Flashing circuit for MTH RR crossing

BUDGERMAN,

look at this item on ebay,might be what you are looking for.i have used their items in the past,with no problems.250995524072

rich b

Rich B:  This looks good, however my signal has 8 LEDS with a common ground and I am not sure this will drive them.  What do you think?  Price is sure great.

Bud

Since it appears you're willing to build a new one, did you consider repairing or duplicating the MTH electronics?  As the ebay photo shows, the circuitry to perform this function is fairly modest. In a recent thread one of the guys traced out the circuit from an MTH 3-aspect signal timing circuit which I'd guess is of similar complexity to what you have.  The parts to duplicate it was about $1-2.  If you can post a photo of the board, I'm sure the usual suspects will offer their opinions.

As the ebay listing points out, it is not suitable for common cathode wiring as your signal apparently is.  Plus it operates on low-voltage which might require adding a voltage regulator if you don't have 3-5 VDC handy.  It would probably take a $1-2 of parts to modify this circuit to run off 10-14VAC accessory power (add a voltage regulator) and to drive your LED wiring configuration (add some transistors) but by that time you're probably better off just building (re-building) the circuit.

OTOH, I'd think what you're looking for is available off-the-shelf(?).

Stan

Off the shelf or parts list and schematic woulf be fine.

Bud