[NLRS] WTB: Isolation transformer - 110vac

[Doug Reed]

Your bias supply should require minimal current. If you have a
grounded filament supply or an unused low voltage winding you could
use a small transformer such as 110 to 6.3V 0.3A and connect it to the
filament winding to generate your bias voltage. Has the added
advantage that it is very small and you can probably hack it together
from just about anything you find. I would avoid this technique if
your filament supply is significantly above or below ground for any
reason.

73, Doug Reed, N0NAS.

On 10/4/19, ka0ryt1 via NLRS <nlrs at mailman.qth.net> wrote:
> Hello  . I  will be  coming to the cities  tomorrow  and am in search of a
> 110vac to 110vac isolation  transformer  to use as a grid bias supply  on my
> fqa specials  ...... Anyone  have 1 or 2 laying  around  gathering  dust  ??
> Otherwise I will be  trying to  get  one  from  axeman's  ( have to  stop
> there for some other components )........Thanks , Ron KA0RYT  Sent from my
> Samsung Galaxy smartphone.
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