Author Archives: shoeless

Crystal Tester Circuit

Small circuits are interesting and don’t take long to build. In order to experience a new construction technique with what they call manhattan construction. I built a crystal Tester. It is a simple two transistor circuit that has a socket … Continue reading

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DX-88 Second Repair

This season the DX-88 antenna broke at the base again, this time the post at the insulating bell broke off. I guess it was time I gave the antenna another good overhaul.  In this image, the cylinder that contains the … Continue reading

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Yaesu FT-7 Operating QRP

Over the holiday season I was offered the opportunity to buy a Yaesu FT-7 radio and I accepted. For the last number of months I have been experiencing the advantages and disadvantages of QRP operations and this is THE rig … Continue reading

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Wall Adapter Power Line Hum Filter

For those of us struggling with 60Hz hum from wall adapters, here is a nice device that flattens out that hum to near Zero. Construction Project Here This project worked right away and needed only some minor adjustment to voltages. … Continue reading

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Aviation Headset Interface for Amateur Radios

Aviation Headset Interface for Amateur Radios V2.0 I had completed version number two some time ago with the help of a nice aluminum chassis, a Hammond 1590B case that is popular with the Guitar Pedal and the Box Mod enthusiasts. … Continue reading

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DIY MOSFET Headphone Amplifier

DIY  MOSFET Headphone Amplifier This project works really well and is based on two MOSFET per channel. A MPF102 in each input and a IRF510 in each output.   The chassis is the main heatsink for the power MOSFET’s   … Continue reading

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YouKits TJ4A 4 Band HF portable

I have had the opportunity to work on a TJ4A 4 Band HF Transceiver from a local ham. These are kits from a maker called Youkits and I am impressed with some details and not impressed with others. The problems … Continue reading

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Trotsky Overdrive Guitar Pedal Project

I completed my first Guitar Pedal based on a popular circuit called the Trotsky Drive. It is a single transistor Overdrive circuit to boost the output of the guitar signal into the clipping region for some distortion. The circuit initially … Continue reading

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Yaesu FT-101B Clarifier and TX/RX frequency alignment

W3JXQ’s web page – Yaesu FT-101 info. If you have been working on the Classic Yaesu FT-101 for any length of time, then you may have been confronted with the problem of the receive and transmit frequencies not being the … Continue reading

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SMD/DIP Transistor Tester Diode Triode Capacitance ESR Meter MOS PNP NPN R/C/L

  http://www.ebay.com/itm/181294840704?_trksid=p2059210.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT Current projects at the moment are focused around building Guitar Effects Pedals. In the works is an example of a effects called Trotsky Drive that uses one single transistor for  a overdrive.  To test components for this project … Continue reading

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