Charles has designed and built from scratch the BEST receiver for monitoring SID events , of ANY such system that I have seen ANYWHERE on the net , including...
Sudden Ionospheric Disturbance . Usually related to a Solar Flare . A receiver tuned to one of the VLF radio stations that is some distance from you , is used...
Thanks. It's a work in progress. Here's the page that I'm currently editing: http://www.techlib.com/area_50/sidseizer.htm . Obviously, it isn't finished. These...
Where is te link to thre receiver? I just picked up an Olympic LS-10 a portable PCM recorder to do field recordings. So far I am very impressed with the total...
Well... OK your forgiven. Just don't let it happen again. Check out that recorder though http://www.olympusamerica.com/cpg_section/product.asp?product=1350 ...
By chance is there some place that sells a set of small drill bits suitable for drilling component holes on a PCB ? Also , a kind of old time , off of the wall...
Hello, I have a drafting suitcase full of these from my manual drafting days. I just looked on ebay and pulled up a few different versions. You may find what...
I found a surplus company in San Diego that has dental drills. The shanks fit my Dremell and the business end were assorted sizes from 0.01 to 0.04 They were...
Here's what I've learned about drilling fiberglass. If you are using an ordinary "high-speed" drill bit, set the drill to a very low speed. The glass is harder...
Electronic goldmine has a lot of PCB drill bits http://www.goldmine-elec-products.com/products.asp?dept=1273 as do many other of the "usual suspects" surplus...
I hadn't thought of that. I was just standing the boards up on edge and using a dremel in a stand to trim the top edge. For some reason the tile saw never...
Thanks Laurie , that is a good idea . Thanks to everyone else too . Charles had suggested the larger diamond bits quite a while back and I purchased those and...
It's a small one, the blade is maybe 4" and cuts a nice fine line. ... From: CharlesW <charles@...> Subject: [techlibdotcom] Re: PCB Drill Bit/ Drawing...
I thought I knew the tricks of heatsinking, good heat conductor, maximize the surface area, make it black for good radiation. A while ago I scrapped a couple...
All I can think of is that they're efficient most of the time, but have moments of inefficiency. Perhaps if someone shorts something or plugs in too heavy a...
I'm trying to build TALKING VOLTMETER from www.techlib.com (http://www.techlib.com/Karen/micro.htm#TalkingVoltmeter). I have downloaded the necessary files...
About 20 years ago, a friend of mine and I, each put together the above device. We have both lost/misplaced the schematic for this relatively simple but...
That's a good point, full power/1200 VA isn't going to come out of two 12v 7.5 Ah batteries for very long LOL Funny how UPS brochures don't usually mention...
I asked Karen and here is her response: I'm not sure what 'flat assembler' is, however, there is a problem with the latest Microchip tools - they've gone to a...
"Flat Assembler 1.68" that's referred to is the lastest stable version of an x86 assembler http://flatassembler.net/ so I think there is a large...
I have gone to electronic shops in my locality and asked for PIC16F876-04/SP to make Talking Voltmeter (http://www.techlib.com/Karen/micro.htm#TalkingVoltmeter...
