Breadboard for High Frequency Circuits (Prototype)

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Breadboards are particularly prone to capacitive coupling between the contacting clips, and thus they are not suitable for trial production of high frequency circuits. Here, we’ve made the breadboard for high frequency circuits.
You would see no difference from an ordinary breadboard on the surface. The one looking like a marking pin on the right is an accessory. We’ll explain how to use it later.

高周波用BB透明ブロック_表面全体図まちばりつき

On the back, the center unit with a row of five holes is transparent.

高周波用BB透明ブロック_裏面全体

This transparent unit can be detached and attached by hand.

高周波用BB透明ブロック_裏の透明蓋を外す

To remove the transparent cover, place a finger in the notch at the edge and pull it out. The transparent cover and fitting have holes. It is to provide the feature of the lead-through breadboard, but not specifically for high frequency circuits. The role of these holes is explained in this article.

高周波用BB透明ブロック_端の切りかき

Now, we’re going to show you the major characteristics of this breadboard. The contact clips are removable. By having the contact clips located sparsely, you can reduce electrostatic coupling. Use the marking pin to remove a contact clip. Stick the marking pin through the hole on the surface and push the contact clip. (The contact clip is a metal part buried in the breadboard.)

高周波用BB透明ブロック_まちばりでクリップを抜く2高周波用BB透明ブロック_まちばりでクリップを抜く

The contact clips are fitted tightly, so you need to push them strong in order. Finally, pull them from the back side to remove them

高周波用BB透明ブロック_裏から指でクリップを抜く

!! Caution !! Be careful not to get your finger under where the marking pin is pushed in. You may sting your finger.

高周波用BB透明ブロック_まちばりの裏に指_text

Leave necessary contact clips and pull out other than those needed. It is obvious where the contact clips are located as it is transparent. Be careful not to lose the removed clips.

高周波用BB透明ブロック_クリップが抜けた様子表面から

Next, we’ll see the actual change in characteristics of the high frequency circuit on this board.

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