No, you have a driver, which is the pre-selector, the other knobb dips the
plate.
Loading appearently doesn't exist. Your tun ing network is more modern, and
has only one tuning control.
Mike has a "pi" network.
Think of it kind of like an antenna tuner inside the radio.
There are a switchable coil and two capacitors, which impact each other on
either side of that final output.
You start the loading at 0, then dip the plate.
Bring up the loading and dip the plate again, until maximum output is
reached then back it off a bit to be nice to your tubes.
At least on the old A.M. rigs, the higher in frequency, the more loading is
needed. This can change with the resonnent frequency of the coil,
naturally.
For example if you tune 30 meters on a t4x series radio, and you do this
from the 40 meter band position the loading will be high.
If you do it from the 20 meter position, the loading is almost at 0.
I am sure there are guys here who know a lot more and can clarify it all.
Your 830 is designed to demand a much more matched antenna, so only diping
the plate is necessary.
Those old PI networks would match anything, because nobody had antenna
tuners.
You could easily resonate an antenna with a 10/1 SWR.
-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Colin McDonald
Sent: Tuesday, April 07, 2015 10:58 PM
To: [log in to unmask]
Subject: Re: Maybe time to say good bye
so I'm probably miss tuning my 830s as well.
I simply tune the one knob for max noise on receive, switch to cw mode hit
PTT and tune the other knob for the highest pitch when using the tw1 power
mode tuning aid.
Radio puts out about 120 watts on all bands.
73
Colin, V A6BKX
-----Original Message-----
From: Butch Bussen
Sent: Tuesday, April 07, 2015 1:03 PM
To: [log in to unmask]
Subject: Re: Maybe time to say good bye
I don't know about the 102, but I can tune up my 101 easily with a tw1.
It has been a long time since tube theory, but how would underloading harm
the tubes? I really don't think you would hurt anything, if you are loading
to heavy, the dip is harder to find. I never did get hands on a 102, so
don't know the radio.
73
Butch
WA0VJR
Node 3148
Wallace, ks.
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