Hobby Electronics Basics

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Power Supply Ripple Measurement

Hi, 1. I am trying to measure the output voltage ripple of a 5 Volt , 1A power supply. The input to the power supply is...
11 comments posted 10yrs
posted by walravenmelissa
11 comments posted 10yrs posted by walravenmelissa

AN: TL598 Spice Model

Awhile back someone on the LTspice List requested a TL598 Spice model. While somewhat obsolete, it intrigued me, and pr...
0 comments posted 10yrs
posted by To-Email-Use-The-Envelope-Icon
0 comments posted 10yrs posted by To-Email-Use-The-Envelope-Icon

Loud Popping Sound from Class D Amp Soundbar

I have a 2 yo. soundbar that started making annoying popping and buzzing so und (like AC hum but with more harmonics)....
2 comments posted 10yrs
posted by gangh58
2 comments posted 10yrs posted by gangh58

oscillator with constant amplitude

I don't want anybody to design it for me, but in general how would you make an oscillator with a sine output of constan...
18 comments posted 10yrs
posted by fizzbintuesday
18 comments posted 10yrs posted by fizzbintuesday

Transparent RF Repeater

Hello, I'm trying to build a transparent RF repeater (simplex) as a relay for two radios. The receive and transmit freq...
11 comments posted 10yrs
posted by hajekg
11 comments posted 10yrs posted by hajekg

Time to Upgrade ?:-}

I think it's time I upgraded my 'Spice' machine... my present machine is as follows... no laughter please... I've succe...
72 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
72 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

Socket Question

Is there such a thing as a conventional light-bulb socket mountable to a PCB? ...Jim Thompson -- | James E.Thompson | m...
6 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
6 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

OT: Opinions about this situation?

OT: Opinions about this situation?... An alternate question... at what frequencies are these "devices" controlled ?>:-}...
28 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
28 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

Dummy AA Batteries

Got this camera I finally figured out how to operate. Problem is it eats batteries. An alkalines you do not get that mu...
9 comments posted 11yrs
posted by jurb6006
9 comments posted 11yrs posted by jurb6006

OT: Scanner

My 20-something year-old hp Scanjet 3970 died... or at least the wallwart outputs no juice, so it's a toss... scanner d...
23 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
23 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

OT: JV Team

TENNESSEE TERROR: Gunman who killed 4 Marines in Chattanooga ID'd as Muhammad Youssef Abdulazeez THE GUNMAN who opened...
9 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
9 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon

Weight of stuff

Ok guys, I think he as moved on. You can now resume your NORMAL activities.
1 comments posted 11yrs
posted by someone
1 comments posted 11yrs posted by someone

OT: GoToMeeting Invite

I just received a GoToMeeting Invite in the form of some Micro$hit garbled attachment. Though it's text I can't deciphe...
7 comments posted 11yrs
posted by To-Email-Use-The-Envelope-Icon
7 comments posted 11yrs posted by To-Email-Use-The-Envelope-Icon