Actually, it reads 125ma for 75W input.
The recheck and set grid drive.
This is a WHOLLY different animal than a Plate Modulated AM rig for RTTY
use. That is what the Apache TX-1 is.
Screen modulation is a horse of a different color.
Not to mention that Novices did NOT have AM privileges.
Bob - N0DGN
Bob Macklin wrote:
The Heath instructions for the DX-60 specifically state that for Novice
operation to only increase the loading to 100ma for Novice operation (75W)
or to 150ma for normal (full power) operation.
Bob
K5MYJ
----- Original Message -----
From: "rbethman" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service"
<[email protected]>
Sent: Sunday, November 23, 2008 1:08 PM
Subject: Re: [AMRadio] Low Power AM?
Bob,
I'm NOT Pete. He may feel insulted. LOL
You're using a PI network, NOT a link tuned system. If you reduce
loading, AND maintain plate dip, You will indeed reduse output AND go
NON-RESONANT.
This opens a whole other can of worms.
Bob - N0DGN
Bob Macklin wrote:
No Pete,
I am saying to reduce the load capacitor and maintain the dip on the
plate
capacitor.
It's the same as reducing the coupling on a link coupled final.
Bob
K5MYJ
----- Original Message -----
From: "rbethman" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service"
<[email protected]>
Sent: Sunday, November 23, 2008 12:48 PM
Subject: Re: [AMRadio] Low Power AM?
Bob,
While the plate transformer may well handle that, you are tuning off
resonance of the PI network. That results in tuning off the Plate dip.
I would NOT imagine that this concept would do the 6146s any good at
all.
I would suspect that a reduction of Drive would be wiser.
Bob - NoDGN
Bob Macklin wrote:
Can't you just run at reduced input by reducing the loading? Then run
the
tube(s) at the CCS rating. The power transformer should take that.
Bob
K5MYJ
----- Original Message -----
From: "rbethman" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service"
<[email protected]>
Sent: Sunday, November 23, 2008 12:14 PM
Subject: Re: [AMRadio] Low Power AM?
George,
Good question! There is NO mention of RTTY operation ANYWHERE in the
Apache Manual.
I'm also not sure how you can safely reduce the power out put
following
the tuning procedures, WITHOUT doing some damage to some components.
It does just fine on AM and CW. Mixed results on SSB with the SB-10.
Bob - N0DGN
--
Bob - NØDGN
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