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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: Filament bias and PP DHT posted by fatbottle on January 26, 2007 at 04:42:02:
I've got ST 46s apart from a few globes I want to hang onto. I'm waiting to build something very similar - I have LL1635PP and LL1660/5 to put into a 3 stage amp. If you want to try out the LL1635 for measurement purposes I shouldn't need it for the next month or so. The amp I'm currently listening to has the LL1621/6 which seems to work OK - it's a close cousin of the LL1635. I've been using constant current sinks with some success, and the single filament supply goes to both of the diff pair tubes in parallel. All I can say is that it certainly works that way. Also very silent, which is nice. My present amp goes 3A5 to 1H4 to 2a3 - not ideal but I ran out of space so used smaller tubes. Sounds very detailed, and since it's entirely DHT, so it should! Andy
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Follow Ups
- Re: Filament bias and PP DHT - andy evans 12:11:28 01/26/07 (2)
- Re: Filament bias and PP DHT - fatbottle 13:07:55 01/26/07 (1)
- Re: Filament bias and PP DHT - andy evans 14:42:28 01/26/07 (0)
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