I'm building a simple 9v linear supply using a 7809. The transformer is capable of the 300mA that might be drawn (guitar effects supply). I'm looking for a a simple way of limiting the output current. The regulator has a inbuilt current limit of course but that leaves me with a choice of 500mA or 100mA - too much or too little. Any suggestions? Putting the regulators in parallel seems wrong as it relies on them being very closely matched as the load is variable, but maybe that's a workable solution?
Edit: Should have said that I'm thinking about a through hole device - My experience predates SMD. I'm just getting back into design after a few decades away and I'd like to avoid surface mount for this project, but realise it may not be possible.