Welcome to my technical web site which is dedicated to RF Communications, Test Equipment and related topics in both old and new technologies plus a few non-electronic ideas. New items are regularly added and subject related items are grouped within the highlighted fields for ease of access and 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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Notes:

1. Unless otherwise stated, all information on these pages is copyright R F Burns 1999-2019 and may only be used by private individuals for non-commercial applications.

2. These web pages were last updated on 02 August 2019.

3. This web site was built with Serif Web Plus X8 and does not use any cookies.

4. This and the associated admin site undergo continuous development so please enter each site via their respective home pages and check and update your bookmarks - page refreshes (F5) may be required.

5. Some of the processes described in these pages make assumptions about the skills and tools required to carry them out and some of the circuits contain lethal voltages. If in doubt seek experienced help before you start.

Aerials & ATU Menu

Low Cost Design

Software (U)

Amplitude Modulators

Measurements Menu

Solid State Circuits Menu

Cleaning Old Components

Mechanics Menu

Sources of Information and Parts

Control Circuits

Music Electronics

Surge Current Limiter

Crystals and Filters Menu

Painting and Lettering Panels

Switch Wafer Repair/Rebuild

Design Menu

PC Board Menu

Temperature Controller

Electromechanical Circuits

Permeability Tuned Oscillator

Test Equipment Menu

Fault Finding

PIC Applications Menu

Typical Receiver Block Designs

Heathkit Projects / Information

Power Supply Menu

Useful Formulae

Inductors & Tuned Circuits

Progressive Receiver Design

Useful Tools

Keyer

Re-engineered Heathkit Units

Vackar VFO

LC Filters Menu

Reforming Electrolytic Capacitors

Valve Circuits Menu (U)

Bob F Burns  

C Eng  FIET  MSE

Amateur Radio Callsign G3OOU

G-QRP Club Member 6907

Instructor and registered RSGB Assessor

Newsletter Editor - Crystal Palace Radio & Electronics Club

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Best wishes