[time-nuts] WWVB updated remodulator schematic 2 mistakes and aquestion

paul swed paulswedb at gmail.com
Tue Jul 8 21:22:54 EDT 2014


Good catch. Man that copy and paste really nailed me.
I grabbed the original wwvb rcvr. Appears another piece is missing. Thats
pin 1 is the 3.3V in.
Updated schematic



On Tue, Jul 8, 2014 at 3:29 PM, Tom Miller <tmiller11147 at verizon.net> wrote:

> How does the 3.3 volts get into the Rx chip?
>
> Tom
>
> ----- Original Message ----- From: "paul swed" <paulswedb at gmail.com>
> To: "paul swed" <paulswedb at gmail.com>; "Time-nuts" <time-nuts at febo.com>
> Sent: Tuesday, July 08, 2014 2:50 PM
> Subject: [time-nuts] WWVB updated remodulator schematic 2 mistakes and
> aquestion
>
>
>
>  I have received 2 different emails that what I published seems to have
>> gone
>> out.
>> A 243KB PDF sent through time-nuts.
>> Also sent out dropbox links and indirectly it appears that works.
>> Would appreciate some more feedback please on how you may have obtained
>> the
>> documentation to see what works best.
>>
>> Also found 2 errors on the schematic and those are corrected here.
>> Both are around the 2n3904 transistor.
>> 100K increased to 270K better behavior
>> 47 ohm typo its 1.8K not really picky.
>> Regards
>> Paul
>> WB8TSL
>>
>>
>
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