About 2 years ago there was a thread on HRW about connecting a DC variable power supply to an AC Scalextric powerbase. SCC said they knew what was needed, could make me one so I said yes and headed out of town for a business trip. When I got back I had an email from them saying it was done and shipped and they'd send me an invoice. I hate owing anyone money so I PayPal'd the invoice the minute I got it and the device arrived about a day later.
The device works perfectly and the service was above and beyond.
Slothead