Spring is here.......... Just (well, actually a week ago) got the MusicDirect spring flyer offereing a 10% discount of almost everything they stock. Including all their SACD's which is why I'm mentioning it here. crk seems my original post got lost in cyberspace! thanks neil!!

Hi expertz I've just bought an oscilloscope. While trying to track down why my CH47 was (and still is) oscillating rather than amplifying. I noticed the waveform when the amp was working looked really bad. It showed clipping and those straight triangular waveforms suggesting something was slew...

Hi Expertz I've just finished my Apheared 47 and managed to squeeze it into a Curiously Strong Peppermints tin. The circuit is built on Veroboard and exactly as described in Apheared's Headwize article, except the gain is 2. I also added 100pF in parallel with the gain feedback resistor on each...

Yes that one. But he did not eat it, he just pulled the SR-80's, Hanson amp and 3904 off my desk. The amp and phones are fine but the 3904 will only play the first 19s of track 1. The lens assembly won't move radially out from the center. Any words of wisdom before I dismantle?? TIA crk

Hi all I've been building a couple of pocket amps, one of which already works!! I've had a lot of trouble drilling the holes in the faceplate of the Pac-Tec/SERPAC case. The drill wanders off center and/or grabs the plastic and tears rather than cuts. Any words of wisdom out there? For...