DIY Audio Projects Forum

Issues with some 2a3c (Shuguang)
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Author:  shannon69 [ 15 Jan 2020, 03:07 ]
Post subject:  Issues with some 2a3c (Shuguang)

Hello, i have couple of Shuguang 2a3c.
I have some problems with both of them. The filament does not light. I have 2.47 Vdc and 4 A at the transformer.
It only heating slowly. I check the filaments continuity and it ok.
What could be wrong!?

Author:  Woodo [ 19 Jan 2020, 06:06 ]
Post subject:  Re: Issues with some 2a3c (Shuguang)

are you in a position to post your circuit you have used and some pics with detail. someone may be able to spot the problem. cheers

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