Frog Tube Preamp DIY PCB inspired by iconic Alembic F2b preamp from the 1970's

Description

This is not a kit, this is a DIY bare printed circuit board.  Instructions will be sent to access the documentation to complete the PCB.
Ultimate DIY tube preamp.  Designed by me in USA, (fabricated in Hong Kong) Save tons of money building this tube preamplifier that is inspired by the Fender Dual Showman and Alembic F2b preamp circuits, this all-tube DIY tube preamp PCB with onboard high-voltage power supply (~190VDC using 9-12VDC wall transformer) allows you to capture the iconic Alembc sound of that 1960's/1970's circuit in a much smaller space. This circuit board when mounted in a small enclosure can cuddle up with your other effects on your pedal board (see sample build pictures included). This tube preamp PCB can be built with Fender or Marshall tone-stack, use many of the 12Ax7 preamp tubes, Russian 6NxP preamp tubes or even Russian 6n16 and 6n17b subminiature tubes. There is also a heater switching option so you can switch between the 12Ax7 and 6NxP tubes.
Documentation:
This is not a kit.
Suggested suppliers for components and bill of materials are provided in the 20 pages of documentation on frogpedals dot com product documentation page.  Links to build documentation will be sent with your order as well. This is an intermediate build. Suggested for experienced pedal builders or tube amplifier builders. This project, once built, does create high DC voltages which can be dangerous if not handled properly.
Shipping:  I will combine shipping for up to 8 boards
This PCB was designed by Mark at frogpedals dot com and has been sold and shipped to the US, Canada, Australia, UK, France, Belgium, Spain, Italy, Germany, Czech Republic, Japan, Brazil, and many other countries etc.
Board is the highest quality manufactured with 2 ounce copper (twice the normal amount) and with gold solder pads (ENIG) for a corrosion-free build.
For International buyers, you are responsible for any country specific fees/taxes/import duties, etc.    So far, I have not had any problem shipping to the countries listed above.