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Old 16th November 2012, 02:33 PM   #3441
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Quote:
Originally Posted by vgeorge View Post
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.....
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Old 16th November 2012, 02:43 PM   #3442
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Originally Posted by Salas View Post
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...
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Old 16th November 2012, 02:50 PM   #3443
Salas is online now Salas  Greece
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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.
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Old 16th November 2012, 02:59 PM   #3444
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Originally Posted by Salas View Post
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...
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Old 16th November 2012, 03:08 PM   #3445
Salas is online now Salas  Greece
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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.
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Old 16th November 2012, 03:25 PM   #3446
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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...
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Old 17th November 2012, 07:09 PM   #3447
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Salas started a new SSHV2 regulator, to be sure I'm starting only soldering the CCS but don't measure nothing in the TP?
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Old 17th November 2012, 08:24 PM   #3448
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I don't know for sure but have I to connect R5 to ground to measure only the CCS across R5?
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Old 17th November 2012, 10:13 PM   #3449
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Yes but don't use more than 50V.
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Old 17th November 2012, 11:19 PM   #3450
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OK thank you
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