We are sort of drifting a bit off topic. It's fine by me, actually I think it's great but I hope nobody is going to get upset.
I fitted the heat sink for the 7A diode today. It's right in the airstream from the side fan. I still have not made up my mind whether to run the 4 fans off the main transformer or use the small 12V 20VA transformer I have. Keeping the power supply circuit separate does have it's advantages. The main one being I now how to make it. Once the DC bit is finished I am totally ignorant. As soon as we get back from our little holiday I'll put in an order for some heat sink compound and a few other bits. I can then start burning my fingers on molten LM318's.
I fitted the heat sink for the 7A diode today. It's right in the airstream from the side fan. I still have not made up my mind whether to run the 4 fans off the main transformer or use the small 12V 20VA transformer I have. Keeping the power supply circuit separate does have it's advantages. The main one being I now how to make it. Once the DC bit is finished I am totally ignorant. As soon as we get back from our little holiday I'll put in an order for some heat sink compound and a few other bits. I can then start burning my fingers on molten LM318's.