[TenTec] TenTec Digest, Vol 174, Issue 18

[Dan W8KMX]

Josh and/or Ed:
I would like to have that potential mod for the C-21 RF amp.
If possible, send me a copy at w8kmx at bellsouth.net.
Regards,
Dan, W8KMX

-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On
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Sent: Monday, June 19, 2017 12:00 PM
To: tentec at contesting.com
Subject: TenTec Digest, Vol 174, Issue 18

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Today's Topics:

   1. Century 21 audio hum (Curt Benjamin)
   2. Re: Century 21 audio hum (Josh Gibbs)


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Message: 1
Date: Mon, 19 Jun 2017 12:28:33 +0000 (UTC)
From: Curt Benjamin <k8aicurt at yahoo.com>
To: <tentec at contesting.com>
Subject: [TenTec] Century 21 audio hum
Message-ID: <257969003.1320676.1497875313504 at mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8

Josh, did you ever get a chance to check that bridge
rectifier? 


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Message: 2
Date: Mon, 19 Jun 2017 07:44:16 -0700
From: Josh Gibbs <gibbsjj at gmail.com>
To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
Subject: Re: [TenTec] Century 21 audio hum
Message-ID:
	
<CAGCptuwrGbLgoYctF+9hPgKoiWuHPtzuxv3PmfAm6es0VOjM0w at mail.gm
ail.com>
Content-Type: text/plain; charset="UTF-8"

Hi Curt,

I didn't mess with the bridge rectifier. When I removed the
transformer from the chassis, the noise went away. I've made
a shield out of steel for the transformer, but have not yet
had time to install it. I will post back with results when I
get that done.

Also, Ed W3NR is mailing me a page containing info on a
pre-amp RX mod written by Dick Frey (former T-T engineer and
designer of the C21). I will scan that and post it when it
arrives. I may give that a go as it is supposed to improve
the RX sensitivity significantly.

Hope everyone is getting ready for Field Day this weekend. I
can't wait!
This will be my first Field Day as an Extra... passed the
test last week!

-Josh WA7FPV/AE

On Mon, Jun 19, 2017 at 5:28 AM, Curt Benjamin via TenTec <
tentec at contesting.com> wrote:

> Josh, did you ever get a chance to check that bridge
rectifier?
>


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End of TenTec Digest, Vol 174, Issue 18
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