The transformer was an earlier problem I had, i.e. VA and how I know how many I needed, so I used an old transformer I got here which worked in it's original case but was too bulky.
I needed 18V AC for a capacitor discharge unit, and a 5V DC for LEDs display.
The CDU requires 16-24V AC max 2.5A but only while charging it which apparently takes milliseconds
The LEDs require total max 1.5A
Thus the 5A fuse then the 2A fuse.
I've already got a heatsink (twisted vane) and nothing seems to get hot. I've looked at the datasheet and I copied the image but I am assuming the VR image on datasheet is from the lumpside facing. If its the lumpside away then it's back to front.
The capacitor is wired with the positive wire from the fuse to the positive terminal on the capacitor (and the capacitor hasn't exploded)
I'm not sure whether my multimeter is working properly so new one should be here tomorrow.
Re-checked the voltage after the rectifier and it says 25V DC!!! this is from 18V AC in. Is this right????? How does the rectifier make the voltage grow? I thought the voltage should drop after the rectifier by about 1V per diode....
Also re-checked the voltage out and it started at about 4.6V DC and gradually dropped to 1.6V DC. Once it had dropped to under 2V I wired in an LED and it didn't need a resistor! It was sooooo dim
I think I need help...... I'm going mad...... the world is against me......... <G>