31-10-2018, 04:30 PM
If you are making something home brew the heaters can be run from a transformer of an odd less useful voltage.
I have looked into this several times.
Old printers used to have a 40V transformer that could run heaters in series and HT via a tripler for a small amplifier.
I have looked into this several times.
Old printers used to have a 40V transformer that could run heaters in series and HT via a tripler for a small amplifier.







