R19 , R20, and R22??

[spongetone]

Hey!
Question about the A12 kit I'm working on:

The Bill of Materials lists two resistors R19 and R20 (1M00) that are color coded Brow, Black, Black, yellow, brown that don't seem to be here in the resistors supplied. On the circuit board there is also an R22 (100) that is not here also. The directions say to omit R20 and R22 if using a discrete op amp (The SC25 I ordered?)

In the bag labeled resistors-there were, however three light brown resistors (?) with a single brown stripe on them-where do they go?

I'd love to finish this today for a session tomorrow, if possible.


I really love my two N72's I have already done, by the way!

[tpryan]

R19 and R20 are only used if you're also installing U3 for a DC servo. For the standard A12, stuff the board as described in the "Trim" column in the table on the schematic.

[spongetone]

So-in my case-I don't add R 19, R 20, and R22-correct?

And, to clarify-the three extra resistor-looking things with the single brown stripe are those parts I won't be adding-correct?

Sorry to be so dumb...

[tpryan]

In step 5, you can see that there are parts installed at R19, L1, and L2. These are the zero-ohm jumpers with the single black band, line item 23 on the BOM. The board won't pass a signal without them.