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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: Yes, particularly for car batteries. posted by Alex S on November 13, 2007 at 17:47:07:
Hi.
I hate to put any current limiter or even a serie resistor upstream of the tube heater circuit, maybe for sonic reason.
So instead of putting a resistive current limiter downstream of the SLA cell powering the tube heaters of my phonostage, I do it the tedious way.
I add a basic 6V AC-DC adapter, which I found sleeping for ever in my dump bin, & hook it up outboard to the phonostage so that I can pre-heat the tube heaters first with the 6V adapter, before the SLA cell kicks in. So the damaging surge to the cold heaters is eliminated, and the tubes will last longer (IMO, long enough already - these are the original 50-year vintage tubes came as stock with the phonostage.)
c-J
c-J
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Follow Ups
- While you mentioned battery powered tube heaters... - cheap-Jack 08:24:17 11/14/07 (0)
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