[time-nuts] 10MHz Square to Sine Wave Conversion

[Bob Darlington]

Here's the URL to the document I was referring to:

http://www.w1ghz.org/small_proj/10MHz_Filter_for_GPS_Reference.zip

And I see in my simulation I have the inductor and cap in the center of the
schematic reversed, however it was built properly.

-Bob

On Thu, Jul 16, 2015 at 3:24 PM, Bob Darlington <rdarlington at gmail.com>
wrote:

> For the life of me I can't find the link to the schematic or any mention
> of it in the archives.  Google fail.   However, I was able to find some
> screen shots and pictures from the Chebyshev filter that I built from the
> docs that I originally found here.  This should get you started if you want
> to roll your own.  Mini-Circuits makes a filter if memory serves, but this
> is a very cheap and fun project if you already have a little project box.
> Screen shots show simulation and most importantly, the values of the parts
> in the project.  The 0.06uH inductor was hand wound and tweaked till I got
> it right.  S parameters were measured with the cover ON and the cover does
> de-tune the circuit so you have to compensate before buttoning it up.
>
> https://goo.gl/photos/UiqRrFRNYczvcbNh6
>
> -Bob N3XKB
>
> On Thu, Jul 16, 2015 at 11:49 AM, skipp Isaham via time-nuts <
> time-nuts at febo.com> wrote:
>
>> re: 10MHz Square to Sine Wave Conversion
>>
>> The GPSDO I recently acquired outputs a 10 MHz square wave. I'd like
>> to convert it to a sine wave and I am looking for suggestions and info re
>> any reasonable pre-made circuits and/or boards. No sense reinventing the
>> wheel if I can avoid it.
>>
>> Otherwise I will start from scratch and make a new wheel....
>>
>> Thank you in advance for your replies.
>>
>> Regards,
>>
>> skipp
>>
>> skipp025 at yahoo dot com
>>
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>