Can anyone explain what the difference between these Lionel parts might be, specifically:
680-1181-200: SMOKE UNIT / DSMK / DUAL SMOKE W/ ELBOW:
193-1210-200: SMOKE UNIT / DSMK / DUAL SMOKE
610-1450-200: SMOKE UNIT W/ 691DSMKC01 / DUAL SMOKE / LEGACY:
610-1450-200 uses this PWB:
680-2695-200 uses this PWB:
680-2695-200/691-DSMK-D00 is used in 6-84685 Legacy Polar Express.
It also looks like 680-1181-200 also uses the D00 board.
610-1450-200/691-DSMK-C01 is used in 6-11451 10th Anniversary Polar Express.
D00 uses the thermistor. C01 looks like it does not. Pinouts for D00 are not listed.
Are they the same?
Can C01 and D00 be interchanged?
Thanks.
