Galvo control signal

[CJ9]

Hello!

I have a quick and easy question about controlling galvo scanners.

I was looking at these cheap ones from Ebay (no commission, promise I can delete the link after!):
http://www.ebay.co.uk/itm/20Kpps-las...item2c5930e6ef

Reason why, is because let's be honest - I may blow them up so might as well get cheap ones for first testing!

The spec, like more expensive ones state the following:
Signal Input voltage：±5V
Input voltage requirements: +15V/1.0A，-15V/0.6A
Power supply: +/-15V@100mA

I have no problem supplying the correct bits with these power requirements, but I just want to ask; what control signal do I need to give to just use 1 axis? Does the ±5V will control the position of the mirror?

Thanks!

[Shawnb]

i just ordered and recieved a 30k set from http://www.eightonlight.cn/en/index.asp they are "PT" scanners (im told they are the manufactuers and my paypal payment was made to the "PT" phoenix tec branch of the company they seem like nice scanners so far ill be hooking them up today. they came with a good looking 1a PSU extra mirrors and all cabels needed. and with shipping i didnt pay much more than that ebay listing

[CJ9]

I have heard of that company but wasn't sure, thanks! I'll contact them now and see what price I can get. Let me know how well they work! Am I right that they need a -5 to +5 voltage control signal? to position them?