step 6 problem

[convola]

this is picture of tp3 and tp6. what is the problem?

[Carl-NC]

Your delay circuit isn't working. Make sure R6 isn't zeroed, and C8 is correct.

[convola]

Your delay circuit isn't working. Make sure R6 isn't zeroed, and C8 is correct.

Are you sure you're talking about this?

[Carl-NC]

No, the schematic I have has different numbering. Look at the pulse delay pot & cap on the MC14538.

[convola]

I have built the MPP REV-E. I think you are talking about this portion right?

[convola]

tp2 and tp6 like this

[convola]

1- tp8 and tp6
2- tp9 and tp6
3- tp10 and tp6