Hi In the “as wired” configuration, that looks more like a full wave doubler than the full Wenzel tuned multiplier. You may be able to re-wire it for the full circuit.
Bob > On Nov 12, 2014, at 8:20 PM, paul swed <[email protected]> wrote: > > Looked it up and pretty amazing. Can't really say how well the ferrite will > go down to 5. It should. > Paul > WB8TSL > > On Wed, Nov 12, 2014 at 7:22 PM, Dave M <[email protected]> wrote: > >> 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 >> >> Brian, WA1ZMS wrote: >> >>> Gentlemen- >>> >>> I have my paper copy in front of me with the original article. >>> I am not certain that I can just scan it and send it around due to >>> ARRL & Author copyright matters. But I am willing to scan it. >>> >>> With all due respect to John, K6IQL the author who spent much time >>> on his design......I would opine that an equivalent doubler could be >>> made from the Wenzel doubler circuits that are on the Wenzel web >>> page and from first-hand experience...I used such a 5-to-10 MHz >>> doubler >>> for all of my amateur radio projects up through 403GHz. >>> >>> The K6IQL design, in brief, splits the 5MHz signal into two paths. >>> One passes to the LO port of a Double Balanced mixer, while the >>> second path goes through a 90-deg phase shift network and into the >>> RF port of that JMS-1MH mixer. The output is taken from the IF >>> port. The output is then buffered & filtered. He spent much design >>> effort >>> on the 90-deg phase shift network to keep it all temp stable. >>> >>> Personally, I'm lazy and like the Wenzel "full wave rectifier" design >>> with >>> a nice BPF on the output to obtain a clean 10MHz. >>> >>> -Brian, WA1ZMS/4 >>> >>> >>> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
