Monthly Archives: November 2025

Old Book Teardown #19: Encyclopedia of Electronic Circuits Volume 6 (1995) | In The Lab

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Silly Job Title: Technical Director. I am the Technical Director!

In this video we take a look inside Encyclopedia of Electronic Circuits Volume 6 by Rudolf F. Graf and William Sheets.

Some circuits of interest included:

Page Circuit
387 Heartbeat Transducer
531 Geiger Counter
663 FM Bug

And some new terms that we learned were:

  • AGC: Automatic Gain Control
  • ALC: Automatic Level Control
  • IF: Intermediate Frequency
  • He: Helium
  • Ne: Neon

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Mail Call #52: Maker Advent Calendar, Banana Cables, Test Probes, Brushes and More! | In The Lab

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Silly Job Title: Fixeruperer. I am the Fixeruperer!

In this video we take a look at what arrived in the mail from AliExpress, Amazon, and The Pi Hut:

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Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Yum Cha IC PullerThis is an image of the product.

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Learning the Art of Electronics: 1L.2.4.1 Measure Your DVM’s current output in diode test mode | In The Lab

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Silly Job Title: Wattage Warlock. I am the Wattage Warlock!

In this video we continue to work our way through Learning the Art of Electronics. In this video we continue with 1L Lab: DC Circuits and measure our DVM’s current output in diode test mode.

We use the Fluke 17B+ Digital Multimeter for voltage and current measurements.

We use the EEVblog BM2257 Digital Multimeter for voltage and current measurements.

We use the Carpenter Mechanical Pencil to take notes.

We use the Kaisi S-160 45x30cm Repair Mat as our workspace.

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Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Yum Cha 9 in 1 Air Quality MeterThis is an image of the product.

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Module Monday #7: HW-028 Rain Drops Sensor Module | Learning Electronics In The Lab With Jay Jay

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Silly Job Title: Bench Master. I am the Bench Master!

In this video we take a look at the HW-028 Rain Drops sensor module: Separate PCB Board Raindrop Module Sensor Rising Water Level Detection Module Raindrop Sensor Board. Project doco is here: HW-028.

We found some instructions and tutorials, including these:

Also we noted the use of the LM393 comparator on the module.

Thanks very much for watching! And please remember to hit like and subscribe! :)

Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Galacok 12 Pcs Magnetic Phillips Screwdriver SetThis is an image of the product.

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