Sorry... I'm out.
73, Jim W7RY
On 3/7/2022 10:26 PM, Joe wrote:
YUP YUP YUP.
jOE wb9sbd / w9et
On 3/7/2022 8:51 PM, Jim W7RY wrote:
Joe
Is this the amplifier you removed the tank circuit and replaced with
a roller coil?
And increased the plate voltage as well?
73, Jim W7RY
On 3/7/2022 5:13 PM, Joe wrote:
I have been for quite some time now fighting with this Frankenstein
of an AMP trying to get it to work correctly.
It works making power and LOTS of it, But the Load Cap, is all
funky. When measured with a VNA the amount of "C" varies as
expected. And in the right amounts.
But in use, it does little to nothing at all. fully meshed fully
un-meshed almost no difference at all. at 1500 watts out the min and
max "C" on the load cap changes the output maybe 50 watts thats all.
Crazy!
So taking a break on this AMP so i don't loose what hair I still
have, by the way if you have any ideas what may be happening please
let me know!
But I was thinking how much difference does an AMP actually make in
a contest.
And thinking strictly mathwise what 10 to 15 db stronger. so only 2
to 3 S units? seems not like a major deal.
BUT I took from 3830 the top ten from Multi single High and low
power, in this past weekends contest
and single op high and low powers.
took out the so2r and others similar.
And the Multi single high power almost made twice as many contacts
as the low power! WOW!
and in the single op High vs low. made also almost twice as many Q's
As one that has never contested with an amp,
does it really make it that much better!?
Don't forget about the amp if you have any ideas?
Joe WB9SBD / W9ET
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