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Does anyone in the group have experience with this product: https://www.sv1afn.com/j310preamp.html It looks to be very well constructed and suitable for a loop preamp. Steve / VE7SL

Ian, Did you by any chance have a Wellbrook 330S or 1530S in the past collection of antennas you could compare the RF Systems to? Thanks, John

In loopantennas@..., <christrask@...> wrote: I'm thinking about building the low-input-impedance amplifier on the second page, using 2N3904 transistors and running off of 1.2 volts.

I had a DX-One (MK2) for about two years. It worked very well but my HOA made me take in down and I ended up selling it. 1) It is ABSOLUTELY an omni-direction vertical. 2) It was the best vertical

Active AM Antenna With Twin Coil Ferrite by C. Crane Co. http://www.ccrane.com/antennas/am-antennas/ JLKolb?s antenna links including the KRS AA-1 Active Antenna schematic, antenna preamplfiers,

If you have a link relevant to the group, please post it in the Links section. If you just put it in a message, it will get lost in the shuffle after a few days. The coverage of the list is pretty

Hi Fraser just once more browsing thru DX-one threads...: apparently you are in possession of Xrays! Could you please forward copies to my email address ulrich.ruch@...

Yes. If I was doing one in brass, I'd be silver-plating all the components before final assembly, then using silver solder. That would give you a nice high-q capacitor.

I built the L-C meter kit from : electronics-diy.com . Very accurate for most purposes. Cost about..... $70.00 John KC9ZYT Sent: Saturday, December 28, 2013 2:15 PM To:

I use both the SmartTweezers ($350, but really slick) and the AADE Model iIB ($99 kit). The AADE will measure L and C very stably and I carry it to hamfest tailgates. Get the 3/4 inch binding post

---In loopantennas@{{emailDomain}}, <brian@...> wrote: ~Anyone looked at making butterfly capacitor kits from copper. The weld that MFJ used to attach their butterfly capacitor to their aluminum

~Anyone looked at making butterfly capacitor kits from copper. The weld that MFJ used to attach their butterfly capacitor to their aluminum loop is a great concept but we all know that copper is

I now have a Honeytek A6013L digital C meter, range: 0.1 pF to 20000 microFd bought new on ebay. I like it, but I cannot really comment on its accuracy. So far, for me having capacitances read from

Good question. I have quite a few DMMs with built-in capacitance measurement, including several Flukes at work. The lowest scale on all of the ones I've used only go down to the nF scale, down to one

Anyone looked at making butterfly capacitor kits from copper. The weld that MFJ used to attach their butterfly capacitor to their aluminum loop is a great concept but we all know that copper is better

I know that there are several Fluke and other top quality multimeter out there that measure capacitance but is there a decent brand/model that has a good range for measuring capacitance loop building

I have two of the AAA-1B active antenna amplifiers that I got from LZ1AQ These have both been only slightly used and come with all the extra parts. They both work and look as new. The price new was

I live in a condo and wanted to purchase the MFJ 1788 loop and place it under a plastic cover such as a BBQ cover. This way the antenna to the condo cops looks like a BBQ. My question is has anyone

3" OD ROTOR + 2 STATOR PLATES $ 5.00 4" OD ROTOR + 2 STATOR PLATES $ 6.50 5" OD ROTOR + 2 STATOR PLATES $ 7.75 6" OD ROTOR + 2 STATOR PLATES $ 8.75 8" OD ROTOR + 2 STATOR PLATES $ 10.50

Hi, I am building up the KD9SV preamplifier using the circuit board and having loads of trouble with oscillation is the gain pot is turned much past about 30 percent.? I'm testing it on the bench and