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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: Because this is 2006, not 1942 posted by Gusser on July 26, 2006 at 14:31:37:
Hi ,
The 'sound of DC heaters' does not apply in your case as the heaters are not within the signal path . But does your equipment actually suffer from hum and if so is this hum heater or hum-loop induced ? If it does not hum then why the need to implement DC heaters , hence my comments . If it aint broke , don't fix it :) I only use DC for DHTs as my speakers are sensitive , I don't feel the need for anything but AC for IDHT's , there's just no point unless it's for phono stage useage . All you need to do with AC is to ensure that the heaters float above the cathodes (around +20V) and if your IDHT's hum with AC (non-phono stage environment) then there's something flawed with either the design or the valves that are in itcheers
...FB
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Follow Ups
- Not the correct approach but up to you - fatbottle 15:41:16 07/26/06 (3)
- It's not built yet - Gusser 10:55:57 07/27/06 (2)
- Re: It's not built yet - fatbottle 23:42:06 07/27/06 (1)
- RE: 12AX7 Drive Capability - Gusser 09:40:22 07/28/06 (0)
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