Ok you Agon modifiers.....I have a comment and question. I just finished modifying my preamp so the filament heaters are powered by battery. Yeah, 6 volt rechargeable gel cell battery. I simply charge it with a separate filament tranny and turn off the power to the filament filter when the battery is fully charged.
More quiet background and I like the result very much. A nice lift in SQ for sure.
Have you folks done this?
Mine is set up to run 100% battery and if and when the battery drains I can simply turn on the filament filter power supply.
More quiet background and I like the result very much. A nice lift in SQ for sure.
Have you folks done this?
Mine is set up to run 100% battery and if and when the battery drains I can simply turn on the filament filter power supply.