Constant agitation for the first minute and then three additional inversions ...
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Kodak T-Max 100 in Kodak D-23 self made 1+3
16 minutes at 20°C/68.0°F
Kodak Tri-X 400 in Kodak HC-110 1:160
1 hour, 18 minutes (Stand developed) at 18°C/64.4°F
Kodak T-Max 400 in Kodak HC-110 1:150
42 minutes, 30 seconds (Stand developed) at 21°C/69.8°F
Kodak Double-X 200 at 1600 in Kodak HC-110 B
20 minutes at 20°C/68.0°F