22 N5X Construction guide
Testing the power supply
With the entire power supply now built, we can test it before continuing. The idea is that testing this part
of the circuit now means that we'll have less head-scratching if we need to x a problem later. First,
print this voltage chart so that you can record all of the important gures for later reference (or
troubleshooting).
Then properly clear your workbench of any compontent lead ocuts, loose wires, wire 'whiskers', etc.
Double check - even the smallest could create a short circuit. Then tuck the output transformer's loose
wires well out of the way, so they cannot op around anywhere near the power supply. Get your DMM
ready and set to read high AC voltages.
Connect an IEC mains lead to the amplier and the wall socket. If the wall socket has a switch,
switch it on. Use the DMM to carefully conrm that you have your mains voltage at the Live and Neutral
lugs of the IEC socket. Record this gure in the rst column in the voltage chart.
Now turn the amplier on. The neon should glow.
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