At 10:39 AM 5/18/2008 -0700, Randall wrote:
>Apparently Radio Shack no longer carries anything resembling a variable
>bench power supply. But I do see several fixed "battery eliminator" type
>power supplies that could be used, if you add some means to control and
>measure the current.
Bummer!!! I've had a test bench variable power supply from
Radio Shack for over 20 yrs, maybe longer. It's fantastic, and
wasn't that expensive when I purchased it. I also have a 12VDC
at 6 to 10 amp supply kit that I built back in the 70s to power
my 2 meter radios. Put it in a case, with a switchable meter to
show volts and amps.
I use both of these quite a bit.
I did do a search for variable power supplies, and found some
nice ones. Some aren't very expensive.
http://www.electronickits.com/kit/complete/powe/xp15k.htm
http://www.instructables.com/id/Variable-DC-Power-Supply-for-15/
http://sciencekit.com/product.asp?pn=IG0024435&sid=2008FS&eid=2008FS&mr:refe
rralID=9378c687-255d-11dd-990b-000423bb4e79
http://www.tequipment.net/ElencoXP-15K.html
http://www.circuithut.com/index.php?/circuit/content/view/full/273
http://www.hobbytron.com/product1142.html
http://www.hobbytron.com/Regulated-Power-Supply4.html
http://www.hobbytron.com/UK400.html
http://www.allelectronics.com/cgi-bin/item/PS-613/480/0-30VDC+5VDC+12VDC_LAB
_PWR_SUPPLY_LCD_DISPLAY_.html
John
John T. Blair WA4OHZ email: jblair1948@cox.net
Va. Beach, Va
Phone: (757) 495-8229
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