Grisha

Hi Moogah. Thank for your answers, it's more clear to me now ! I've found this datasheet ...but i still don't see the real difference beetween them. Well, today I've ordered my components, so...we'll see wednesday if I make a good choice. :)

Hi everybody ! I begin to buy components to make my Quad-Sid Box and I have some questions who worry me. -Can I use BC 547B instead BC 547 (without character) ? Same question with 337B or C instead BC 337. -Can I use oscillators in HC49 case instead HC18 ? -Can I replace 330nF ceramic caps by Polyester caps -little rectangular capacitor in yellow case- ? -What are Styroflex caps ? Are they just Polystyrene Film capacitors or... ? Thank you ! :) And thank to TK and all DIY builders. ;)