The LM7812 handles a range of input voltages, the 6V doubled will give you enough to rectify and feed the regulator. I thought it was on the low side and went with a 12V transformer, which doubled is still well within the regulator range. Working in my case, thought about converting the doubler to just rectify but seemed like more work for no reason.
The LM7812 handles a range of input voltages, the 6V doubled will give you enough to rectify and feed the regulator. I thought it was on the low side and went with a 12V transformer, which doubled is still well within the regulator range. Working in my case, thought about converting the doubler to just rectify but seemed like more work for no reason.