Electronics Forum / Components / October 2003

I took two microphones out of an old 1980's tape recorder and I want to
incorporate them into am FM bug type circuit.
Only think is I don't know that type of mic it is.
It's a silver can shape with black felt material covering the top. Is this a

Really hard-tofind those IC's! Can anyone help me to find those.
A tip or exact place to find is valuable.
The count of those IC's is five each.
Gratfully in advance

hi! im just wondering if anyone here knows how to make a counter chip (Code=
MC74F163A, motorola)
count from 1 to 12, rather than 0 to 15, with the use of logic gates.. im
having trouble with it, for some reason when i wire it to the outputs, all i

I have the spindle drive motor out of a Toshiba CD-ROM drive that has
a rotor that's a steel cup with a magnetized ring inside, I would
guess it has multiple poles.  This fits over a laminated stator of 9
arms, each arm having a coil of wire.  There are three pads for the

I am trying to find an lcd and touchscreen for use in a project I am
working on.  I need a mono graphic lcd module with a resolution of
128x64 or maybe 128x128.  I can find plenty of 128x64 displays but
none with a touchscreen or a touchscreen to fit.  Can anyone tell me

I'm looking to purchase a crimp tool for crimp pins associated with
subminature d connector.  It's for my hobby don't want to spend an arm
and a leg.  Can somebody point me in the right direction?
Phil

I need a pinout and/or data on a TA7635p I.C.  Please remove the "NS"
from my email to reply. Thanks.

From a HP calculator (HP48 IIRC), there's a IC labeled:
[logo that looks like Epson?] JAPAN
SED1181F(in big letters) l4 (thats lowercase L then 4, but the 4 looks rather
like an A. And that's in small letters.)

Thank for help

A friend of mine is trying to find a UK source for the MN3007 bucket-brigade
delay chip. He says he's tried Maplin to no avail, and Cricklewood, who
appear to have the chip but no online means of ordering it - "Secure Online
Buying Facility Has Not Yet Been Enabled". I guess my ...

Hello, I hope someone can help me, I have a remote start for my car and
the door unlock circuit is not working, I opened the unit up and found a
10 ohm resistor a little burnt.  The surface mount transistor has a
little burnt bubble on it, I traced the circuit out and found the lock

What would be the best (cheap and good) way to demultiplex analog signals
(mA, V, Ohm)
that means switch from 16 analog inputs to 1 analog output?
Can it be done without mechanical or reed relays, and still be satisfactory?

Where can I find a datasheet of the 2N4870 Unijunction transistor? I checked
Motorola's site, no results!

I am trying to repair a Kenwood A-H5 amplifier.
Q 26 is a : a 113 transistor.
Do anybody have the specs on this transistor.
Best regards. Karsten.