[time-nuts] Minicircuits 10% discount in December
kb8tq at n1k.org
Thu Nov 27 19:21:19 EST 2014
> On Nov 27, 2014, at 5:59 PM, Jim Lux <jimlux at earthlink.net> wrote:
> On 11/27/14, 3:10 PM, Gerhard Hoffmann wrote:
>> Am 27.11.2014 um 23:30 schrieb Bob Camp:
>>> 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
>> 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.
> Analog Devices seems to use these for their various application circuits
> Up to 3 GHz is the Mini-Circuits TC1-1-13.
> From 3 GHz to 4 GHz is the Johanson Technology
> From 4.9 GHz to 6 GHz is the Johanson Technology
For pre-wound parts, there are a number of outfits that will sell you sub $1 transformers. How well they work .. who knows.
There are other parts in the same series at similar prices. Don’t want to go for the 2K pc minimum order? Price roughly doubles.
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