Hobby Electronics Basics

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Marantz CD5000 tray stuck

The cabinet door was closed when the tray was out. This must have knocked it off track or something, as it will not clo...
2 comments posted 20yrs
posted by jag_man653N0_SP_MM_ERS
2 comments posted 20yrs posted by jag_man653N0_SP_MM_ERS

Simple Two IC ICD2 Emulator

I've put up a schematic Inchworm; on my site of my take on the many fine designs of Microchip ICD2 emulators on the web...
1 comments posted 20yrs
posted by wrichardson
1 comments posted 20yrs posted by wrichardson

Transformer primary

Another transformer question: What prevents current overload on a primary side of a transformer when there is no curren...
5 comments posted 20yrs
posted by jamie
5 comments posted 20yrs posted by jamie

Homebrew Transformer

Hello! I'd like to try building a step-down power transformer from scratch. Can anyone recommend any how-to sites? Goog...
51 comments posted 20yrs
posted by jamie
51 comments posted 20yrs posted by jamie

Basic current question

A very basic question on current in a circuit, I thought I understood it but a recent attempt to get the numbers made m...
25 comments posted 20yrs
posted by a?n?g?e?l
25 comments posted 20yrs posted by a?n?g?e?l

Antenna cable voltage

How much voltage is used on a TV antenna cable?
5 comments posted 20yrs
posted by bil783
5 comments posted 20yrs posted by bil783

motor calcs!!!

Hi, I wonder if anyone might know the formula to derive the Rotor speed of a synchronous motor - having only the: Perce...
6 comments posted 20yrs
posted by pbOUT001y2057
6 comments posted 20yrs posted by pbOUT001y2057

Which enclosure do I need for this controller?

Hi, I'm a woodworker mainly and don't know half enough about electronics. I'd appreciate some advice on which box to pu...
5 comments posted 20yrs
posted by b_haines
5 comments posted 20yrs posted by b_haines

PCB DESIGN

How to design circuit board of any circuit? How to print on the board at home? Easy method..........
4 comments posted 20yrs
posted by Girish.Patel2000
4 comments posted 20yrs posted by Girish.Patel2000

Battery life discharge rate

Hello Everyone, I made a semi-passive filter circuit that uses one 1.5 volt AA cell with a constant drain of one milli-...
2 comments posted 20yrs
posted by christopher
2 comments posted 20yrs posted by christopher

Cascading Active Filters

Hi all, i have 2 active filters with a gain of 21 each..cascaded to give me an overall gain of 441. input into the into...
2 comments posted 20yrs
posted by akarsh000
2 comments posted 20yrs posted by akarsh000

Asking for help: Space-Time Codes simulation

hi dear members, i am a student just beginning to do some work on MIMO system. i wonder if someone can share me some MA...
0 comments posted 20yrs
posted by ddznq
0 comments posted 20yrs posted by ddznq

Astro-Jet Pulse Amplifier Scam?

At a swap meet today, I saw a vendor selling a device called the "Astro-Jet Pulse Amplifier" that connects in series wi...
7 comments posted 20yrs
posted by wrongaddress
7 comments posted 20yrs posted by wrongaddress