Colpitts XTAL Oscillator Rev 1 Assembly Sheet
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PL
| Qty | Value | RefDes | Qty | Value | RefDes | |
|---|---|---|---|---|---|---|
| 1 | 0.1uF (0805) | C4 | 1 | Header, 1x6 | J2 | |
| 1 | 10nF (0805) | C3 | 1 | DC Jack | J3 | |
| 2 | 470pF (0805) | C1,C2 | 1 | SMA (opt) | P1 | |
| 2 | 2N3904 | Q1,Q2 | 1 | BNC (opt) | J1 | |
| 2 | 10K (0805) | R1,R2 | ||||
| 3 | 1K (0805) | R3-R5 | 1 | UUT | Y1 | |
| 1 | 47 (0805) | R6 |
Rework
- Cut etch R2 to C2
- Cut etch R3 t J2-1
- Cut etch J2-1 to (marked Q2) Emitter pin
- Add wire front side of PCB from R1 (to R2 side) to C1 (towards BNC side
- Add wire rear side of PCB from J2-1 to (marked Q2) Base pin
- Add wire front side of PCB C1 (to R3 side) to (marked Q2) Emitter pin
