Let me first start by saying that CAPI has updated their VP26. The older version had a silver face and a similar but different PCB. I was caught in the middle of the transition and the confusion I experienced was the result. CAPI made it clear that the work-arounds are temporary, and a more straightforward approach is on the way.
The build instructions are no longer emailed out with your purchase order. Instead you will find them here, from the CAPI site. As the site states, the original assembly guide is still relevant as a guide, but I found that looking at the other listed documents BEFORE the build is a must.
On page 6 of the assembly guide, you will see it gives you a list of the resistors. These are NOT the resistors you are given with the updated build. You will find the proper component list here, the VP2x Rev B BOM.
If you opted for the stepped gain switch, you will find the resistor list here, and the the installation guide here. I strongly recommend the stepped gain switch. settings are easy to replicate, and the knob is sooooo satisfying.
The general installation guide has a great resistor organization page you can print out, but is outdated. I have made one that you can print out and use for the new build here. It also contains the resistors needed for the optional stepped gain switch.
If you are building your VP26, I would recommend purchasing an assembled Op-Amp. If you build both the pre-amp and op-amp, there are too many variables to troubleshoot if your finished product doesn’t work. That being said, you can run a series of measurement tests listed on page 47 of the assembly guide after completion.
I’m not a forum fan by any means, but if you run into problems there is a lot of great information here. If you don’t find an answer, You can reach out to CAPI here. Jeff (the owner and operator) will get back to you in a timely manner is is a supper nice and helpful dude.