Hobby Electronics Basics

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AES One Tube Transmitter

I'm thinking of buying the Antique Electronic Supply one tube transmitter, but I need to swap the transformer over for...
3 comments posted 18yrs
posted by the1930s
3 comments posted 18yrs posted by the1930s

MPS-U45 Transistors

I'm trying to gather up some parts for repairing a Gottlieb System 80 machine. This machine has a 74LS139 which goes th...
8 comments posted 18yrs
posted by tvisitor
8 comments posted 18yrs posted by tvisitor

help in microelectronic circuits and devices

I have 2 problem from book (Chapter 9 Problem 9.63 and 9.65) ISBN # is 0137013353 the reason i am writting ISBN # b/c i...
1 comments posted 18yrs
posted by jatinp84
1 comments posted 18yrs posted by jatinp84

555 timer help

I am new to this newsgroup, I am typically a poster on rec. pyro or metalworking, but I have been working on a new proj...
4 comments posted 18yrs
posted by quadrunnerkid
4 comments posted 18yrs posted by quadrunnerkid

shorting a dependent current source

Hello, This may sound a really dumb question: consider series circuit of V_1 volts applied across a resistor R=1 Ohms a...
23 comments posted 18yrs
posted by hs.samix
23 comments posted 18yrs posted by hs.samix

impedance between two terminals of a passive network

hi all apparently there is a well-defined impedance between any two terminals in an electrical network that contains on...
4 comments posted 18yrs
posted by sean_mcilroy
4 comments posted 18yrs posted by sean_mcilroy

Mosfet motor driver circuit advice

Hello, An old project that I'd been working on is that of an electric fishing Kontiki. I have a circuit that I think wi...
10 comments posted 18yrs
posted by
10 comments posted 18yrs posted by

looking for someone to reprogram eprom Los Angeles

i need a eprom reprogrammed for my home theater. Years ago someone built an ir to rs-232 device, for me. I need to have...
1 comments posted 18yrs
posted by Pearlslater
1 comments posted 18yrs posted by Pearlslater

Ground in residential system?

I understand the protection that a ground conductor provides a user that may come in contact with the appliance if it b...
7 comments posted 18yrs
posted by bg
7 comments posted 18yrs posted by bg

Darlington Arrays

Hi, Am I right in thinking that the ULN2003A has built in base resistors meaning I can drive a bank (6) of relays with...
9 comments posted 18yrs
posted by mQiQcQhQaQeQlQ
9 comments posted 18yrs posted by mQiQcQhQaQeQlQ

Stereo To Mono Converter Cable

Not sure if this is the right place to ask this sort of question, but here goes. I have a Vectronics AM transmitter I b...
2 comments posted 18yrs
posted by the1930s
2 comments posted 18yrs posted by the1930s

Does the PICKit 2 support ICSP ?

Please can anyone tell me whether it is possible to use a PICKit 2 to connect to the target board via ICSP, and what har...
14 comments posted 18yrs
posted by dai.ode
14 comments posted 18yrs posted by dai.ode

Buck circuit question

Hello, Been working with a buck circuit, today and think I've got in a bit of mix. Sorry for the bad ascii art! cct: Sw...
14 comments posted 18yrs
posted by nebATwalrus81DOTplusDOTcom
14 comments posted 18yrs posted by nebATwalrus81DOTplusDOTcom