnouts.
Yes they are. Although a YD8116 can supply the current, it provides steady power, which destroys the Kato's ;)
Greets,
Karst
karst.drenth