[AMRadio] DX-100B, output falls off gradually

[David Knepper]

Check the bleeder resistors.

David Knepper, W3CRA/W3ST
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----- Original Message ----- 
From: "L L bahr" <pulsarxp at embarqmail.com>
To: "Discussion of AM Radio in the Amateur Service" 
<amradio at mailman.qth.net>
Sent: Saturday, November 19, 2011 7:44 PM
Subject: Re: [AMRadio] DX-100B, output falls off gradually


> Would you think maybe the energy stored in the filter caps and choke might 
> have something to do with this?
>
> Lee, w0vt
>
> ----- Original Message -----
> From: "Rick Poole" <wa1rkt at arrl.net>
> To: amradio at mailman.qth.net
> Sent: Saturday, November 19, 2011 2:15:01 PM
> Subject: [AMRadio] DX-100B, output falls off gradually
>
>
> Well, this is interesting...  Running some tests on my DX-100B into a
> monitor scope and dummy load, I find that in AM mode, when I turn off
> the Plate switch, the RF output as shown on the scope falls off
> gradually over a period of about 1 second rather than dropping 
> immediately.
>
> Obviously, after I get my TR relay built and in line and hook up the
> receiver, it's not going to be good if the TR relay drops out while
> output power is still falling.
>
> Any idea what causes this?  Is this a known problem with a known fix?
>
> Rick WA1RKT
>
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