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walterreceiver

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This receiver built by Walter Krämbring uses an Auriel receiver card. Walter is somewhat more brutal regarding the connection to the microphone input than I am - he skips the capacitors alltogether. Apparently the Auriel device can handle the DC level from the microphone.

The Curcuit diagram is like this:

Here is a closeup of the radio device with the hand winded coil in front of it:

Walter has built in an USB sound card together with the receiver, so the resulting device is a USB connected 433MHz receiver. He uses the power from the USB-interface to drive the circuit.

walterreceiver.1285877985.txt.gz · Last modified: 2018/11/03 02:57 (external edit)