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@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@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.