I think I have a faulty key switch on the panel for my Beta 28. One of the terminals is loose. the terminal itself, not the spade connector, and wobbling it produces an intermittent loss of both the rev counter and engine battery volt meter. The stop solenoid is also not working and I'm only getting 6v approx at the terminals. I think that's fed from the key switch too. I was somewhat shocked to be quoted £56 + VAT for a new one plus £13 + VAT for a key by BETA. It looks to me like a pretty standard Lucas-type 4 position switch. Any advice on replacing it with something as bit cheaper than the BETA option gratefully received!