[time-nuts] Fix Trimble Oscillator??

Chuck Forsberg WA7KGX N2469R caf at omen.com
Fri Apr 22 00:49:56 UTC 2011


The 12 volt current is 76 milliamps starting or running.
I increased the voltage slightly and the temp rose to 32 deg C.
The frequency offset gets down to about 50 Hz.
Looks like the oven wants 18 or 24 volts.

So .... has anyone disassembled one of these ovens
and made repairs?

On 04/21/2011 07:37 AM, jmfranke wrote:
> A precision oscillator that far off usually indicates the oven is 
> malfunctioning.
>
> John  WA4WDL
>
> --------------------------------------------------
> From: "Chuck Forsberg WA7KGX N2469R" <caf at omen.com>
> Sent: Thursday, April 21, 2011 10:31 AM
> To: "time-nuts" <time-nuts at febo.com>
> Subject: [time-nuts] Fix Trimble Oscillator??
>
>> Is it possible to open up the Trimble oscillator module
>> and adjust its frequency?  It is off by 60 to 120 Hz,
>> too far for the DAC voltage to pull it in.
>>
>> -- 
>> Chuck Forsberg WA7KGX N2469R     caf at omen.com   www.omen.com
>> Developer of Industrial ZMODEM(Tm) for Embedded Applications
>>   Omen Technology Inc      "The High Reliability Software"
>> 10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430
>>
>>
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>
>
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-- 
Chuck Forsberg WA7KGX N2469R     caf at omen.com   www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
   Omen Technology Inc      "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430




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