Ignore Post # 329; after making some measurements my choice is Stream 15B with PNP, Post # 328. 4017 high output, lightly loaded, is just a few mV lower than VDD. With R of 1.5k, LED current is 2.6 mA / string, or 13 mA for each output. Vf of blue LED measured 2.7 V. Same blue diffused LED's as in video " Stream "; from Electronic Goldmine PN: G21376, 50 for $ 10.00.
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