And I would not order them from eBay. Better to get them from a reputable supplier that is guaranteed to send you working units.
/Mike
On Sat, 2018-07-28 at 00:30 +0200, Malte Rogacki gacki@... [korgpolyex] wrote:
Yes, no programming required; just swap the chips.
In case you'd rather order them locally: TC40H is the equivalent to 74HC.
So you can also use a 74HC240 and 74HC138 instead.