S/300 Optical bias

Status
Not open for further replies.
I have an S/300 Series II but it is not marked as optical bias on the faceplate (in fact there are no markings at all on the faceplate.)

How can I tell by looking under the hood if it's optical bias or not?

Thanks to all.
 

Attachments

  • IMG_1802.jpg
    IMG_1802.jpg
    611.9 KB · Views: 120
Status
Not open for further replies.