EMRFD Message Archive 2692

Message Date From Subject
2692 2009-02-11 18:44:43 Dave - WB6DHW UHFSDR L2 and L3 part change
L2 and L3 on the UHFSDR board are at the input of the high gain/very
small signal audio amps and need to be shielded to prevent hum pickup.
I found a coil in the same size (sm1812) that is shielded. It is about
3 times the price (1.76 vs 0.48 each). The new part number from DigiKey
is DN7939CT-ND.
I will upload the BOM, schematic and board layouts for the
pre-production run later tonight for comments.

Dave - WB6DHW