After a run of Bally solenoid driver board repairs I was down to my last couple of chips, a quick search found these are obsolete so the next option is to make up some,
Sourced some 74HCT154D in a SO24 package from mouser,checked the data sheet for pin alignment,some blank dip24 to so24 pcb's from ebay and some 2.54 mm male pcb header pins from jaycar(went with the square shape much to cwispy's disgust).A few quick lessons and plenty of looking over Jomacs shoulder on how to properly solder surface mount chips and put them together.
Tested them in my cheap IC tester from ebay ,all good then tested in a solenoid driver board in a game using a 24pin wipe socket,all good,made up 20 of them so will not runout of them in a hurry anytime soon I hope.
All parts are readily available and easy enough to make yourself.
Typical after finishing these and going through some parts boxes I found 10 74154 IC's I bought years ago