[time-nuts] 10 MHz Filters

Dave M dgminala at mediacombb.net
Thu Nov 27 10:50:52 EST 2014

Electronic Goldmine has some Pulse Engineering LAN transformers (same as 
those used on many LAN boards) on clearance at $1.00 each. 
Datasheet is at http://www.datasheet4u.com/download_new.php?id=541958

Quite cheap, in my opinion.

Dave M

Perry Sandeen via time-nuts wrote:
> List,
> I have seen on the net a 10 MHz filter using 10.7 IFtransformers but
> have no idea how well they would work for isolation with thenew style
> Lucent boxes.
> Thoughts?
> On Ebay venders are offering 10 MHz crystals for almostnothing if you
> buy 30. My question wouldthese be good for making some type of simple
> ladder filter?
> In his article *Modifying Lucent RFG-M-RB Rubidium FrequencyStandard*
> the author used a 10MHz filter that was taken from an old
> 10MbitEthernet LAN board. The part number he used was 20F001N and I
> found them onEbay for low prices.
> Now I don’t have any access to any old ethernet LAN boardsso I’d have
> to build from scratch.
> Does anyone of these methods have an advantage over theothers on the
> new style Lucent boxes or in the making of a small
> distributionamplifier with good isolation?
> Regards,
> Perrier

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