DIY Curve Tracer (analog)

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#22
If you used JLPCB or PCBWAY, you need to very carefully go through the imported BOM on their site.
We used PCBWAY successfully for 10 x Main and 10 x Front board.
Check to see if you only selected one PCB populated, and not all 5.

Be aware that some of the parts may not be available to them and are therefore priced very high, or they use large minimum quantities.
Go through the BOM item by item and verify they picked the right part or eliminate it from their BOM.
This is hard work, I know. Be aware that their part situation can change daily which is why we can't create a clean 100% BOM for them.
There will be parts you need to order through part suppliers like Mouser of Digikey.
Good luck.
 
#23
Paulwv said:
If you used JLPCB or PCBWAY, you need to very carefully go through the imported BOM on their site.
We used PCBWAY successfully for 10 x Main and 10 x Front board.
Check to see if you only selected one PCB populated, and not all 5.

Be aware that some of the parts may not be available to them and are therefore priced very high, or they use large minimum quantities.
Go through the BOM item by item and verify they picked the right part or eliminate it from their BOM.
This is hard work, I know. Be aware that their part situation can change daily which is why we can't create a clean 100% BOM for them.
There will be parts you need to order through part suppliers like Mouser of Digikey.
Good luck.
Click to expand...
I did send this to PCBWAY, is there a way that I can cross reference your prior order with them?
 

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#25
Want to be a member. What did PCBWAY tell you about the BOM they sent you. I gave them slow and Painful feedback on the original BOM I sent for the original 10 boards. We finally came to a close and they built the 10 boards sets. It looks like they do not have the BOM updated for my build. Tell them to use it. Otherwise, I will have to post the BOM I ended up with for the build. The problem is parts come in and out of availability so It almost always changes. I don't have the BOM at this computer I will have to send it later if you can't get it from PCBWAY.
 
