Revisions to the Pages/Documentation
This page provides a log of activities in concurrent building, debugging, and documenting the kit, identifying changed web pages and describing the changes/status.
| Page | Revised Date | What Changed |
|---|---|---|
| Local Oscillator, USB Control | 12/19/2008 | Moved R6 and R7 out of LO stage and put them in the USB COntrol stage to make pullup resistors
available for USB testing. Tx to Jan G0BBL |
| Local Oscillator, Dividers | 12/8/2008 | Corrected expected pk-pk voltage on test of Si570 output.
Author's measurements were way off due to cheapo scope and huge overshoot. Added warning not to try scope measurements without a good scope & probes & adult supervision. Tx to Van W1WCG for catching this |
| USB | 11/27/2008 | Changed voltage tests to reflect Jan G0BBL's results, Added simple USB polling test using AM radio. |
| Master Schematic, USB | 11/14/2008 | Switched FL2 and FL3 locations to agree with latest schematic |
| Multiple | 11/04/2008 | Added link to main schematic from each stage's schematic section. |
| 02 USB Control, 00 BOM, schematic | 11/04/2008 | Updated pages to reflect new zener diode design on USB-2 and USB-3 leads, replacing original 1N5227B values with BZY55s. |
| 02 USB Control | 10/20/2008 | The J3 connector on the v9.0 board is actually two header pins and not the sockets
shown in the photos. This oversight will be corrected in subsequent
updates to the site's photos. Thanks to Tony Parks for catching this. |
| External Connections | 10/18/2008 | Posted completed and tested Final Stage (External Connections and Final Smoke/RX Test pages. |
| Home | 10/16/2008 |
Added link to excellent site with tutorials on all aspects of soldering. Thanks to Craig KB5UEJ for passing this on to this site. |
| 06 RX Mixers | 10/17/2008 | Posted completed and tested Stage 6 (RX Mixers) pages. |
| 05 RX OpAmps | 10/16/2008 |
Corrected errorneous reference to R20 (should have been R16)
in test of R15/R16 voltage divider. Thanks to Serge RW3ACQ whose eagle-eye cought the error. |
| 05 RX OpAmps | 10/16/2008 | Posted completed and tested Stage 5 (RX Operational Amplifiers) pages. |
| 04 Dividers | 10/16/2008 | Posted completed and tested Stage 4 (Dividers) pages. |
| 03 Local Oscillator | 10/15/2008 | Posted completed and tested Stage 3 (Local Oscillator) pages. |
| 02 USB Control | 10/15/2008 | Posted completed and tested Stage 2 (USB Control) pages. |
| 01 Power Supply | 10/12/2008 | Posted completed and tested Stage 1 (Power Supply) pages. |
| Home, USB, BOM, Schematic | 10/08/2008 | Modified schematics and BOMs to reflect changes between 9/24 and 10/2 and 10/8
versions. Modified Terse build notes to reflect changes on 10/8 sheet 3 |
| PS, LO, DIV, OpAmp, Mixer | 9/29/2008 | Added caveat on testing sections of stage build pages: "This testing section if tentative and the values shown should be taken with a grain of salt, as the author has not yet progressed a build of the V9.0 kit through this stage. When the testing section is validated by the author's build experience, this note will be removed and the change will be noted on the revisions page". |
| Multiple | 9/28/2008 | Added links to datasheets for and orientation pictures of SMT ICs. |
| Multiple | 9/26/2008 | Added clickable links to the schematics. e.g., can click on "To Dividers" link on the LO page's Stage schematic and link over to the Dividers page. |
| Multiple | 9/26/2008 | Updated theory of operation and summary build instructions; annotated sub-schematics |
| Multiple | 9/26/2008 |
|
| All | 9/25/2008 | baseline |