Any electronics experts from South Africa?

[benjaminpetrus]

Hi! Are there any electronics experts from South Africa that can teach me about electronics?

[Moderator edit: I've "assisted you" with your English -- KrisBlueNZ]

 

[hvacpw]

Hi....I can Help you please tell me what is the problem related electronics.

 

[benjaminpetrus]

555 timer. No pins conected exept vcc and ground. Pin 3 shows volts. Must pin 3 not be dead

Hi....I can Help you please tell me what is the problem related electronics.

 

[Merlin3189]

Pin 3 output should be low, but there is a transistor beween pin 3 and ground, so there will be a small saturation voltage on it. That will only be about 0.1V unless you pass current into it.
Also you should connect trigger, threshold and reset to Vcc to ensure that the output is low. I think that is the default state, but it is not good to allow inputs to float.

 

[KrisBlueNZ]

benjaminpetrus, This thread is on the same topic as your existing thread at https://www.electronicspoint.com/threads/555-timer.271897 which I have already replied to. Please don't start more than one thread on the same topic. I am closing this thread.