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  1. bertus

    Burning PIC16F54s with the TL866

    Hello, There is a lot of different between the c54 and the f84. Read the datasheet. The different between the C and the F series is, the C is OTP/one time programable, until the F stand for FLASH, so you can reprogram it many times you want. Some of the C series has a window on the top, in that...
  2. bertus

    delay on timer

    Hello, The bipolair NE555 will work between 5 and 15 Volts: The CMOS LMC555 will work between 2 and 15 Volts: Bertus
  3. bertus

    RT2 ???

    Hello, That looks still OK. The brown stuff you see is likely some rosin from the solder used. Bertus
  4. bertus

    RT2 ???

    Hello, RT2 looks like a current sensing resistor to me. It looks still OK. Have a look if there are some PCB traces melted. Bertus
  5. bertus

    RT2 ???

    Hello, The size of the images is likely to large. Shrink them to about 300 kB and try to post. Bertus
  6. bertus

    Comedy Thread

    Thanks to cmartinez AAC
  7. bertus

    Changing a remotes button function due to damage

    Hello, Go to a second hand shop and buy a remote that looks like yours. Cut out a key and place it on the spot of the defective on in yours. Bertus
  8. bertus

    Comedy Thread

    Thanks to cmartinez AAC
  9. bertus

    Single Led flasher circuit.

    Hello, No, but you have a country given. Bertus
  10. bertus

    Comedy Thread

    Thanks to SamR AAC
  11. bertus

    Single Led flasher circuit.

    Hello, I think that @Bluejets is trying to point you to this page: http://www.talkingelectronics.com/projects/FlasherCircuits/Page83FlasherCircuitsP1.html Bertus
  12. bertus

    Single Led flasher circuit.

    Hello, There are also blinking leds available: https://za.rs-online.com/web/c/?searchTerm=blinking+led They seem to work from 3.5 to 14 Volts. Bertus
  13. bertus

    COVID-19

    Hello, @davenn ,Then you do have almost the same age. I am 61 now. The vacination strategy is likely different in your country. Bertus
  14. bertus

    COVID-19

    Hello, @davenn , You must be younger. I got both shots, one in April and one in June, both shots are AstraZenica. In Holland they give the shots from old to young. Bertus
  15. bertus

    Radio Daze

    Hello, @SparkyCal , There are more than 100 websdr pages: http://websdr.org/ Bertus
  16. bertus

    Potentiometer

    Hello, @Externet , Is this the item: https://www.aliexpress.com/item/32760020962.html?src=bing&albslr=222322000&isdl=y...
  17. bertus

    Potentiometer

    Hello, You can adjust the range for the circuit with the 100k and 10k resistors on adjusting stack. You could make the circuit and measure the voltage on pin 3 of IC1a. Then you can calculate the needed resistors in stead of the 100k and 10k. Bertus
  18. bertus

    Potentiometer

    Hello, Why do you need a 90 degrees potmeter? The circuit uses a standard 100 k potmeter: Bertus
  19. bertus

    Radio Daze

    Hello, @davenn , I still have an old FDK Multi 2000 2 meter set: https://www.rigpix.com/fdk/fdk_multi2000.htm I am not active, as I do not have the space to put-up an antenna in my apartment. Bertus
  20. bertus

    COVID-19

    A sheep farmer stuck in lockdown in New South Wales who was unable to attend his aunt’s funeral has honoured her memory with the ultimate tribute: a love heart made from sheep. Ben Jackson from Guyra couldn’t make it to Brisbane to be with his aunt during her final moments after a two-year fight...
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