using new technology on old machines

[Fred Cisin]

On Tue, 16 Jun 2015, tony duell wrote:
> Quite probably, but the modern mains-side switcher is more 
> troublesome and a lot less pleasant to repair. I think I'll stick
> with the room-heater in my 11's :-)

Well, you could use a switcher, paralleled to the mains with a heater.
Just as you can use a CFL along with a heater for some applications
that call for an incandescent.