Hobby Electronics Basics

  1. Home
  2. Hobby Electronics Basics
9387 Threads Posts
to

Worth reading in Hobby Electronics Basics

Building a remote control mower

We are building a robot mower so we don't have to bear the cold winter. I have a 120V AC mower and a gas powered mower...
8 comments posted 21yrs
posted by simoung
8 comments posted 21yrs posted by simoung

R5106 delay chip

The R5106 is an 8-pin delay chip made by Reticon - does anyone know of a modern day equivalent or a vendor that sells th...
4 comments posted 21yrs
posted by max-man
4 comments posted 21yrs posted by max-man

500 KHz Piezo

Does anyone know where I can buy an inexpensive 500KHz piezo tranducer that has wire leads. I don't want something that...
0 comments posted 21yrs
posted by Robin
0 comments posted 21yrs posted by Robin

Help with a one shot device

Hello all, While I took a few circuits classes in college, they are failing me now that I need them. I want a timing or...
13 comments posted 21yrs
posted by jeffro109
13 comments posted 21yrs posted by jeffro109

Driving a transistor array

Will there be any problem driving one of these transistor arrays http://focus.ti.com/lit/ds/symlink/sn75468.pdf With th...
6 comments posted 21yrs
posted by 1qazse4
6 comments posted 21yrs posted by 1qazse4

signal and capacitor

Hello All I wish to know what will happen for the case of 1)DC and 2)AC input power or signal to the capacitor in a cir...
3 comments posted 21yrs
posted by cheanglong
3 comments posted 21yrs posted by cheanglong

A big thank you to John Popelish

Thank you John for offering to help with so many of my questions. You are a real asset to this group.
1 comments posted 21yrs
posted by royalmp2001
1 comments posted 21yrs posted by royalmp2001

Questions about solar cells

I am considering a solar cell powered project but I have some questions. What happens during low light levels. Does the...
4 comments posted 21yrs
posted by royalmp2001
4 comments posted 21yrs posted by royalmp2001

Sweep Generator possible from 555 Astable circuit?

Can anyone tell me if it is possible to make a square wave sweep generator from a standard 555 astable configuration. W...
21 comments posted 21yrs
posted by royalmp2001
21 comments posted 21yrs posted by royalmp2001

Resistor / Watts calculation in parallel

Im just trying to confirm my understanding of Parallel circuits and Watts calculations when using resistors. This is no...
8 comments posted 21yrs
posted by Cretian
8 comments posted 21yrs posted by Cretian

Solderless breadboard lead length

I'm just getting started. I've used my solderless breadboard a few times now, but for some reason last night I was havi...
1 comments posted 21yrs
posted by noone
1 comments posted 21yrs posted by noone

240 vac Relay cct

Hi I'm putting together a cct which will takes a 240vac input and switches it via 2 relays to two 24v ac outputs. Curre...
4 comments posted 21yrs
posted by mark.mcgee
4 comments posted 21yrs posted by mark.mcgee

about capacitor

Hello All Can anyone enligthen me about how a the capcitor charging and discharging in a configuration of a battery(and...
3 comments posted 21yrs
posted by cheanglong
3 comments posted 21yrs posted by cheanglong

Power Latch Circuit Question

Hi, I'm building a PIC-based MIDI timecode LED display from the web. I'm mounting it in a small enclosure I have, and w...
2 comments posted 21yrs
posted by cauley
2 comments posted 21yrs posted by cauley