Rob's Old Computers
Collecting and Restoring Some Old Computers
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DECstation 220
DECstation 5000 Model 240
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Olivetti M24 (No. 1)
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Primary Side Shutdown Detail High Resolution
By
rjarratt
|
Published
April 9, 2020
|
Full size is
806 × 486
pixels
Primary Side Shutdown
Primary Side Shutdown - Secondary SCR Detail
Primary Side SCR Triggering. Ch1. 555 timer. Ch2. D19 Anode. Ch3. D19 Gate. Ch4. Q1 Source.
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