First Vero - encourage and correct me!

Started by mistahead, May 02, 2011, 12:59:12 AM

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mistahead

Nothing world changing - I want to knock together the original Q&D Audio Test Oscillator from RG's trove of goodness:
http://www.geofex.com/FX_images/q&dosc.pdf
To layout:
http://img535.imageshack.us/i/qadato01.png/

And may yet change it to include the fixes in the second diagram but am starting small as this is my first schematic to layout job, plus still getting my head into the labelling on the layout creator so my apologies there.

Any comments would be appreciated and correction adored.

mistahead

Hmmm I did seem to miss that I will need to do something such as bridge A3 over to A5 and then drop the jumper end G4 down to G5... the little loop on the left of the schematic is a bit off on the vero.

Kearns892

Hey  Mistahead,

I haven't looked over everything (vero is not my strong point), but after checking data sheets for the 2N3904 it looks like you have your transistors backwards.

mistahead

Thanks - quite possible that it the case, I am yet to mark the CBE's for them either so I should be able to recover from that relatively gracefully ;)
http://img844.imageshack.us/i/qadato01.png/

Updated with the rest of the stuff up resolved I think.

Kearns892

Forgive me if I am wrong, but it looks like they are still backwards? Sorry it is 3 AM here, I should probably go to sleep.

mistahead

Yes they are, didn't see that until after my update.

I also believe there is a mistake in around C1, C2, R3 and R4... just trying to decide if there is a good way to fix it without adding another column but I suspect not... will look again tomorrow at work (yes I am also in employee of a government!).