Rotating Solenoids

[Sravan]

Hey guys, I picked up two rotating solenoids at a surplus store
recently and I haven't the slightest clue on what voltage to use. I
googled the Serial Numbers but these solenoids seem to not be very
common. Should I just try random voltages , do I run the risk of
damaging the solenoid? Also how can i get a power supply that has
variable voltage?

 

[John Fields]

On 30 Dec 2004 02:34:14 -0800, "Sravan" <sravanmx@gmail.com> wrote:

Hey guys, I picked up two rotating solenoids at a surplus store
recently and I haven't the slightest clue on what voltage to use. I
googled the Serial Numbers but these solenoids seem to not be very
common. Should I just try random voltages , do I run the risk of
damaging the solenoid? Also how can i get a power supply that has
variable voltage?

---
Google

http://www.solenoids.com/rotary_solenoids.html

to see whether you can find specs for you solenoids there.

Once you've decided on what range of current and voltage you want for
the power supply you can try ebay or Google for it.

--
John Fields

 

[Larry Brasfield]

"Sravan" <sravanmx@gmail.com> wrote in message news:1104402854.580602.182740@c13g2000cwb.googlegroups.com...

Hey guys, I picked up two rotating solenoids at a surplus store
recently and I haven't the slightest clue on what voltage to use. I
googled the Serial Numbers but these solenoids seem to not be very
common. Should I just try random voltages , do I run the risk of
damaging the solenoid?

I would advise a slowly increasing voltage, starting from 0.
The solenoid should operate at about 2/3 of its normal
driving voltage. It may be rated only for momentary
actuation, so you should used a pushbutton to keep
from apply continuous current. As long as the device
is not getting too hot to hold in your fingers, you are
not likely to be hurting it.

Also how can i get a power supply that has variable voltage?

That is often called a lab supply. You buy or build it.
If you have a variac, a bridge and a thumb-sized electrolytic
capacitor of 24V rating, you could lash up something to
apply a variable near-DC voltage to your solenoids, so
long as you take care not to electrocute yourself or blow
up the cap.

--
--Larry Brasfield
email: donotspam_larry_brasfield@hotmail.com
Above views may belong only to me.

 

[Henry Kolesnik]

I saw the picture and I'm not sure what they're for and I'm guessing instead
of a plunger the shaft rotates? Please explain and their general
applications and why?
tnx

--

73
Hank WD5JFR
"John Fields" <jfields@austininstruments.com> wrote in message
news:bp38t0lr6nskqvmjf3kque93alrrs81guf@4ax.com...

On 30 Dec 2004 02:34:14 -0800, "Sravan" <sravanmx@gmail.com> wrote:

Hey guys, I picked up two rotating solenoids at a surplus store
recently and I haven't the slightest clue on what voltage to use. I
googled the Serial Numbers but these solenoids seem to not be very
common. Should I just try random voltages , do I run the risk of
damaging the solenoid? Also how can i get a power supply that has
variable voltage?

---
Google

http://www.solenoids.com/rotary_solenoids.html

to see whether you can find specs for you solenoids there.

Once you've decided on what range of current and voltage you want for
the power supply you can try ebay or Google for it.

--
John Fields