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NØXAS, of Ham Gadgets, produced a low-power iambic keyer 10 years ago that became very popular. Known as the Super PicoKeyer, it is a QRP classic, that appears to be no longer in production. Versatility was front-of-mind in its design. Its features go on and on:
Low voltage - from as low as 2.5 to 5.5V • Low current - typical sleep current .005 µA, under 1 mA when keying. • Low parts count - build a keyer with as few as two external components • Simple one-button "menu" interface • Works with any dual lever ("squeeze") keyer, single lever keyer paddle or straight key • Dot and dash memories, automatic timing and element spacing • Setup and message entry using your paddle • Auto straight key detect, both memories available with straight key • Speed adjustable from 5 to 60 WPM via menu OR optional speed potentiometer • Dual-Set Speed allows quick QRS/QRQ and return to favorite speed • Adjustable weight • Variable pitch audio sidetone • Selectable Mode A or B timing • Tune mode • Beacon mode with adjustable 0 – 99 second delay • Two message memories, 60 characters each can be chained together • Memory “pause” allows manual insertion of QSO number, RST etc. into message • Paddle switching - select left or right handed operation • Memory and parameter settings retained with power off • Compact, single 8-pin package ideal for standalone use or integration into transmitter or transceiver
This great keyer, with its low-power requirements, is perfect for portable operation.
Everything you need to know about antennas – from wires to beams to transmission lines to fixed and portable systems and a ton more - can be held in one hand with this soft-cover 22nd edition of the ARRL’s renowned “Antenna Book for Radio Communications”. Except for some scratches, a rough edge and a dog ear on its cover, this book is in like-new condition. Due to its unorthodox page-numbering convention we’d only be guessing at the page count. But in its large format it weighs a bit over four pounds. (Remember: FREE SHIPPING). Its table of contents, shown in accompanying photographs, covers almost three pages. If you’d like to have all of your antenna-reference data consolidated in one place, perhaps this is your answer. Accompanying CD is not included.
Grandad’s Electronics pulled out its poetic license when producing the cover of the manual for its XTAL-1 frequency marker kit. Its shows a Heathkit 100 kHz Crystal Calibrator from its product line of decades ago. In actuality, this kit is a modern design (2008) that is “a very stable crystal calibrator-oscillator kit with harmonic marker signals every 100 kHz from the bottom of HF to well into VHF or higher,” requiring no warm-up time, one reviewer wrote. Click here to read his complete assessment of the Xtal-1. There is one simple modification required of the builder, which is fully explained in its accompanying manual. Parts locations are annotated on its high-quality silk-screened PC board. The builder matches the capacitor marked “C1” on the board to the parts list included in the manual. This kit appears to be no longer in production.
This is the original NorCal 40 CW transceiver kit produced by the Northern California QRP Club in 1993. It is a classic piece of QRP history. Designed by Wayne Burdick, N6KR, a founder of highly-respected Elecraft, it marked a seminal moment in the timeline of club-produced radio kits. It is simple and elegant at the same time. Take a look at its construction and operations manual at http://bit.ly/2hiyrnZ. This document contains all of the relevant specifications for this great kit. In a nutshell, however, it is VFO-controlled, covers 35 to 40 kHz of the 40-meter CW band, has excellent receiver and RF output filtering, runs a solid 500 mW to 2-watts (adjustable) of clean RF output. There is plenty of audio to drive headphones or even a small speaker. The NorCal 40 was wildly popular back in the ’90s. Once you build and operate it, you’ll understand why.
We’d never seen this one before, but “Using Your Meter”, by Alvis J. Evans, is a really nice desk reference as a tutorial on how to get the most out of your digital volt meter (DVM) and Volt-Ohm Meter (VOM) multi-testers. It covers the basics in both theory and practical applications, focusing on voltage, resistance and current. An accompanying photograph shows the breadth of its contents. And, as you’ll see, it describes uses for the radio amateur and DIY’ers who delve into home appliances, lighting, automobiles and tool-control circuits. This copy is in like-new condition and is 176 pages in length. Evans is a former associate professor of electronics at Tarrant College in Fort Worth, Texas.a
“The Hot Water Handbook, HW-8 Recipes” came out in 1985, being compiled and edited by Fred Bonavita, W5QJM (SK). Its 21 pages cover a range of improvements and modifications to this popular multiband QRP CW transceiver from Heathkit. Included are instructions for anti-audio motorboating, installing an Inboard Active Audio Filter, Four Watts for the HW-8, 30 Meters for the HW-8 and lots more. An accompanying image shows its Table of Contents, giving the full picture. The list of writers includes some of the biggest names in QRP in that era. The plastic cover and binding was in such poor shape, we re-packaged this historic manual into fresh plastic sleeves for protecting each page. We have also included a second copy of the manual’s cover if the owner would like to affix it to the cover of the folder. 73RR is very happy to have found this copy and may be obtaining several more.
The Small Wonder Labs FREQ-Mite is a PIC-based Morse read-out frequency counter that was produced by Dave Benson, K1SWL, in the late 1990s. It is an excellent accessory for transceivers with analog tuning. Its maximum counting frequency is 32.76 MHz – covering all of the high-frequency amateur radio bands – 80, 40, 20, 17 and so on. Its accuracy is +/- 1.5 kHz to 25 MHz and +/- 2 kHz at 32 MHz. Send a query asking what your frequency is and it sends Morse audio via an 800 Hz tone. The Morse speed is adjustable from 13 to 26 words-per-minute. The brains of the FREQ-Mite is a PIC 16C621 chip, programmed by Small Wonder Labs. The kit includes all parts and a top-quality printed circuit board. This is a through-hole parts kit. There are no surface-mount components. The package has never been opened and includes a six-page assembly and operations manual. Long out of production, the FREQ-Mite is a rare find, indeed.
This publication of the American Radio Relay League came out in 2011 and is every bit as relevant today as it was six years ago. “Small Antennas for Small Spaces” is a collection of limited-space antenna ideas from well-known amateurs, including the trail-blazing Folded Skeleton Sleeve 40 and 20 Meter Dipole Antenna by QST Technical Editor Joel Hallas, W1ZR. The book is jammed with information including how to get started, antenna configurations, feed lines, SWR, operating modes and RF safety. Also design ideas and projects for VHF and HF antennas you can use inside your home and put together in a weekend, outdoor HF antennas for any property, dipoles, inverted Ls, end-fed wires, loops, verticals, temporary antennas, outdoor antennas for VHF and beyond, compact omnidirectional, directional antennas you can install just about anywhere, and other creative solutions. This copy is in excellent condition – like new.
Off-the-grid guru Mike Bryce, WB8VGE, has put together his most important work in “Emergency Power for Radio Communications.” Its 12-sections cover the gamut of green power, including Solar Power, Charge Controllers and Photovoltaic Systems, Gas, Wind and Water Generators, Battery Systems and Storage, Inverters, Station Instrumentation, Safety, Emergency Practices, as well as Wire Size Tables and Power Connectors. Also, you’ll learn how to build a gasoline-powered DC generator, battery charge controller, low-voltage disconnect, an automatic sealed-lead-acid battery charger, and more. It was published in 2005 and covers the how-to and principles of emergency power operations applicable to this day. The book is like new and in excellent condition – a must have for every radio amateur with emergency operations in mind.