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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: Dynaco 6B4G conversion, round 100000000.... posted by MIchael Samra on January 21, 2006 at 20:04:01:
I didn't find the 6922 brittle sounding, but I'm using 6DJ8 Amperex globe at the moment.As for the filament supply, I want to separate the driver filaments from the 6B4G filaments which are raised at 60v over ground by the cathode resistors. I also want to lighten the load on the Dynaco power trannie which is probably at the margins of overload, although I haven't done the math. It was a weak point in the design even when completely stock. I'm not looking at AC vs DC, although the real issue will be which one is physically smaller as I'm out of room. A separate 6v 2a wallwart would do the trick as I would just run the wire in. A larger 3a would let me run higher current tubes like 6N1P if I wanted. These take .6a and x4 = 2.4a.
For that matter I don't know where I'd put the PIO caps. There's one spot where the quad cap goes, maybe put the first one there and leave the second one below chassis on the cap replacement board.
Ultimately I want to build a much larger chassis and use my current design as a starting point and restore the Dynaco to near stock.
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Follow Ups
- Re: Dynaco 6B4G conversion, round 100000000.... - zacster 06:25:39 01/22/06 (2)
- Re: Dynaco 6B4G conversion, round 100000000.... - MIchael Samra 20:54:32 01/22/06 (1)
- Re: Dynaco 6B4G conversion, round 100000000.... - zacster 04:51:07 01/23/06 (0)
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