jnighlight:
Considering this is a first time, mostly "just because" project, a couple hours should be fine for me, and it's nice and simple because I have the holders, and I know it'll work perfectly. I don't expect this thing to be on more than about 10 minutes at a time.
How would I go about finding a 9-volt power supply that plugs into a wall? Are they called something particular?
Also, why a pair in series and four pairs in parallel? I would only want 8 actually, but why that configuration, instead the 8 in series as suggested earlier?
From Radio Shack, you can get:
- Enercell 9VC/800maH adapter -- RadioShack.com Official Site - America's Technology Store
- Enercell Adaptaplug M (2.1mm) -- RadioShack.com Official Site - America's Technology Store
Though rather than getting just a 9v adapter, you might want to think about a universal adapter that can give you 1.5 - 12v volts with different plug outputs. This was the first one that popped up on ebay when I looked for 6v 9v ac adapter with buy it now:
http://www.ebay.com/itm/UNIVERSAL-AC-DC-ADAPTER-1-5V-3V-4-5V-6V-9V-12V-500mA-6P-/330602218135?pt=Travel_Adapters_Converters&hash=item4cf96d8297