OK thank you Peter, I was sure that my IF bandwidth was better than 1 MHz, but wondered for a while why I could not see better then the 1 MHz grating. I guess one can have less than 1 dot off, but not less than a dot on.
It then occurred to me about the size. The tube having a single focusing grid and lowish final anode, I was wondering if this was the best or should I be seeing better. I will try and take a picture and post it later I need to dig out my tripod for the camera.
Adrian
It then occurred to me about the size. The tube having a single focusing grid and lowish final anode, I was wondering if this was the best or should I be seeing better. I will try and take a picture and post it later I need to dig out my tripod for the camera.
Adrian
Learning as I go!
Youtube EF91 Valve
Youtube EF91 Valve
