Timer not controlling relay open and shut

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simo
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Can you tell me what is wrong with my timer. I want it to make a relay open and shut periodically. For some reason it's not working.
 

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simo said:
Can you tell me what is wrong with my timer. I want it to make a relay open and shut periodically. For some reason it's not working.

You show your output directly shorted to ground. Is that correct, or a typo?
 
berkeman said:
You show your output directly shorted to ground. Is that correct, or a typo?

Nope, that's how I made it.

If I disconnect the output/diode junction from ground, would it sink the current?
 
If you do the calculation from the numbers you give, the sink current would be about 11ma, so the 555 should be able to sink that.