|
Those circuits use a relatively expensive ($20US), no longer supported voltage regulator, which can be replaced with a 7808 costing $1.20 at Jaycar. This component is in a TO-220 case and is much smaller as well. I guess when people are ordering "free" samples, they don't pay much attention to the cost of the part in question. No wonder they couldn't find anyone selling those parts.
I might look into building some 11-35V to 8V power converters if there is enough interest. People would still need to supply their own BP-511 case or DR-400 on one end. Cost would likely be under $20 each, I'd have to do a more detailed parts breakdown and see what I could get for cases.
I'll do some more research and narrow down the price range. If I could get an idea for how many people were actually looking for a supply, that would help.
Eric
|