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News:
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May 9, 2008:
Alert:
Paypal payment was closed:
We have received some fraud payments from Paypal method, so we decided to close this method until we find an effective way to prevent it. So users can upgrade for Premium by using Moneybookers.
September 29, 2007:
New Circuit:
0-35V,0-3A Regulated Power Supply:
This is a circuit to build an instrument power supply for your electronic bench. The heart of the circuit is an old but powerful regulator chip, LM723.
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