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Do It Yourself (DIY) paradise for tube and SET project builders.

RE: ideas on variable filament supplies?

I have got some of the halogen trans. The dc to dc converters are variable so I can try them on anything. I not sure what frequency they run on.I will get to the halogen supplies when I build my big amp. I am finding it hard to find a good reason to stop listening to my 10y amp at present.

actually I do know now Working Frequency:300KHZ

below is some of the bigger ones I bought.


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