Vacuum tubes used without an Arduino! Is it possible?
JLCPCB Only $2 for PCB Prototype any colour https://jlcpcb.com/
PCB + SMT Assembly from $2

The vacuum tubes in my preamplifier (that we open up in this video) made me think that we could, perhaps, do more things with a thermionic valve or two?

So watch in amazement at the complex circuitry I have painstakingly put together to demonstrate to you, using a vacuum tube (in fact, two triode tubes in one body).

And some ear (and eye) candy kits that can be bought for very little $$$ that use the amazing vacuum tubes.

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INFORMATION
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Basic Astable Multivibrator Circuit (transistor)
https://www.electronics-tutorials.ws/waveforms/astable.html

RCA 3A5 Datasheet from 1942 ← yes, that's a real date!
http://www.r-type.org/pdfs/3a5.pdf

Marshall Amps Wikipedia Entry
https://en.wikipedia.org/wiki/Marshall_Amplification

Play It Loud: The Story of Marshall Amp 2014 part 1/2
https://www.dailymotion.com/video/x6qhq32
https://www.youtube.com/watch?v=M7077Otdq_s

MARSHALL AMPLIFIER SCHEMATICS
https://drtube.com/library/schematics/69-marshall-schemas

The source of my inspiration
https://hackaday.io/project/165862-vacuum-tube-game-in-21st-century/log/164420-most-useless-application-led-blinking-by-3a5

========
PRODUCTS
========
6J5 Vacuum Tube HIFI Headphone Amplifier Kit
https://uk.banggood.com/SKU554201-p-1226329.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

**Assembled** AC 12V 1A 6J1 Preamp Tube Preamp Amplifier Board $11.04
https://www.banggood.com/Aassembled-AC-12V-1A-6J1-Preamp-Tube-Preamp-Amplifier-Board-PreAmplifier-Module-p-1275338.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

The Transparent Acrylic Housing Shell For 6J1 Tube Preamplifier
NB: This is for a DIFFERENT amplifier even though Banggood recommend it on their product page. Do NOT buy for above amp.
https://uk.banggood.com/Transparent-Acrylic-Housing-Shell-For-6J1-Tube-Preamplifier-Amplifier-p-1221781.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

Buy the FULL SET of PSU x 2 + AMP for $34.34 £27.16 (kit) or assembled ($38.74 £30.01) from AliExpress
(I am very tempted)
https://www.aliexpress.com/item/32888348932.html

My Stereo Pre Amp with 6J1 vacuum tubes (SUCA Audio)
(American equivalent 6AK5 and European one is EF95)
https://uk.banggood.com/DING-SHINE-HiFi-Digital-6J1-Vacuum-Tube-Treble-Bass-Mini-Stereo-Audio-DAC-Pre-Amplifier-p-1273994.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

### List of all my videos
(Special thanks to Michael Kurt Vogel for compiling this)
http://bit.ly/YouTubeVideoList-RalphBacon

If you like this video please give it a thumbs up, share it and if you're not already subscribed please consider doing so and joining me on my Arduinite journey

*My channel, GitHub and blog are here*
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