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mikeydee · 23rd Feb 2014, 7:50 pm

More good news for Sussex fans.

My tester has sprung into meaningful life once I removed the D16. I had a pair of new matched JJ EL34 to hand and found they gave Ia bang-on at 75mA and Gm just under 10.

Previously it was fine on the other valves that I used - mainly audio stuff like ECC83 and 6L6.

Could the variation in experience be explained by diode tolerance or mounting? My D16 mounted on top of the board on the pins next to the R12 resistor - It's just a thought.

@Les, I don't think you need to hide - you have contribute such a lot to this project already.

23rd Feb 2014, 7:50 pm	#1109
mikeydee Tetrode Join Date: Aug 2011 Location: Bristol, UK. Posts: 67	Re: The "Sussex" Homebrew Valve Tester. More good news for Sussex fans. My tester has sprung into meaningful life once I removed the D16. I had a pair of new matched JJ EL34 to hand and found they gave Ia bang-on at 75mA and Gm just under 10. Previously it was fine on the other valves that I used - mainly audio stuff like ECC83 and 6L6. Could the variation in experience be explained by diode tolerance or mounting? My D16 mounted on top of the board on the pins next to the R12 resistor - It's just a thought. @Les, I don't think you need to hide - you have contribute such a lot to this project already.