Hobby Electronics Basics

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HCT/TTL output current and supply current

I am trying to compare some standard series and LS parts to HCT parts. I don't understand how the maximum ratings are c...
4 comments posted 19yrs
posted by grant
4 comments posted 19yrs posted by grant

anyone in the atlanta area?

hi all, i'm wondering if anyone on this list is in the atlanta area and willing to meet up to help further my electroni...
1 comments posted 19yrs
posted by isaacdover
1 comments posted 19yrs posted by isaacdover

Coffee Maker

I have a coffee maker that does not work there is a Thermal Resistor or Thermal Fuse that is open going to the element....
9 comments posted 19yrs
posted by rickj
9 comments posted 19yrs posted by rickj

voltage regulator accuracy

hi all, i'm teaching myself via books and online material just for the fun of electronics... i have built from spare pa...
26 comments posted 19yrs
posted by isaacdover
26 comments posted 19yrs posted by isaacdover

sounds

hi i just want to know that why wood is used to make the speakers ?why not plastic?
5 comments posted 19yrs
posted by rajkathiar4
5 comments posted 19yrs posted by rajkathiar4

Specifying a relay

Hi, I'm looking for a couple (excuse the pun) of relays to control a lighting circuit and a heater. The lighting circuit...
1 comments posted 19yrs
posted by allanlewis99
1 comments posted 19yrs posted by allanlewis99

PV panels

I've got a small (20W) solar panel on my roof. I used it to charge batteries that ran a night light while I was away re...
2 comments posted 19yrs
posted by spamfree
2 comments posted 19yrs posted by spamfree

Sunrise Lamp circuit

Hi, I'm a total beginner in electronic and I'd need an advice on modifying a circuit that I found on the web. The circu...
2 comments posted 19yrs
posted by Cammeleon
2 comments posted 19yrs posted by Cammeleon

HIgh Current Mosfet Toggle noise issues?

Hello, I built a circuit from this link: http://ourworld.compuserve.com/homepages/bill_bowden/page9.htm entitled "High...
16 comments posted 19yrs
posted by stan.portis
16 comments posted 19yrs posted by stan.portis

Atmel AT89C51ED2 in 40 pin DIP package

I volunteer with a hobby group on weekends teaching kidfs simple TTL concepts as well as a little programming ... to tr...
4 comments posted 19yrs
posted by dave002
4 comments posted 19yrs posted by dave002

amperage rating for 30 awg kynar

i google'd this and found 3 Amps ? is that correct ? did i mis-understand ? That just seems high considering the size o...
5 comments posted 19yrs
posted by some
5 comments posted 19yrs posted by some

ultrasonic drill

hello to all group members, please tell me were i can get a small ultrasonic driller for drill holes in hard granite st...
3 comments posted 19yrs
posted by vinay100000
3 comments posted 19yrs posted by vinay100000