Hey so its been a while since I touched this project but it hasn't been forgotten. A user on this site was very interested in the DT JFET Pre I designed within this project, so I got back to work on it :).
So when I went to get PCBs ready to order I realized that the git commit with the finished board was never pushed. At the time I couldn't find where I put my laptop's backup so the board was essentially lost. I decided to redesign the board in KiCAD, its a little bigger but here it is:
OSHPark Renders:
Top:
Bottom:
So after doing a quick redesign I produced gerbers and did a quote with OSHPark to have it made. Around the same time I was ordering some other boards and found out that I had my laptop's backup on a flash drive when shuffling through files. So I decided to order both versions from OSHPark and they arrived today:
Also in this update I have the bill of materials, which are viewable below and available as open document format in the files section of the project page. The BOM:
Symbol | Value | Package | Quantity | Digikey Part Number | Manufacturer Part Number | Price | Comment |
C1 | 4.7uF | 4X6mmCAP | 1 | 493-10381-2-ND | UMW1V4R7MDD1TP | $0.36 | |
C2, C3 | 10uF | 4X6mmCAP | 2 | 493-10354-1-ND | UMW1C100MDD1TP | $0.36 | |
P1, P2, P3, P4 | Header 2 | HDR1X2 | 4 | Header 2 | |||
Q1 | 2N5457 | TO-92A | 1 | 2N5457-ND | 2N5457 | $2.19 | |
R1 | 6.8K | R0805 | 1 | 1276-5320-1-ND | RC2012F682CS | $0.10 | |
R2 | 3M | R0805 | 1 | 1276-5448-1-ND | RC2012F305CS | $0.10 | |
R3 | 2.2K | R0805 | 1 | 1276-5290-1-ND | RC2012F222CS | $0.10 | |
R4 | 51K | R0805 | 1 | 1276-5379-1-ND | RC2012F513CS | $0.10 | |
Total | $3.31 | ||||||
Its a pretty inexpensive build even including the PCB cost which were around 4 dollars each for a round of three from OSHPark. Now we wait on a digikey order to arrive and we're off to the races, stay tuned for more to come!
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.