[time-nuts] Quad Driven Mixer 5 to 10 MHz Doubler Article

[xaos]

Luciano,

This looks very nice. However, the inductors are
custom made. It would be nice to have a
off the shelf parts solution so it can be made
easily.

Any ideas ?

-George, N2FGX
On 11/13/2014 08:39 AM, timeok at timeok.it wrote:
> Hi all,
>
> I can suggest a different solution I have tested to have some important improvement. First, the lower phase shift sensitivity with the use of a low pass filter in conjunction with two notch filters instead  the high Q band pass filter, second  the unity gain to avoid a 13/20 dB  amplifier to restore the original power level. You can find in the link all the test we have done.
>
> http://www.timeok.it/files/high_performance_frequency_doublerv13.pdf
>
> I hope this can hep.
>
> Luciano 
> www.timeok.it
>
>
>
>
> On Thu 13/11/14 10:15 AM , Bert Kehren via time-nuts <time-nuts at febo.com> wrote:
>
>> We are using Wenzel with two filters see attached if it will pass. 20 Mhz
>> is down more than 60 db and 5 MHz 55. Distribution Amp takes care of the
>> rest.
>> Bert Kehren
>>
>> In a message dated 11/12/2014 8:13:33 P.M. Eastern Standard Time,
>> dgminala at mediacombb.net writes:
>>
>> Just a few days ago, I ordered parts to build a couple of the Wenzel
>> 2-diode
>> doublers, described in the same article as your full-wave diode doubler,
>> just in time to discover them on Ebay (via slow boat from China), item#
>> 171511157159. I inspected the components and layout in the picture in the
>> listing, and it certainly looks like the Wenzel FWB doubler. At $9.99
>> USD,
>> the price is cheap enough, especially since you get SMA connectors on both
>> ends. Might have to do a bit of solder work on the SMA connectors if you
>> want to put it into a little box.
>> The listing on the doubler on Ebay says that the low end is 10MHz, but
>> I'll
>> bet that it will get down to 5MHz quite easily If there's any trouble
>> handling a 5MHz input, you could easily use a lower frequency ferrite for
>> the balun and make it work.
>> As you suggest, a BPF on the output and maybe a bit of amplification to
>> get
>> the level up to a usable level should get you a fairly clean 10 MHz.
>>
>> Dave M
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts [1]
>> and follow the instructions there.
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts [2]
>> and follow the instructions there.
>>
>>
>>
>> Links:
>> ------
>> [1]
>> http://webmail.timeok.it/parse.php?redirect=https://www.febo.com/cgi-bin/ma
>> ilman/listinfo/time-nuts[2]
>> http://webmail.timeok.it/parse.php?redirect=https://www.febo.com/cgi-bin/ma
>> ilman/listinfo/time-nuts
>>
> Message sent via Atmail Open - http://atmail.org/
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.