[time-nuts] Minicircuits 10% discount in December

Gerhard Hoffmann dk4xp at arcor.de
Thu Nov 27 18:10:38 EST 2014


Am 27.11.2014 um 23:30 schrieb Bob Camp:
> Hi
>
> Finding the RF transformer parts is still a bit of a challenge.

No. These work quite good for me:

CX2074   4:1 CT
CX2147   1:1 CT

< 
http://www.digikey.de/product-search/de/rf-if-and-rfid/balun/3539019?k=cx2074 
 >

The 1:1 is optimum for the NIST doubler at the sources, btw.
The 4:1 as an autotransformer 9:1 at the drains. (2*BF862).
Gives you 13 dBm @ 2f for 13 dBm in at 1f upto 40 MHz in.

Still searching a good balun xformer for 800 MHz in.--> 1600 out.

regards, Gerhard




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