Hobby Electronics Basics

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Where to get a better library for SwitcherCAD

I haven't played with this stuff for a while, but I do remember scouring around trying to find more components for Swit...
3 comments posted 19yrs
posted by spam-not
3 comments posted 19yrs posted by spam-not

Chip Mounting

Hi all, I'm looking to get back into circuit design. I haven't messed with anything since my college days - about 15 ye...
16 comments posted 19yrs
posted by tvisitor
16 comments posted 19yrs posted by tvisitor

MG Chemicals Liquid Rosin Flux Question

I'm curious after seeing some no clean rosin flux from MGChemicals. It's just a little bottle with liquid in it. When w...
6 comments posted 19yrs
posted by noen
6 comments posted 19yrs posted by noen

IC Max Temperatures

Hi, If it says on a datasheet max temperature is "300oC for 10 seconds (soldering time)" how long can you leave it at 2...
0 comments posted 19yrs
posted by QmQiQcQhQaQeQlQhQiQmQsQ
0 comments posted 19yrs posted by QmQiQcQhQaQeQlQhQiQmQsQ

How to detonate a pipe bomb with a cell phone?

Hi all: Only for educational purposes I would like to know how to detonate a pipe bomb with a cell phone. Thanks in adv...
12 comments posted 19yrs
posted by arturomagidin
12 comments posted 19yrs posted by arturomagidin

pcb fabrication

I have some projects I'm working on, that I would eventually like to have designed on pcb software, so I can send desig...
19 comments posted 19yrs
posted by mac_vieuxnez
19 comments posted 19yrs posted by mac_vieuxnez

Brushless DC Motor Controller - Reverse Direction

Hi all, Can a brushless DC Motor Controller be used in reverse direction. Can it be supplied with an AC input and to gen...
2 comments posted 19yrs
posted by rajkumarnarisetti
2 comments posted 19yrs posted by rajkumarnarisetti

Stepper Motor Speed Range

I am looking for a stepper motor that has a range of 0.01 RPM to 100 RPM. The max Torque would ramp up to about 128 oz-...
3 comments posted 19yrs
posted by gtslabs
3 comments posted 19yrs posted by gtslabs

R-Core bobbin pics

For those who want to see the makeup of a typical R-Core transformer bobbin I have posted pics on ABSE titled "R-Core bo...
2 comments posted 19yrs
posted by rherber1
2 comments posted 19yrs posted by rherber1

muting class a/b amplifier

Any ideas on the best way to mute/blank the output of a 400 watts RF solid-state amplifier (< 50 mhz) for pulsed (micros...
11 comments posted 19yrs
posted by pat.robertson
11 comments posted 19yrs posted by pat.robertson

Combining dual secondaries of a toroidal transformer

Hi, I have a fairly good sized toroidal transformer that has two pairs of primaries and two pairs of secondaries. The i...
28 comments posted 19yrs
posted by furtherside
28 comments posted 19yrs posted by furtherside

Opto coupler

Hello, I just finish building a small circuit utilizing an opto coupler, the mct6. I use an LM331to translate voltage t...
2 comments posted 19yrs
posted by lerameur
2 comments posted 19yrs posted by lerameur

a question (extreme newbie alert)

hi all this will be my first attempt at formulating a sensible question about this stuff. you've been warned. here's th...
4 comments posted 19yrs
posted by sean_mcilroy
4 comments posted 19yrs posted by sean_mcilroy