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Old 19th March 2014, 01:01 PM   #1
HeliMan is offline HeliMan  United Kingdom
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Default Elektor General Coverage 1999

Hi,

In addition to my post in the Analogue Line Level section, I thought that some readers might like to see another project I'm working on...

This is a general coverage receiver from Elektor (Jan/Feb 1999 issues). It's been hard to get some of the specialist parts in blue but I strive for perfection. Here are some photos:

Dave.
Attached Images
File Type: jpg 001 Blank PCB.JPG (617.9 KB, 84 views)
File Type: jpg 002 Resistors and a few Caps.JPG (661.4 KB, 82 views)
File Type: jpg 003 A nice little bunch!.JPG (533.5 KB, 80 views)
File Type: jpg 005 A view across the Resistors.JPG (729.2 KB, 80 views)
File Type: jpg 006 Resistors and Capacitors.JPG (660.2 KB, 76 views)
File Type: jpg 014 We're different - we're green! Ha ha!.JPG (648.8 KB, 16 views)
File Type: jpg 019 Coils, crystals and filters.JPG (623.6 KB, 16 views)
File Type: jpg 023 RF Transistors fitted.JPG (589.9 KB, 13 views)
File Type: jpg 036 Blue coil fitted!.JPG (748.7 KB, 19 views)
File Type: jpg P1010385.JPG (564.8 KB, 24 views)
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Old 19th March 2014, 01:07 PM   #2
HeliMan is offline HeliMan  United Kingdom
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Default More photos...

Here's the control PCB...

All the blue enamelled wire is silver over copper. I know that the meter is upside-down, but I don't have the correct one yet - this one is just a space model

The original code for the PIC micro was never made public and there are no pre-programmed PICs left, so I am writing the code from scratch. I have updated the PIC micro to a newer spec and the display to 2 lines instead of the 1 line the original had.

When I get it working, I'll let you all know.

Dave.
Attached Images
File Type: jpg 039 Front PCB.JPG (621.9 KB, 17 views)
File Type: jpg 041 Shiny blue wires.JPG (730.2 KB, 12 views)
File Type: jpg P1010387.JPG (675.7 KB, 16 views)
File Type: jpg P1010390.JPG (553.9 KB, 24 views)
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Old 19th March 2014, 01:09 PM   #3
HeliMan is offline HeliMan  United Kingdom
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Default Work in progress...

Here's the control circuit in progress...
Attached Images
File Type: jpg IMG_0673.jpg (348.5 KB, 34 views)
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