Hobby Electronics Basics

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Bode Plotter

Hi, again thank you for the previous help. I will start building the simple PSU next week. This question is little on t...
3 comments posted 16yrs
posted by klaine8
3 comments posted 16yrs posted by klaine8

A Better Quality AM FM Receiver

Hi Group, The apartment I live in has thick concrete walls, floor, and ceiling. Over the years I've tried several diffe...
10 comments posted 16yrs
posted by klik4me
10 comments posted 16yrs posted by klik4me

[UK] Television detector

I haven't heard much about television detector vans lately but we used to be told that they could detect a television e...
18 comments posted 16yrs
posted by frederick.williams2
18 comments posted 16yrs posted by frederick.williams2

Power Supplies

Hi, I am trying to find schematics for PSUs. I found one, probably good one, but it was very complicated and used an IC...
9 comments posted 16yrs
posted by klaine8
9 comments posted 16yrs posted by klaine8

Galvanic disconnection with transformer

Hi, first. Thank you for all the help I have gotten from here so far. Now I am trying to figure out how to connect the...
17 comments posted 16yrs
posted by klaine8
17 comments posted 16yrs posted by klaine8

Analog neagtive delay generator - please help

Could some analog guru please help ? Digital circuits can use a delay locked loop to generate a negative delay - is the...
13 comments posted 16yrs
posted by dakupoto
13 comments posted 16yrs posted by dakupoto

CF Lightbulb Dimmer

Just start subtracting cycles. Below 25% - 40% power it'll start to flicker. Bret Cahill
17 comments posted 16yrs
posted by BretCahill
17 comments posted 16yrs posted by BretCahill

AC capacitor question

Hi, I believe it is possible but I would just like a confirmation. I would like to know if I can use an AC capacitor an...
14 comments posted 16yrs
posted by lerameur
14 comments posted 16yrs posted by lerameur

12v DC Unipolar to 16v DC Bipolar

Hello, my component level electronics is poor at best so please help me. I need to take 7v to 18v (ish) Bipolar DC, ste...
2 comments posted 16yrs
posted by john.e.perkin
2 comments posted 16yrs posted by john.e.perkin

pulse counter

I want to count TTL pulses from a PMT. (There is already some pulse shaping and discriminator electronics between the P...
21 comments posted 16yrs
posted by ggherold
21 comments posted 16yrs posted by ggherold

Motionless Induction

Hi, let's say there is a magnetic field of a _permanent magnet_, and a fixed/nonmovable induction coil is placed into f...
7 comments posted 16yrs
posted by rm
7 comments posted 16yrs posted by rm

Ping Kari Laine

I made an error on the LC setup; it should look like this: +--------------+ | | | [L] | | +-------+ [FUNCTION GEN] +
1 comments posted 16yrs
posted by jfields
1 comments posted 16yrs posted by jfields

Analog Design books edited by Jim Williams

This post is mostly for Jon Kirwan*, The two books are, "Analog Circuit Design, Art Science and Personalities" and "The...
9 comments posted 16yrs
posted by ggherold
9 comments posted 16yrs posted by ggherold

Simple? logic function using 74HC logic

Hello, I'm struggling to find a simple schematic to implement this two-inputs (A B), one output (X) function, using 74H...
12 comments posted 16yrs
posted by fgrieu
12 comments posted 16yrs posted by fgrieu

labtop charging

I'm considering building a adapter for a HP laptop myself, since a new one is expensive here (in India). It specifies a...
3 comments posted 16yrs
posted by kvsteve
3 comments posted 16yrs posted by kvsteve