Hello Radio!  

AK2F/WN2A Beacon

On 28.2082 MHz Running ~ 2.8 Watts into a A-99 Vertical From Budd Lake, NJ, USA FN20. On Air Since April 1997.
Same 10 Meter MOSFET Transmitter
Status:  Back on the Air.  New Photos. Any Reports?? See link below.

HBR-3 HomeBrew HF Amateur Band Receiver Revision 12
Straightforward Analog/RF Design-Using available parts.
Stable Franklin VFO + Sallen-Key Audio Filter for CW, with PCB option + New Dial+
A new internal speaker amp to power external speaker= Good Sounding!
Updated: 1 March 2025

Homebrew CW Transmitters-MOuSeFETS
The originals still work, >35 years of use! Download the pdf with all the current revisions.
Now at Version 11... Franklin VFO Stability and More Improvements. Better Documentation. Updated: May 2022.

Charger For 12 volt SLA Batteries
A simple "triple-mode" charger for sealed lead-acid batteries.

Dual-Band Power Amplifier
For 146 and 440 MHz Amateur use. Works in-line with your HT rig. Auto Band-Switching. Uses LDMOS Transistors for good gain, great VSWR tolerance and more. No relays, uses PIN diodes!
Note: Not a beginner's project-- for the RF experienced type.

New: A PIC16F628A BASED FREQUENCY COUNTER
A Sensitive Low-Cost Frequency Counter with 500 MHz capability. Very Inexpensive Parts List.
The Source Code is available under GNU GPL3.

YALP: Yet Another Link Page

Contact Info:  e-mail