#32
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#35
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PCBWay Bom Quotation, Product No.:T-U519W12659A
Item #*Designator*QtyManufacturer*Mfg Part #Description / ValueVendor Part #*Package/Footprint*Unit Price(10 sets)*Total*Delivery Time*Actual Purchase Mfg Part #*PCBWay NoteCustomer ReplyPCBWay Update
1C1,C5,C7,C10,C11,C13,C17,C25,C29,C33,C35,C37,C45,C47,C51,C75,C77,C81,C83,C12220SamsungCL21B103KCANNNC10nF『 』CAP CER 10NF 100V X7R 0805Digi-Key『 』1276-1249-6-ND0805-CAPC2012M$0.019$3.800
2C2,C4,C6,C8,C12,C14,C16,C21,C22,C24,C28,C32,C34,C38,C40,C44,C46,C48,C50,C52,C76,C78,C80,C82,C100,C102,C12127SamsungCL21B105KBFNNNE1uF『 』CAP CER 1UF 50V X7R 0805Digi-Key『 』1276-1029-6-ND0805-CAPC2012M$0.008$2.160
3C3,C42,C71,C73,C1205KEMETC0805C101J5GACTU100pF『 』CAP CER 100PF 50V COG 0805Digi-Key『 』399-1122-6-ND0805-CAPC2012M$0.148$7.400
4C20,C27,C70,C724KEMETC0805C100K5GACTU10pF『 』CAP CER 10PF 50V C0G 0805Digi-Key『 』399-7975-1-ND, 399-7975-6-ND0805-CAPC2012M$0.139$5.560
5C411KEMETC1206C102KAGECAUTO1nF『 』CAP CER 1NF 250V X7R 0805Digi-Key『 』399-17177-2-ND1206-CAPC2012M$0.357$3.570Package: 1206 (3216 metric)No Pop
6C43,C49,C873KEMETC0805C104M5RACTU0.1uF『 』CAP CER 0.1UF 50V X7R 0805Digi-Key『 』399-1169-2-ND0805-CAPC2012M$0.154$4.620
7C741KEMETLDEDB3100KA0N000.1uF『 』CAP FILM 0.1UF 20% 63VDC PEN 1210Digi-Key『 』399-12863-1-ND1210-CAPC3225M$1.050$10.50010%OK
8C85,C862YageoAC0805JRNPOYBN101100pF『 』CAP CER 100PF 250V COG 0805Digi-Key『 』311-3140-1-ND0805-CAPC2012M$0.185$3.700
9D20,D22,D243NexperiaBAV199,215BAV199『 』DIODE SI 85V 0.16mA SOT-23-3Digi-Key『 』1727-2909-6-NDSOT23-3M$0.130$3.90075VOK
10D21,D232Vishay SemiconductorsSMF15A-E3-08SMF-15A-E3-08『 』ESD Suppressor TVS ±30KV 2-Pin SMFDigi-Key『 』SMF15A-E3-08DKR-NDSMF$0.307$6.140The part we can get here was made in the year of 2019.OK
11D251ON SemiconductorMMBD1503AMMBD1503A『 』DIODE ARRAY GP 200V 200MA SOT23-3 4pFDigi-Key『 』MMBD1503ADKR-NDSOT23-3M$0.210$2.100
12D70,D1202Vishay1N4148W-E3-181N4148『 』Diode; 500 mA (Surge); 1.0 V (Max.); 400 mW; 450 degC/W; 4 pF (Max.); 4 nS (MaxDigi-Key『 』1N4148W-E3-18CT-NDSOD123$0.120$2.400350 mWOK
13D731ON Semiconductor+H50S1GS1G『 』Diode Switching 400V 1A 2-Pin DO-214AC T/R 12pFDigi-Key『 』S1GFSCT-NDSMA-D$0.265$2.650
14D1211ON SemiconductorSBAT54T1GBAT54『 』SBAT54T1G Series 30 200 mA Surface Mount Schottky Barrier Diode - SOD-123Newark『 』50AC7280SOD123$0.416$4.160
15L70,L712CyntecSDET32251E-4R7MS4.7uH『 』Fixed Ind 4.7UH 1.9A 108MOHM SMDDigi-Key『 』2037-SDET32251E-4R7MSCT-ND1210-CAPC3225M$0.422$8.4407-10 Workdays
16Q201ON SemiconductorBCP56-16T3GBCP56『 』TRANS NPN 80V 1A SOT-223Digi-Key『 』BCP56-16T3GOSCT-NDSOT223-4M$0.223$2.230
17Q211ON SemiconductorBCP53-16T3GBCP53『 』TRANS PNP 80V 1.5A SOT-223Digi-Key『 』BCP53-16T3GOSCT-NDSOT223-4M$0.461$4.6107-10 Workdays
18Q22,Q232InfineonBSS139BSS139『 』Single N-Channel 250 V 14 Ohm 2.3 nC SIPMOS® Small Signal Mosfet - SOT-23Digi-Key『 』BSS139H6327XTSA1CT-NDSOT23-3M$0.450$9.000BSS139H6327XTSA13.5 nC @ 5 VOK
19Q1201ON SemiconductorMMBT3906LT1G2N3906『 』TRANS PNP 40V 0.2A SOT23Digi-Key『 』MMBT3906LT1GOSCT-NDSOT23-3M$0.081$0.810
20Q1211ON SemiconductorMMBT3904LT1G2N3904『 』TRANS NPN 40V 0.2A SOT23Digi-Key『 』MMBT3904LT1GOSCT-NDSOT23-3M$0.239$2.390
21R1,R3,R75,R854KOA SpeerRK73H2ATTD1001F1kR『 』RES 1K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1001FCT-ND0805-RESC2012M$0.126$5.040
22R2,R9,R10,R11,R13,R16,R39,R40,R45,R55,R71,R74,R76,R77,R78,R7916KOA SpeerRK73H2ATTD1002F10kR『 』RES 10K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1002FCT-ND0805-RESC2012M$0.079$12.640
23R4,R5,R6,R8,R12,R56,R62,R848KOA SpeerRK73H2ATTD2002F20kR『 』RES 20K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD2002FCT-ND0805-RESC2012M$0.110$8.800
24R71KOA SpeerRK73H2ATTD4751F4.75kR『 』RES 4.75K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD4751FCT-ND0805-RESC2012M$0.168$1.680
25R141KOA SpeerRK73H2ATTD2211F2.21kR『 』RES 2.21K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD2211FCT-ND0805-RESC2012M$0.168$1.680
26R20,R25,R42,R43,R57,R63,R120,R1228KOA SpeerRK73H2ATTD4992F49.9kR『 』RES 49.9K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD4992FCT-ND0805-RESC2012M$0.110$8.800
27R211KOA SpeerRK73H2ATTD9092F90.9kR『 』RES 90.9K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD9092FCT-ND0805-RESC2012M$0.050$0.500
28R22,R23,R26,R27,R31,R32,R58,R64,R72,R73,R8911KOA SpeerRK73H2ATTD1003F100kR『 』RES 100K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1003FCT-ND0805-RESC2012M$0.100$11.000
29R24,R37,R41,R44,R47,R68,R82,R838KOA SpeerRK73H2ATTD1000F100R『 』RES 100 OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1000FCT-ND0805-RESC2012M$0.110$8.800
30R291KOA SpeerRK73H2ATTD3322F33.2kR『 』RES 33.2K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD3322FCT-ND0805-RESC2012M$0.168$1.680
