DutchGFX
1000+ Head-Fier
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- Dec 1, 2012
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Anyone?
Actually, I can't believe I missed this...
Is your filament grounded at any point? It looks like you're grounding the negative side of your filament.
Anyone?
You need to include detailed pictures and descriptions if you want people to be able to make suggestions.
I will post detailed pictures ASAP when I get home.
Did you add grid stoppers and a grid leak? The grid leak grounds need to be connected directly to the output jack ground which is then connected to the star ground. Star ground needs to be connected to safety earth.
Do you have PS schematic? You need more than a single cap before the regulator.
Is there a fuse?
Some of those solder joints (especially on the wires) look suspect.
Your plate CCS has an impedance of ~10K which sort of defeats the point of CCS.
What does your 6sn7 heater supply look like? Is it grounded, or referenced to something?
Can you post an actual schematic? Include all the details -- including all the power supplies and how they are connected. In particular, use 2A3's instead of indirectly heated triodes.
What do you mean, what do I mean? The actual schematic. A drawing that includes every component and connection on your project.