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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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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: I'd opt for the LL1635/5ma or perhaps the /20 posted by arend-jan on January 26, 2007 at 09:12:50:
Hi ,
I believe the filament bias idea would work better with CCS fils and a variable series resistor . Change in parameters due to ageing is the main concern . I'm already considering the 5mA offset version . The 1635PP would be ideal with the smaller 3A/110A DHT but I'd prefer to send my type 46 into action . Whatever I'll use , the valves will be burnt in and matched on the Avo , then matched in situ in the amp . The output stage is next on the hitlist , I only have a 5mA offset margin with the c-core output transformer .cheers
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Follow Ups
- Re: I'd opt for the LL1635/5ma or perhaps the /20 - fatbottle 10:59:56 01/26/07 (0)
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