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Re: [TenTec] Omni-D with an Annoying 1khz Tone (MadScientist)

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] Omni-D with an Annoying 1khz Tone (MadScientist)
From: "Rodney" <w3krq@dejazzd.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 9 Jan 2019 14:00:06 -0500
List-post: <mailto:tentec@contesting.com>
I guess I have to get a Omni so I can get info on Ten Tec@ contesting.com I have only a Orion II 238b and a Centurion. Rodney

-----Original Message----- From: forum4ll@verizon.net
Sent: Wednesday, January 09, 2019 1:54 PM
To: tentec@contesting.com
Subject: Re: [TenTec] Omni-D with an Annoying 1khz Tone (MadScientist)

Gary,

The 560pf cap is back in and the display is back to normal!! Indeed, the scan pin on the MK50398N has a function of timing the updates to the display (I think). Sigh, but the 1khz tone is back just as loud as it was before. I'm trying to follow this
1khz tone with my scope. Hopefully I'll find the culprit.

Thanks

Date: Tue, 8 Jan 2019 19:21:01 -0600
From: MadScientist <dukeshifi@comcast.net>
To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Omni-D with an Annoying 1khz Tone

Please let me know how it works out.

Gary



On Jan 8, 2019, at 7:03 PM, <forum4ll@verizon.net> <forum4ll@verizon.net> wrote:


Gary,

I will put that 560pf back in and see if it corrects the display. I still think there is an issue with the Preset Amp board but I'll have to make some voltage measurements on the 3 transistors tomorrow.


Thanks,
Lyman KK6LPW
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