On Sat, 26 Mar 2022, Mike Loewen via vcf-midatlantic wrote:
On Wed, 23 Mar 2022, Jonathan Chapman wrote:
Would you believe dirty phototransistors?
That'd do it! I've had them fail, especially in Siemens 8" drives. I've also had them be too far out of alignment to be reliable. Joys of old machines, right? :P
Both drives are now formatting, reading and writing! The next step is to connect them to my Sol 20 with a Micromation Doubler FDC. The two wood-sided units were made for each other. :-)
And finally, the drives are connected to the Sol with the Micromation Doubler installed, running a 48K CP/M 2.2! http://q7.neurotica.com/Oldtech/S100/Sol20/SolCPM-2.jpg The system will be part of my VCF East exhibit. Mike Loewen mloewen@cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/