RF Constructional Articles
First Published in 1980s

We found these whilst sorting out some old papers. Some of the designs are a bit past their "sell by" dates but we hope that you will find something of interest.
These were previously hosted on rfweb.com.

Surplus RF Components
Test Equipment Sale

Need RF Design Services?
An FM Receiver for the 144MHz (2m) Amateur Band 2m RX
"High Performance" Pre-Amplifiers for 28, 50 & 70MHz Ham Bands pre-amp_showing_tap
Multiband Up-Converter
Receive 26MHz to 75MHz on a 144-148MHz receiver, also could form part of a transmit converter
A 432MHz to 144MHz Amateur Band Receive Converter
also up-converts to around channel 52 for AM ATV
70cm Converter
 More to follow as time allows.....  
Other contributions welcome  

For Communications and Wireless design consultancy, contact Chelmerland Ltd
Comments? please e-mail
© 1982 G. Leighton © 2001 rfweb.com © 2006 radioshop.co.uk