Hobby Electronics Basics

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How do you design an op amp circuit?

This question is related to my question about AGC threshold amplifiers. But I feel that it is a topic of its own. In ge...
8 comments posted 19yrs
posted by mr.whatever
8 comments posted 19yrs posted by mr.whatever

Need CCD 100-10a Radiation Survey Meter Information

I'm hoping someone out there will have the manual and or the schematics for a Canadian Admiral ccd 100-10a radiation su...
2 comments posted 19yrs
posted by technician
2 comments posted 19yrs posted by technician

C cross compiler to target PIC16f877A

Hey folks! I am looking for a C cross compiler to target PIC16f877A. I searched for the Keil comiler for pic but it see...
11 comments posted 19yrs
posted by chaudhari.chetan
11 comments posted 19yrs posted by chaudhari.chetan

Powersupply Testing

I have a electronic load powersupply tester and was wondering how you go about setting it up? For a computer powersuppl...
3 comments posted 19yrs
posted by uriahsky
3 comments posted 19yrs posted by uriahsky

Regulator/power supply on/off controll

I need to control supply voltage to the pic being programmed while keeping power to the buffer and control signal on. S...
1 comments posted 19yrs
posted by sambo
1 comments posted 19yrs posted by sambo

simple power meter

I was wondering if someone can recommend a simple in-line power meter that can inform a computer of a power level every...
2 comments posted 19yrs
posted by mike7411
2 comments posted 19yrs posted by mike7411

Strain gage question

Can you get accurate, relative or repeatable readings, from a strain gage with a inexpensive digital volt meter? I woul...
13 comments posted 19yrs
posted by luv2fly99
13 comments posted 19yrs posted by luv2fly99

Negative ion generators

Hi all, I hope you can assist me with some questions about negative ion generators and ozone production. Firstly, I've...
12 comments posted 19yrs
posted by technician
12 comments posted 19yrs posted by technician

why nothing simulates?

Hello friends I am Pierre living now in UK. I tried to use many times ltspice and get joy never. Even going to very bas...
10 comments posted 19yrs
posted by pierre_juno
10 comments posted 19yrs posted by pierre_juno

Peak voltage measurement

I'm looking for a cheap way to test a system I have, The system works by starting at 0V. When it is triggered it will p...
1 comments posted 19yrs
posted by Geoffrey.Eadon
1 comments posted 19yrs posted by Geoffrey.Eadon

Remote control for dust collector

I have a wood shop in my basement and would like to automate the startup/shutdown of my dust collector unit. It is a 22...
44 comments posted 19yrs
posted by HankBrandenburg
44 comments posted 19yrs posted by HankBrandenburg

Questions about Nikola Tesla

Hi all, here's a some questions I always wanted to ask electronics gurus. It's about Nikola Tesla and his inventions. T...
21 comments posted 19yrs
posted by j_joensuu
21 comments posted 19yrs posted by j_joensuu

Alternating Red/Blue LED Flasher Circuit

My son and I are working on a Pinewood Derby (Boy Scout) car, and he wants to put police lights on top. We're trying a...
15 comments posted 19yrs
posted by mySpamB8
15 comments posted 19yrs posted by mySpamB8

signal to noise ratio measurement

I was just wondering if there is an easy way to automatically measure a signal to noise ratio. I'm looking for a means t...
2 comments posted 19yrs
posted by bob
2 comments posted 19yrs posted by bob