Brian Posted April 29, 2020 Share Posted April 29, 2020 John (boatman) and I have had a look at reducing the number of different resistor values used in order to simplify ordering. The v1.2 design uses 21 different value; v1.3/v1.4 uses just 9. The details of the changes are in the attached PDF document. Note that no other changes need to be made.Bluecom v1.3 Resistor Values.pdf Link to comment Share on other sites More sharing options...
boatman Posted April 29, 2020 Share Posted April 29, 2020 I will update the schematic to version 1.3a and post it here ASAP. Link to comment Share on other sites More sharing options...
boatman Posted April 29, 2020 Share Posted April 29, 2020 (edited) The schematic is now updated to version 1.4. As well as rationalising the resistor values, I have changed C22 from 100nF to 47uF. This is the call button de-bounce capacitor and some builders were finding that there was a audible bump on the line when the call button was pressed hence the value change. The PCB has been updated to allow for an electrolytic cap at C22. The new zip file contains all the new gerbers, schematic, assembly diagram and parts list. PLEASE NOTE: none of these changes have been tested but I am confident they will work OK. The files can be found in the next post. Edited April 30, 2020 by Brian Link to comment Share on other sites More sharing options...
Brian Posted April 30, 2020 Author Share Posted April 30, 2020 The files for BlueCom Version 1.4 can be found below. BluecomBeltpack1_4.zip If you have any question then please start a new topic below and clearly indicate that you are talking about version 1.4. Thanks. Link to comment Share on other sites More sharing options...
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