31R301KOA SpeerRK73H2ATTD3001F3kR『 』RES 3K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD3001FCT-ND0805-RESC2012M$0.168$1.680
32R341KOA SpeerRK73H2ATTD4122F41.2kR『 』RES 41.2K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD4122FCT-ND0805-RESC2012M$0.004$0.040
33R351KOA SpeerRK73H2ATTD1102F11kR『 』RES 11K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1102FCT-ND0805-RESC2012M$0.168$1.680
34R361KOA SpeerRK73H2ATTD10R0F10R『 』RES 10 OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD10R0FCT-ND0805-RESC2012M$0.168$1.680
35R381KOA SpeerRK73H2ATTD1502F15kR『 』RES 15K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1502FCT-ND0805-RESC2012M$0.168$1.680
36R46,R61,R67,R884KOA SpeerRK73H2ATTD1004F1MR『 』RES 1M OHM 1% 1/8W 0805Digi-Key『 』2019-RK73H2ATTD1004FCT-ND0805-RESC2012M$0.126$5.0401/4WOK
37R491Stackpole ElectronicsRMCF1206FT1K001kR『 』RES 1K OHM 1% 1/4W 1206Digi-Key『 』RMCF1206FT1K00CT-ND1206-RESC3216M$0.092$0.920
38R501BournsCRM2512-FX-2000ELF200R『 』RES 200 OHM 1% 2W 2512Digi-Key『 』CRM2512-FX-2000ELFCT-ND2512-RESC6432M$0.472$4.720
39R511Stackpole ElectronicsRMCF2512FT499R499R『 』RES 499 OHM 1% 1W 2512Digi-Key『 』RMCF2512FT499RCT-ND2512-RESC6432M$0.315$3.150
40R521Stackpole ElectronicsRMCF2512FT1K001kR『 』RES 1K OHM 1% 1W 2512Digi-Key『 』RMCF2512FT1K00CT-ND2512-RESC6432M$0.315$3.150
41R531KOA SpeerRK73H2ATTD2001F2kR『 』RES 2K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD2001FCT-ND0805-RESC2012M$0.185$1.850
42R54,R872KOA SpeerRK73H2ATTD4991F4.99kR『 』RES 4.99K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD4991FCT-ND0805-RESC2012M$0.185$3.700
43R59,R652KOA SpeerRK73H2ATTD2003F200kR『 』RES 200K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD2003FCT-ND0805-RESC2012M$0.185$3.700
44R601KOA SpeerRK73H2ATTD4993F499kR『 』RES 499K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD4993FCT-ND0805-RESC2012M$0.185$1.850
45R701Stackpole ElectronicsRMCF1206FT100K100kR『 』RES 100K OHM 1% 1/4W 1206Digi-Key『 』RMCF1206FT100KCT-ND1206-RESC3216M$0.092$0.920
46R80,R81,R86,R904Stackpole ElectronicsRMCP2512FT4R024r02『 』RES 4.02 ohm 1% 2W 2512Digi-Key『 』738-RMCP2512FT4R02CT-ND2512-RESC6432BM$0.394$15.760
47R1001KOA SpeerRK73H2ATTD1802F18kR『 』RES 18K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1802FCT-ND0805-RESC2012M$0.185$1.850
48R1021KOA SpeerRK73H2ATTD2051F2.05kR『 』RES 2.05K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD2051FDKR-ND0805-RESC2012M$0.185$1.850
49R1041KOA SpeerRK73H2ATTD36R5F36.5R『 』RES 36R5 OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD36R5FCT-ND0805-RESC2012M$0.039$0.390
50R1061KOA SpeerRK73H2ATTD95R3F95.3R『 』RES 95R3 OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD95R3FCT-ND0805-RESC2012M$0.185$1.850
51R1071KOA SpeerRK73H2ATTD2000F200R『 』RES 200 OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD2000FCT-ND0805-RESC2012M$0.185$1.850
52R1081KOA SpeerRK73H2ATTD4530F453R『 』RES 453 OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD4530FCT-ND0805-RESC2012M$0.037$0.370
53R109,R1102KOA SpeerRK73H2ATTD1801F1.8kR『 』RES 1.8K OHM 1% 1/4W 0805Digi-Key『 』2019-RK73H2ATTD1801FCT-ND0805-RESC2012M$0.185$3.700
54R1211KOA SpeerRK73H2ATTD2493F249kR『 』RES 249K OHM 1% 1/8W 0805Digi-Key『 』2019-RK73H2ATTD2493FDKR-ND0805-RESC2012M$0.185$1.8501/4WOK
55U11ON SemiconductorMC14040BDR2G4040『 』IC COUNTER 12BIT CMOS 16SOIC 7.5pFDigi-Key『 』MC14040BDR2GOSCT-NDSOIC127P600X16-M$0.741$7.410
56U21STMicroelectronicsHCF4093YM013TRHCF4093『 』Quad NAND w/Schmitt triggerDigi-Key『 』497-14376-6-NDSOIC127P600X14-M$0.538$5.380
57U4,U20,U703Texas InstrumentsOPA2990IDROPA2990『 』40-V, dual 1MHz, rail-to-rail input/output, low-offset-voltage, low-power op amp 8-SOIC -40 to 125Digi-Key『 』296-53506-1-NDSOIC127P600X168_HS-8N$4.415$132.450
58U51Texas InstrumentsLMC555CMX/NOPBLMC555『 』IC OSC SINGLE TIMER 3MHZ 8-SOICDigi-Key『 』LMC555CMX/NOPBCT-NDSOIC127P600X168_HS-8N$2.647$26.470
59U61ON SemiconductorMC14028BDR2G4028『 』Demultiplexer 4-to-10 16-Pin SOICDigi-Key『 』MC14028BDR2GOSCT-NDSOIC127P600X16$1.026$10.2607-10 Workdays
60U211Texas InstrumentsTL071HIDBVRTL071『 』Single, 40-V, 5-MHz, 4-mV offset voltage, 20-V/µs, In to V+ op amp with -40°C to 125°C operation 5-SOT-23 -40 to 125Digi-Key『 』296-TL071HIDBVRCT-NDSOT95P300X130-5M$0.487$4.8707-10 Workdays
61U22,U232Texas InstrumentsOPA209AIDROPA209A『 』IC OPAMP DIFF 18MHZ RRO 8SOICDigi-Key『 』OPA209AIDR-NDSOIC127P600X168_HS-8N$3.216$64.320
62U24,U252Vishay Lite-OnCNY17-1SCNY17-1S『 』OPTOISO 5KV TRANS W/BASE 6SMDDigi-Key『 』160-1309-5-NDSOIC254P1000X6$0.497$9.9407-10 Workdays
63U711Texas InstrumentsOPA207IDOPA207A『 』HIGH PRECISION, LOW NOISE, LOW POWER OP-AMPDigi-Key『 』296-47934-NDSOIC127P600X168_HS-8N$3.077$30.7707-10 Workdays
All Total$507.860

