Simplistic Mosfet HV Shunt Regs

[king4joy]

Originally Posted by vgeorge

Go to the tubes/valves directory and on forum tools choose post a new thread.

Sorry sir...cannot find the post a new thread click.....

[king4joy]

Originally Posted by Salas

Open a thread in tubes forum showing the circuit diagram and revealing photos of the build. Explaining what you need to sort out. There many can inspect and investigate/contribute. I will look into it too. Its much more of a topic than a PSU matter alone.

I am learning how to start a thread......and what would you suggest as the correct topic for the thread???

In the mean time, if you think my questions are off topic, please send your answers to my email address king4joy@.....com

Thankyou...

[Salas]

Go the the tubes category and you will see new thread button to the top left. Name it ''Help kill insect like noise in my tube amp'' or something.

P.S. Don't post emails openly, they can be spam targets. If I think of something to post too it will be in your thread.

[king4joy]

Originally Posted by Salas

Go the the tubes category and you will see new thread button to the top left. Name it ''Help kill insect like noise in my tube amp'' or something.

P.S. Don't post emails openly, they can be spam targets. If I think of something to post too it will be in your thread.

Thankyou...but on second thought...the questions are kind of related to SSHV2, because the insect like noise is noticed after using the SSHV2 board...

[Salas]

Change to resistor loads to compare, maybe you got oscillation on your CCS for loads, check with scope that your B+ rails are clean straight lines (ac in for scope button). Make sure its not a minor buzz from grounding or heaters arrangement that was covered by hum before and now you noticed.

[king4joy]

Salas, I will change back to resistor loads and compare and report back....I do think that the CCS loads are main part of the problem....I am using Rod's board for my filament and he suggested to use LED instead of resistors for biasing.....I will work on all these with time and helps from you and this forum...this is part of the fun of DIY....I think...

[merlin el mago]

Salas started a new SSHV2 regulator, to be sure I'm starting only soldering the CCS but don't measure nothing in the TP?

[merlin el mago]

I don't know for sure but have I to connect R5 to ground to measure only the CCS across R5?

[Salas]

Yes but don't use more than 50V.

[merlin el mago]

OK thank you