Welcome to my technical web site which is dedicated to RF Communications, Test Equipment and related topics in both old and new technologies. As well as regularly adding new items I have restructured the site to simplify this opening page and move items into subject related groups using the highlighted menus below to provide for future expansion. A number of example PCB layouts have been added to their respective circuit pages.
The site map shows the relative positioning of all pages on this site.
If you have any questions or comments on the contents of this site please email me at G3OOU(at)AOL.COM - replace (at) with @ when emailing.
Bob F Burns G3OOU - Electronic Design Centre
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Unless otherwise stated, all items on these pages are copyright R F Burns 1999-2014.
These web pages were last updated on 22 August 2014.
This web site was built with Serif Webplus X6 and does not use any cookies.
Note: Some of the page layouts and URLs have been changed recently so please enter the site via this home page and check and update your bookmarks - page refreshes may be required.

Aerials & ATU Menu

Mechanics Menu

Surge Limiter

Amplitude Modulators

Mixer Terminations

Switch Wafer Repair/Rebuild

Cleaning Old Components

Painting and Lettering Panels

Temperature Controller

Crystals and Filters Menu

PC Board Menu

Test Equipment Menu

Design Menu

Power Supplies

Typical Receiver Block Designs

Heathkit Information Menu (U)

Permeability Tuned Oscillator

Useful Formulae

Inductors & Tuned Circuits (N)

Progressive Receiver Design(U)


Reforming Electrolytic Capacitors

Useful Tools

LC Filters Menu (U)

Simple RF Detectors

Vackar VFO

Solid State Circuits Menu

Valve Circuits Menu (U)

Measurements Menu

Sources of Information and Parts (U)


R F Burns  
Amateur Radio Callsign G3OOU
G-QRP Club Member 6907
Registered RSGB Instructor
Newsletter Editor - Crystal Palace Radio & Electronics Club
N) = New, (U) = Updated, blank = no recent change
Best wishes