PhillipGok

Here is all I have
Playstation2_Repairguide.pdf

The Hafler opamp circuit should do what you want.
The New Japan Radio IC datasheet doesn't explain what it does. It has graphs showing bass-frequencies-only, some phase-shift amounts and its block diagram shows a subtraction circuit for both channels but doesn't show what is subtracted.

Here is what I have [attachment deleted by admin]
SONY_PLAY_STATION.PDF
the-ultimate-playstation-manual.pdf

BEL187 npn Transistor

http://www.bel-india.com/BELWebNew/UploadedFiles/Products/Plastic_package.pdf#search='BEL187%20npn'

http://www.electronicsforu.com/efylinux/circuit/feb2003/Automatic%20Heat%20Detector.pdf


NPN Driver/Output Transistor Plastic Package


TYPE
BEL187

Yeah... Me too, me too... I was lucky though, found a service manual for Gould OS300 by googleing it and there it was, at least i got my OS 300 working. But those other 2 1421's are still dim, only power light is on but no trace.

I just wanted to share how I solved a problem with burning the bootloader to some new Atmega328P chips I bought from Digikey. I've been having no problem burning sketches to ATtiny84 chips, but was confused on why I kept getting no response from the 328Ps. Double checked the wiring a dozen times. Finally found this excellent web page, with helpful step by step instructions and useful arduino programs, including a self-contained boot loader . The trouble was the fuses had been set to require an external clock, which I fixed, as instructed, by using a clock signal from pin 9. In case anyone else has this trouble.
 

MP,

Just click on

Item specifics
Place of Origin: Ukraine
Operating Temperature: -55

TOYOTA Car indicator flasher part number  TOYOTA:81980-50030.

Here is the best I could do!

Website
http://www.nmbtech.com/index_f.html

Datasheet
http://www.eminebea.com/content/html/en/motor_list/pm_motor/pdf/pm35s048.pdf

Wiring Info
http://www.sherline.com/8760pg.htm



PM35S-048-HPE8
  Made by NMB
unipolar stepper motor

Another Datasheet
http://www.nmb-gmbh.de/download_files/schrittmotoren.pdf

Stepper motor Information
http://www.clickautomation.com/PDF/categories/Step%20Motor%20Engineer%20(2002%20Catlog).pdf
http://www.cs.uiowa.edu/~jones/step/types.html
http://www.southwest.com.au/~jfuller/steppers.html
http://www.ams2000.com/pdf/step101.pdf
http://www.bbastrodesigns.com/cot/operate_stepper_windings.html
http://eio.com/jasstep.htm

I am a regular PCB designer. Check my designs specimens. If you have such inqyiry in future then e-mail me at [email protected] or call on +923214322695
Sample Designs.zip

yo mike, where are you?