Search results

Search Forums New Posts
  1. bertus

    Battery ruined by diode and LED

    Hello, What type of battery is used? What is the battery voltage? What kind of charger is used? Are there current limiting resistors for the leds? Bertus
  2. bertus

    Resistor codes

    Hello, This page has a list of possible color codes for E12 and E24 on the bottom of the page: https://www.diyaudioandvideo.com/Electronics/ResistorColorCodes/ Bertus
  3. bertus

    Resistor codes

    Hello, Have a look at this thread I posted: Electronics color code Bertus
  4. bertus

    Capacitor Swap

    Hello, I noticed that there are two diodes (a diode and a red led), but there is not given which is which. Here I found an older version which does have that information: Bertus
  5. bertus

    Voltage Regulator Problem on Moving Head mainboard

    Hello, The closest I could find is the TD7590. Bertus
  6. bertus

    Slide taper potentiometer carbon dead spots

    Hello, When you resize the pictures to about 300 kB, you will be fine to post. bertus
  7. bertus

    Slide taper potentiometer carbon dead spots

    Hello, As you have taken the slide potmeter out, could you post a picture of the slide potmeter? Take pictures from both sides and the pins. That way we can see where the pins are located. Looking for the 10kbm2, I found these...
  8. bertus

    capacitor ESR table - different values from different manufacturers?

    Hello, Here is some info on the ESR value on the capsite: http://www.iequalscdvdt.com/esr.html It also shows the relation between ESR and frequency. Bertus
  9. bertus

    Name them Parts

    Hello, Here is more info on item 4: http://www.datasheetcafe.com/hk4100f-dc5v-shg-datasheet-relay/ Bertus
  10. bertus

    Name them Parts

    Hello, Item 1 is a thumb joystick: https://makerfabs.com/index.php?route=product/product&product_id=76 Item 2 is a 8 X 8 led matrix display, see attached datasheet. Item 3 is an ultra sonic distance sensor, see attached datasheet. Item 4 is likely a relay, as I can not read the data on top...
  11. bertus

    DC voltage blocker - Blocking AC too?

    Hello, You could also have a look at this thread for some books: Book Reviews Bertus
  12. bertus

    A Stretch

    Hello, I have putten large + signs at the electrolitic capacitors: Bertus
  13. bertus

    A Stretch

    Hello, With the 100K potmeter the gain range will be bigger. You can set lower gain with the 100K potmeter. With the 50 K potmeter the gain range will be about 20 to 200 times. With the 100 K potmeter the gain range will be about 10 to 200 times. Bertus
  14. bertus

    9014 Direct Replacement???

    Hello, @Martaine2005 , Check you PM box. Bertus
  15. bertus

    9014 Direct Replacement???

    Hello, This page shows you the comparison between the compound pair (Sziklai pair) and Darlington pair: https://sound-au.com/articles/cmpd-vs-darl.htm Bertus
  16. bertus

    Service Manual needed for Sony STR-DB930

    Hello, To see if capacitors are bad, you can look at them physicaly: https://www.robotroom.com/Faulty-Capacitors-1.html Bertus
  17. bertus

    Replacement micro switch for my mitre saw

    Hello, Have a look at the V series from Omron. http://www.farnell.com/datasheets/1694268.pdf Bertus
  18. bertus

    Replacement micro switch for my mitre saw

    Hello, What are the physical dimentions? Bertus
  19. bertus

    Replacement micro switch for my mitre saw

    Hello, Have a look here, as these look very close: https://nl.farnell.com/w/c/switches-relays/switches/microswitch-snap-action-switches?microswitch-actuator=pin-plunger&contact-configuration=spst-no&contact-current-max=15a&range=inc-in-stock Bertus
  20. bertus

    Hp 2035 monitor Check the Signal Cable

    Hello, Does the monitor have more inputs? It seems to have the following inputs : Composite, DVI-I, S-Video, VGA (D-Sub). Then try an other input and see if that is working. Bertus
Top