Tube doc scans…

Pt 2278
Pt 2279
A couple scans of the docs that came with the pile of retro Russian vacuum florescent tubes for our Ice Tube Clock kit – clearly a piece of history for true tube lovers!

Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here:

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in!

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community!

CircuitPython – The easiest way to program microcontrollers –

Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !


  1. Hi Limor, I wonder if I can get a copy of the whole document that came with the tubes. I kinda like vacuum tubes since I grew up with them. Many thanks and I look forward to getting my Ice Tube kits.

    John Tomlinson,CET
    John’s Detectors
    Badlands of West Texas

  2. wire, the only thing we got with the tubes is the somewhat-wretched scanned paper linked to in the blog post 🙁
    Theres also some documentation here

  3. Many thanks Limor


  4. Wirechief, Limor,

    These “ИВ-18 type 2” indicating gauges are still available from several russian electronics shops for 2.5-3$. If you like I can try to contact them and try get some documentation.

    I also found this one:

    If you need help with the translation, please let me know.


  5. Howdy Anton, You must speak Russian ? Yes it would be interesting to translate so I would like your help. I also have a Russian that has e mailed me and needs a certain type searchcoil from my store. I might have to recruit you to tell me exactly what he is looking for. Thank you Anton and be safe.

    John Tomlinson,CET

Sorry, the comment form is closed at this time.