Rotary Encoders

Smooth, Mechanical, 48-Pulse Rotary Encoders We had to order a large quantity of these nice, smooth (detent-less) rotary encoders in order to get a low price for use in the Micro908. But as a result, we ended up with LOTS extra … and we’re willing to sell these AT COST (plus mailing) to homebrewers. 2-phase… Continue reading Rotary Encoders

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DDS Amp Kit

A Clean, Adjustable RF AMP for DDS Daughtercard Owners or for Standalone Use! The DDS Amp is a “grand-daughtercard” that is used in place of the MMIC amplifiers (MAR, MAV, ERA) provided previously on the DDS Daughtercard. Once you assemble this little kit and install it onto the DDS card, you will be able to… Continue reading DDS Amp Kit

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Tuna Tin 2 Kit

The venerable Tuna Tin 2″ QRP transmitter kit is once again available! After having been revived and modernized by KI6DS and NorCal QRP Club a number of years ago, literally thousands have been sold by NorCal, NJQRP and the Ft. Smith QRP Group. Now, the tradition is being kept alive by W1REX and the Maine… Continue reading Tuna Tin 2 Kit

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NB6M Paddles

The best part about these paddles is that you can make them yourself in just a couple of hours or so, start to finish. They are made from readily available materials, and cost almost nothing to build. All that is required are some scraps of double sided PC board material, a piece of single sided… Continue reading NB6M Paddles

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St. Louis Vertical Updates

The St. Louis Vertical Revisited by Dave Gauding, NF0R Here are a few ideas and observations on the St. Louis Vertical: Radiator Electrical continuity using the Radio Shack 300 ohm in-line connector and the light-duty twinlead leaves something to be desired. The #24 guge stranded wire is serviceable but just doesn’t hold up in repetive… Continue reading St. Louis Vertical Updates

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St. Louis Vertical

The St. Louis Vertical (SLV) offers portable enthusiasts an easy-to-build, easy-to-use antenna which: Covers 10-40M via a balanced line tuner (Lots of Bands for the Bucks) Installs independently of external supports (Trees are not required) Is inexpensive (About $40) Is lightweight (45 oz. for antenna, mount and radials) Is really portable (Car, canoe, backpack, bike,… Continue reading St. Louis Vertical

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How Low Can We Go, With a VXO?

The announcement of a building contest for Pacificon, 2002, set off a chain of experiments in my shack that, so far, has produced a very nice 10 Meter transceiver, using a 20 Meter VXO as its signal source, two entries to the VXO contest that tuned from above the basic crystal frequencies to frequencies well… Continue reading How Low Can We Go, With a VXO?

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