24-07-2015, 12:16 PM
Hi.
Well the interstage transformer has an O/C secondary so I'm thinking of going down the R C coupling method, I'm hoping to hide the components as best as possible.
The original selenium rectifier has been disconnected and a single IN4007 has been fitted with no ballast resistor. The HT rises to 375v quickly then falls to 280v which way too high. I’ve actually got a new selenium rectifier and am actually contemplating fitting it just to see how the HT behaves. Failing that I'll select a suitable resistor for the IN4007 to give me around 180v HT which is close to what it should be.
Well the interstage transformer has an O/C secondary so I'm thinking of going down the R C coupling method, I'm hoping to hide the components as best as possible.
The original selenium rectifier has been disconnected and a single IN4007 has been fitted with no ballast resistor. The HT rises to 375v quickly then falls to 280v which way too high. I’ve actually got a new selenium rectifier and am actually contemplating fitting it just to see how the HT behaves. Failing that I'll select a suitable resistor for the IN4007 to give me around 180v HT which is close to what it should be.