 
#36
Paulwv said:
Unfortunately, we do not sell boards, bare or populated at this moment.
If other users order boards, they typically get 3 or 5 of which they could make the not needed boards available if they post that on any of the Forums.
Click to expand...
I have a set of 5 ordered from JLPCB (China). I managed to source all parts but one resistor, RMCP2512FT4R02, Stackpole, 4.02R 2W, 1%, 2512. I ordered 50x 8.2R 1W and will stack them…
I do not have equipment to automate smd soldering. Since there are parts on both side of the PCBs I will handsolder them. I guess it’s about 300 smd parts which will take me a month, lol
They have a pick-and-place file included in the GIT download, but who produces a 1X batch for a decent price?
From what I saw smallest is 0805 which is not to bad.

https://www.paulvdiyblogs.net/2022/06/the-vba-curve-tracer.html
Blogpost:

https://github.com/paulvee/VBA-Curve-Tracer
Just clone it and you have everything uptodate. Very good documentation, so far…
 
Last edited:
#39
Want to be said:
I posted the same comment two weeks ago and did not receive a reply.
Click to expand...
The picture above from the post 11/4 shows the Special 10 boards BOM, but i can’t find them in the GIT repository. So I suspect they are not set public.

P.s. if you order PCBs from JLPCB you can add stencils to your order which would make it much easier to solder them with a hot air gun by hand. Actually not too bad but tedious.
You get 90% of the parts from Mouser, a few more from DigiKey and pretty much of the rest from Aliexpress. The one Part not obtainable anywhere is the 4.02R 2W resistor. You can make this one up by ordering 50x 8.2R 1W and stack two properly matched ones on top of each other. Easy with SMD.
 
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#40
Frontpanel and Frontboard SMD parts soldered. All parts checked for values and/or shortages. All ok. Next step: Through Holes Parts and ‚sandwiching‘ them together. After that I’ll start with the Mainboard. I obtained all parts from Mouser, Digi-Key and some passive parts from Ali. Spent about $700 CAD on parts and $30 on the PCBs from JLCPCB. All soldered by hand, about two days (I have time, I am retired 🙂. The 4R and 2R 2W resistors are unobtainable. So, for the 4R I stacked two 8R2 (5%, selected low value, ~8R) on top of each other. I arrived at perfect 1R (8x).
76C66BA3-4B80-4E49-8E93-2DA7D21D10DB.jpeg
727D93C0-BB4A-4584-9019-2385DFC7A006.jpeg
7BB62103-DD9C-4FB8-8149-60B56AB10063.jpeg
93FC939A-C9F6-47F5-9166-D40F56850EA1.jpeg


P.S. I build the original ELV KS7000, Kennlinienschreiber. I still have it and it has been a great tool!
 
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