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* A 10 ohm resistor can be used instead of the Ferrite bead. If you don't care about power-rail noise, just use a link instead.
* The later version of this PCB includes an uncommitted LED driver. Just install the parts as indicated on the PCB if you wish to use it to monitor the output level. LA = LED anode. LC = LED cathode. LD = LED Drive. This needs to be connected to the signal source you wish to monitor, e.g. the module output.
== CC-BY-NC ==
Readers are permitted to construct these circuits for their own personal use only. Ken Stone retains all rights to his work.
== See also ==
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