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DSCN1897
Messy workbench with PSU and breadboard. The circuit is a 1 in, 3 out video amplifier
Date: 24/05/03
Views: 907
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DSCN1901
Circuit on breadboard
Date: 24/05/03
Views: 687
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DSCN1902
Modified ATX PC PSU - un-needed cables desoldered
Date: 24/05/03
Views: 634
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DSCN1906
To prove it works!
Date: 24/05/03
Views: 852
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DSCN1908
The final layout - 6 amp circuits in all (2 circuits per OpAmp IC)
Date: 01/06/03
Views: 826
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DSCN1911
Track side of the board
Date: 01/06/03
Views: 673
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DSCN1915
Nearly finished with PSU and circuit in a rack case
Date: 01/06/03
Views: 753
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DSCN1951
Not very exciting shot but I did add an LED to show the unit is on.
Date: 02/06/03
Views: 608
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DSCN1960
For the rear - look at all those lovely BNC connectors!
Date: 02/06/03
Views: 750
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DSCN1952
I'm so proud of it I wanted another shot!
Date: 02/06/03
Views: 658
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DSCN1956
I also ran +5V and +12V to the rear to power cameras etc.
Date: 02/06/03
Views: 573
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DSCN1926
Finished board with 6 circuits, each splitting a single source to 3 outputs. The pot allows the amplification level to be set.
Date: 01/06/03
Views: 576
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DSCN1939
I actually changed the circuit since taking this picture as I had some problems with interference on the second half of the circuit. Thanks to Keith Doxey, I removed the second set of +12V and -12V rails - all works fine now :)
Date: 01/06/03
Views: 595
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DSCN1932
I started putting heat shrink on the back of the BNC sockets but soon got bored and din't bother with the rest!
Date: 01/06/03
Views: 612
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DSCN1924
PC ATX PSU wired in. The green/black cable is the remote on/off lines. I've just shorted these and not bothered to put in an on/off switch as there didn't seem much point.
Date: 01/06/03
Views: 576
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DSCN1925
A terminal block connects it all up.
Date: 01/06/03
Views: 520
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DSCN1966
A slightly later mod showing The on/off LED.
Date: 02/06/03
Views: 542
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DSCN1965
Another pic!
Date: 02/06/03
Views: 685
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