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In the Forum: Melquiades Amplifier
In the Thread: DHT driver & input

Post Subject: ….and it might not be always a good thingPosted by Romy the Cat on: 1/31/2009

Actually my leading though how to put one ass on all impedance chars is to have 5K primary with 12-16 coils of secondary. The 4K would be fine load for 2A3 type of pates. It would not be difficult to remap the secondaryes to get 7K-8K that would be OK most likely demanding for YO186. And then if I would like to jump to 10s with their very high plate impedance and the need of 30-50K load then I might use some OPT’s secondary as primary and had a huge transforming ratio. The only thing that holds me is that I do not need this transformer for a long run. To drive MiniMe’s HF section I need a cheap and easy available tube, obviously it will not be 10 or YO186. For the DSET use in Melquiades I would not need too much turns to built up inductance and I do not need bass in there. For Melquiades channel it shell be just enough turns in primary to get the coupling. I might even consider to make as it was done in my FH channel – just one turn of primary foul and to cover it with a layer of secondary. Yes, there are many ambiguous ways to do the things and I have no desire to actually try them – this is my problem. I also pressmen that a performance of a tube and OPT in a full-range application and in HF DSET application might be different as the sigals doe not have LF modulation in second case… and it might not be always a good thing. Go figure…

The Cat

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