My dddac + some questions

[revell]

Hi, this being my first digital project, that involves soldering,😀
i have some questions : (I attached a picture to clarifie)
- Is the orientation of the clock correct this way
- the 20 uf elco near the clock : is the + and - correct

Thanks

 

[Guido Tent]

Hi, this being my first digital project, that involves soldering,😀
i have some questions : (I attached a picture to clarifie)
- Is the orientation of the clock correct this way
- the 20 uf elco near the clock : is the + and - correct

Thanks

Hi

pin 1 is at the dot. Pin 4 is down, right. This pin is ground. Pin 5 is the output, upper right.

 

[pburke]

clock sits correctly (there needs to be a wire jumper under the PCB to connect the pin under the corner with the "T" of the word Tent to connect to the positive lead coming from the regulator (the lower of the two long jumpers you have on top of the PCB).

The caps positive lead should also be oriented to the trace coming from the lower jumper, just the way you have marked it on the image. Or use some non-polar Blackgates and you don't have that problem ;-)

Peter

 

[guido]

Hi,

One other advice, use some proper sockets next time for the ic's.
These cheap ones are

Gebruik die met gedraaide contacten (rond).
Safes you from fustration later 🙂

mvg,

 

[revell]

Ok thanks everybody for all your fast advice;
Now I can continue constructing the cooling tower😉