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Unfortunately, there are many errors or discrepancies between the various resources available for this project.  Eventually, they will all be listed here; if you can then update one of the resources (schematic, PCB layout, assembly directions), please do so and then remove the error from this list.

===== Forum threads: =====
(extract info from thread, place on this page and remove thread from list:)

  * http://www.ladyada.net/forums/viewtopic.php?t=3677
  * http://www.ladyada.net/forums/viewtopic.php?t=3409
  * http://www.ladyada.net/forums/viewtopic.php?t=3225
  * http://www.ladyada.net/forums/viewtopic.php?t=3179

===== Part changes:  =====
==== Battery board ====
Omit parts  R3, R4, R5 and Q2 on the LiPoly board; they are only needed to charge the battery if it falls below 3.7v, which it should not do.

==== Main (radio) board ====
 
^ Part ^ Incorrect ^ Correct ^ Remarks ^
| C20 | 160pF, do not place | 390-550pF, placement recommended. |
| C40 | 68pF | ? | Sirenza datasheets say 1-2pF, not clear if this is an error or not |
| C50 | ? | 1 uF 1206 |
| C51 | ? | .1 uF 1206 |
| C52 | ? | 1 uF 1206 |
| C53 | ? | .1 uF 1206 |
| C63 | ? | 1pF 0603 |
| C77 | ? | 4.7uF or 1uF, 0603 | Power supply filter cap; 4.7uF part is difficult to get in 0603, 1uF is ok |
| C80 | 20pF | 22pF | Substitute to save money by combining order with other 22pF caps |
| C81 | 20pF | 22pF | Substitute to save money by combining order with other 22pF caps |
| C83 | ? | .1uF ? | not listed in instructions |
| C84 | ? | .1uF ? | not listed in instructions |
| IC2 | LM2733X | LM2731Y | Either part will work, but the 33X is not recommended for supplies less than 16v |
| L1 | 15 uH | 7.3 uH | Only change if using LM2731Y | 
| L5 | ? | 1K resistor |
| L6 | ? | 1K resistor |
| R1 | 510K | ? | Pick a low-voltage point (e.g. 3.7v) -- this voltage divider should |
| R2 | 220K | ? | should output 1.1v at that point.  Not currently implemented in firmware. |
| R3 | ? | 39K | 
| R4 | ? | 12K |
| R8 | ? | do not place | not usually necessary |
| R9 | ? | do not place | not usually necessary |
| R12 | ? | 100 ohms | not a critical value (instructions say 68 ohms) |
| R13 | 100K | 63K | Value may vary to adjust VCO DC Offset gain |
| R15 | 100K | 33K | Value may vary to adjust VCO DC Offset gain |
| R27 | 0 ohms | ferrite bead |
| R28 | 0 ohms | ferrite bead |

===== Misc =====
The silkscreened part numbers for the tiled Gerbers are incorrect; see http://www.ladyada.net/forums/viewtopic.php?t=4143 for more info.
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