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Old 18th February 2023, 12:54 PM
G Willis G Willis is offline
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Join Date: Mar 2017
Location: UK
Posts: 43
Default Help needed the Pre-3 CF CSS Config.

Hi,

I decided I wanted to run my CF in CSS mode as I have rearranged my room and I now need faily long interconnects.

I am getting some odd behaviour and I wanted to check the orientation of the MJE340 is correct which I believe it is according to the manual.

I am pretty sure the other BPJ aand the LEDs are in the right way.

I cannot seem to get anything except a faint light from the LEDs and I cant get the voltage across the pot and the R7 above about 200mv. The readings are very unstable and are effected by the action of the screwdriver. In addition there does not seem to be any heater glow in the valve. I have checked all the input power and its fine. Pictures here.

https://drive.google.com/file/d/1-1-...ew?usp=sharing

https://drive.google.com/file/d/1-2E...ew?usp=sharing

Thanks, Graham
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