HxC seems to export converted images to 300 RPM .SCP files only, such as in the case of converting .D64 to .SCP. There's no choice to master a 360 RPM image.
Therefore, these can't be written by a JU-475-4 with Supercard Pro because the drive stays at 360 RPM even when low-density mode is selected in SCP software. This only produces unusable tracks.
Of course, maintaining a 360k 48tpi drive is a solution; but potentially alleviating the issue, I found this mod to add a simple hardware override switch to force the JU-475 motor to 300 RPM:
http://dunfield.classiccmp.org/img47321/speed300.htm
However, is there a jumper on these drives I'm not aware of that selects the speed or allows speed select when low density is selected? I'm checking if I'm missing something obvious before I try this this 300 RPM hardware speed modification.
Thank you - Rob
Therefore, these can't be written by a JU-475-4 with Supercard Pro because the drive stays at 360 RPM even when low-density mode is selected in SCP software. This only produces unusable tracks.
Of course, maintaining a 360k 48tpi drive is a solution; but potentially alleviating the issue, I found this mod to add a simple hardware override switch to force the JU-475 motor to 300 RPM:
http://dunfield.classiccmp.org/img47321/speed300.htm
However, is there a jumper on these drives I'm not aware of that selects the speed or allows speed select when low density is selected? I'm checking if I'm missing something obvious before I try this this 300 RPM hardware speed modification.
Thank you - Rob