Component questions (different pakages)

MIDIbox FM
1

I’ve started to build a FM module, but i got smd tl074 and a “standard 2 pin” 14.318Mhz crystal.

Have anyone made a circuitboard for thoose components?

And is it possible to use wall-wharts instead to make the ±12v (or prefferably lower).

2

I’ve started to build a FM module, but i got smd tl074 and a “standard 2 pin” 14.318Mhz crystal.

Have anyone made a circuitboard for thoose components?

The SMD tl074 would work, but you have to make yourself a pcb for it, I think.

For the crystal I am not so sure. There are some differences between the crystal-types, so I’m not sure, If yours will work.

In theory you could use two (DC-) wallwarts to get +/-12V. Not a recommend solution, but it would work.

greets

Doc

3

This page here describes how to build a +/- power supply from a AC-AC wallwart.

http://electro-music.com/forum/topic-12968.html

I think this is the kind of wallwart he recommends to use.

http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=100061&pa=100061PS

Would someone else like to double check this and make sure it would work?

4

Yeah, the AC adapter solution seems to be working. And as far as i’ve read the crystal wont work.

And my question was if someone had made a SMD tl074 PCB allready or have the brd file so it’s possible to change package.

5

Maybe you can just figure out adaptors ? Little PCBs that convert the SMD to DIP

6

Maybe you can just figure out adaptors ? Little PCBs that convert the SMD to DIP

Such things are available. Try google, or try here (google’s first reply):

http://www.advanced.com/soicstart.html