Arduino Vacuum Tube Stereo Preamp : Parts & Circuit Diagram

Although the developer retired it, all parts, circuit diagrams are available. Let us have a look at Arduino vacuum tube stereo preamp thing and imagine to modify it to make it more classic and premium quality. We published the previous guide to have snake animation on TM1637 LED display.

Arduino Vacuum Tube Stereo Preamp : Parts & Circuit Diagram

E88CC-TK Black Diamond Series Preamp Tube

6922 Electro-Harmonix tube is of good quality. We are using 12B4/12B4A Triode here. First part you need is PCB, which you will see here as discontinued product, you have to order to manufacture the PCB from the files after any modification you want :

You’ll get link on documentation, source code which will land you to :

You’ll see the list of all the needed parts. And circuit diagram, we kept copy on our server :

We need :
Our custom build Preamplifier PCB
Preamplifier PCB parts
Preamplifier Chassis parts
Arduino Nano V3.0 with headers
Red LCD 1602 Display Module (HD44780 or compatible)
30×22 Aluminum Volume Knob – LINK
Two 12B4/12B4A Triode
Two 9 pin Ceramic Tube Socket PCB (0.750” top diameter)
24V/1A DC Supply (3-prong) pn# 1940635 – LINK

We must show you some developers who build their own stuffs :

The same original developer actually has currently available ready to order vacuum tube stereo preamps but we lack detailed idea about them :

Of course you can ask the developer directly for any code or file for free (related to that retired Arduino Vacuum Tube Stereo Preamp project) :