hp_9845
Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
hp_9845 [2018/09/11 02:46] cic |
hp_9845 [2018/09/11 03:03] cic |
||
|---|---|---|---|
| Line 8: | Line 8: | ||
| These three machines were received in a group as a donation from the [[https://www.eventideaudio.com/about/history/|Eventide Corporation]] | These three machines were received in a group as a donation from the [[https://www.eventideaudio.com/about/history/|Eventide Corporation]] | ||
| - | and were used by them as scientific calculators, process controllers and laboratory test beds for their products, including a line of memory products and HPIB multiplexors. Parts seem to have been swapped among the machines at different times. When I received them, the 9845C had the proper Option 200 power supply but the 9845T had an Option 100 power supply, underpowered for that configuration, and the 9845B lacked a power supply altogether. The only monitor received with the group was a 98780 enhanced monochrome display for the 9845T. | + | and had been used by them as scientific calculators, process controllers and laboratory test beds for their products, including a line of memory products and HPIB multiplexors. Parts seem to have been swapped among the machines at different times. When I received them, the 9845C had the proper Option 200 power supply but the 9845T had an Option 100 power supply, underpowered for that configuration, and the 9845B lacked a power supply altogether. The only monitor received with the group was a 98780 enhanced monochrome display for the 9845T. |
| As part of the restoration process, the Option 100 power supply has been returned to the 9845B and the Option 200 power supply has been transferred to the 9845T. A standard monochrome monitor has also been obtained so now I'm working on restoring the two monochrome machines and the 9845C project is currently sidelined. | As part of the restoration process, the Option 100 power supply has been returned to the 9845B and the Option 200 power supply has been transferred to the 9845T. A standard monochrome monitor has also been obtained so now I'm working on restoring the two monochrome machines and the 9845C project is currently sidelined. | ||
| Line 23: | Line 23: | ||
| {{9845:docs:09845-90030_9845a_svcmanual_preliminary.pdf|09845-90030_9845A_ServiceManual_preliminary.pdf}}\\ | {{9845:docs:09845-90030_9845a_svcmanual_preliminary.pdf|09845-90030_9845A_ServiceManual_preliminary.pdf}}\\ | ||
| - | [[https://www.eventideaudio.com/about/history/|Eventide Corporation]] | ||
hp_9845.txt · Last modified: 2018/09/11 03:03 by cic
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
