017-Johnson Counter

Halogenek·modular-rf-bench·src/017-johnson-counter/017-johnson-counter.kicad_pcb

017-Johnson Counter PCB layout, top view — open source board by Halogenek

About the 017-Johnson Counter PCB

017-Johnson Counter is an open source PCB design by Halogenek, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 20 × 20 mm, with 12 components from 5 distinct parts.

Other key parts include the 74LVX74MTCX. By type, the board carries 3 connectors, 3 resistors, 1 IC and 1 capacitor.

From the project

Cheap and simple setup for learning RF electronics

I came across an awesome system for rapid prototyping RF and Microwave solutions by connecting individual components on small PCBs, just like LEGO. This Modular building block system for RF and microwave design of prototypes is in my opinion a very clever way of building RF circuits. On their website the sell almost every available modern RF IC or passive network in a form of a rectangle PCBs.

017-Johnson Counter, from the project README
From the project README

Main components on the 017-Johnson Counter

017-Johnson Counter bill of materials (BOM)

12 components, 5 distinct parts.

QtyPartRefs
1
74LVX74MTCX
U1
3
CONN
J1, J2, J3
4
M2
H1, H2, H3, H4
1
100n
C1
3
47R
R1, R2, R3

017-Johnson Counter design files

The KiCad project lives in the Halogenek/modular-rf-bench repository on GitHub; these links point at the commit this page was built from.

017-Johnson Counter: common questions

How big is the 017-Johnson Counter PCB?

The 017-Johnson Counter measures 20 × 20 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the 017-Johnson Counter?

12 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the 017-Johnson Counter design files?

From the Halogenek/modular-rf-bench repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 017-Johnson Counter design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which Halogenek chose for the repository.

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