Archive for date: June 6, 2011

Op amps in small-signal audio design

June 6, 2011 | Amateur Radio, electronics | By: Mark VandeWettering

KB6NU drew my attention to this article on using operational amplifiers in audio design. It’s apparently drawn from material in Douglas Self’s book Small Signal Audio Design. As someone whose really just become involved in the ins and outs of analog electronics, I find his pragmatic approach and explanations to be really helpful. Check it […]

G0NQE’s Acorn SDR receiver kit

June 6, 2011 | Amateur Radio | By: Mark VandeWettering

Ever on the lookout for software defined radio designs, I was pleased to see G0NQE’s simple receiver design this morning. He offers a kit, but also offers the bare PCB board, and puts the schematic and parts list on his website. Very cool. It’s pretty much a textbook Tayloe-style switching detector, which is implemented entirely […]