In their latest catalog "flyer", MCM Electronics has a
"Multi-Voltage Regulated Power Supply", stock number:
28-2200
they claim is ".... Ideal for any device drawing up to 2A.
Fully regulated to deliver constant DC power. Rotary
selector switch selects 3, 4-1/2, 6, 7-1/2, 9 and 12 V...."
All this for $9.99 (was $16.95)
MCM has a website as well:
<>
and they can be called on the 'phone at 1-800-543-4330
The supply is listed and illustrated on page 18 of their flyer
(source code: HG0601).
The usual disclaimers, of course........
Karl K - W8TIF
McKinney, Texas