Fix broken Raymarine ST2000+ tiller pilot 

Good morning, Thank you for sharing this very informative vidéo. I allow myself to ask you for the references concerning O-Ring seal. Thanks

Dear sir ,, ı have same ray marine 2000 tiller ..my problem is electronic...There is 4 LT30 mosfet transistor ..2 of broken but i could not find any where ..can you please write me name of the transistor of your card ..even i search ST semiconductor i could not find ..