> How does one tune an amp that uses instead of a tapped inductor, but
> uses a roller one?
Depends on whether the amplifier has a band switch which selects fixed
"Tune" capacitors for each band or a continuously variable "Tune" cap.
In the former case, one uses the inductor the same way one would use
a tune cap - dip the plate, peak with the Load cap.
In the latter case, one typically sets the inductor to a specific
value for each band (check the manual) then tune/load as with an
amplifier having a tapped inductor.
73,
... Joe, W4TV
On 2021-09-13 3:36 PM, Joe wrote:
Here's a Question,
Been hitting a dead end. I have had various AMPs all my Ham life, from
1975. But all have been like the SB-220,
SB-220,
SB-200
FL-2100,
Henry 2K
etc.
Plate cap, load cap, tapped inductor.
and old school tube rigs Drakes mostly.
So very familiar with tuning it up.
Now I have been You Tubing, with zero results.
And just plain old Googleing,,,, and all I get are results about antenna
tuners.
how to tune an amplifier with a roller inductor?
I can not find an answer to that question anywhere.
How does one tune an amp that uses instead of a tapped inductor, but
uses a roller one?
Joe WB9SBD
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