I gotta ask.... does the 16f873 program the same way the 16f84 does? By the way, my buddy in florida and I had the perfect idea for programming a f84 in circuit... you know those test clips for DIP IC's? the wide alligator nylon clips? I have one of those... and instead of using a ZIF socketed programmer, we'll just snap the test clip on. Wes - kd4rdb@qsl.net http://www.qsl.net/kd4rdb Where am I? http://www.aprs.net:8000/kd4rdb-9 http://www.aprs.net:8000/kd4rdb-10 Stupidity should be painful -----Original Message----- From: William K. Borsum To: PICLIST@MITVMA.MIT.EDU Date: Monday, September 27, 1999 10:53 PM Subject: Re: PIC project with lots of vibration - Best Sockets? >At 01:20 PM 9/27/99 -0700, you wrote: >>Have a shaking application, where the PIC chip will be mounted on a >>piece of machinery that's vibrating. A lot. And am talking to someone >>making a rocket telemetry unit in future using a PIC chip. >biiig snip > >Got three Pics plus sRAM and ADC and signal conditioning with four >accelerometers, three strain gages, and a rate sensor in two cubic inches, >three pcb's in cord wood packaging, surviving 500 G impacts. NOT socketed! > All SMT and firmly soldered in place. > >Trick is to dip first into GE-RTV silicone rubber (real watery, clear, self >releasing two part stuff) to provide an easily removable conformal coating. >Let it cure, then pot with a urethane or epoxy filled with micro-balloons >(syntactic foam filler) for strength and light weight. > >Whole package is pretty much indestructible--and can still be taken apart >for repair or failure analysis. > >kelly > > >William K. Borsum, P.E. -- OEM Dataloggers and Instrumentation Systems > & San Diego, California, USA > ________________________________________________________ NetZero - We believe in a FREE Internet. Shouldn't you? Get your FREE Internet Access and Email at http://www.netzero.net/download/index.html