JPH038780U - - Google Patents

Info

Publication number
JPH038780U
JPH038780U JP6950389U JP6950389U JPH038780U JP H038780 U JPH038780 U JP H038780U JP 6950389 U JP6950389 U JP 6950389U JP 6950389 U JP6950389 U JP 6950389U JP H038780 U JPH038780 U JP H038780U
Authority
JP
Japan
Prior art keywords
resistance
continuity
resistances
buzzer
conduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP6950389U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6950389U priority Critical patent/JPH038780U/ja
Publication of JPH038780U publication Critical patent/JPH038780U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例の構成図である。 1……導通試験器回路、2a,2b……プロー
ブ、3a〜3c……判定基準抵抗、4……スピー
カ、5……判定基準抵抗値切替回路、51……パ
ルス発生器、52……バイナリカウンタ、53…
…デコーダ、54a〜54c……リレー駆動部、
54a1,54b1,54a2,54b2,54
c2……リレー接点、55a〜55c……ブザー
信号発生器。

Claims (1)

  1. 【実用新案登録請求の範囲】 電子回路基板上の2点間の導通抵抗を判定基準
    抵抗と比較し前記導通抵抗が前記判定基準抵抗以
    下であれば導通有りと判定してブザーを鳴動し前
    記判定基準抵抗以上であれば導通なしと判定して
    ブザーは鳴通しない形式で電子回路基板上の2点
    間の導通上を試験する導通試験器において、 前記判定基準抵抗を相異る抵抗値を有する3個
    の抵抗で設定するとともに前記3個の判定基準抵
    抗を順次周期的に切り替えつつ導通抵抗を測定し
    かつブザーの鳴動周波数は3個の判定基準抵抗ご
    とにそれぞれ異なる周波数を設定する手段を備え
    て成ることを特徴とする導通試験器。
JP6950389U 1989-06-13 1989-06-13 Pending JPH038780U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6950389U JPH038780U (ja) 1989-06-13 1989-06-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6950389U JPH038780U (ja) 1989-06-13 1989-06-13

Publications (1)

Publication Number Publication Date
JPH038780U true JPH038780U (ja) 1991-01-28

Family

ID=31604862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6950389U Pending JPH038780U (ja) 1989-06-13 1989-06-13

Country Status (1)

Country Link
JP (1) JPH038780U (ja)

Similar Documents

Publication Publication Date Title
JPH038780U (ja)
JPH03116490U (ja)
JPH01102783U (ja)
JPS59168794U (ja) テンポ設定装置
JPS6424563U (ja)
JPS6230185U (ja)
JPH0451615U (ja)
JPH0262499U (ja)
JPS593624Y2 (ja) サンプル・ホ−ルド回路
JPS63181080U (ja)
JPS5810188U (ja) ガスもれ警報器
JPH0416375U (ja)
JPS63156039U (ja)
JPS5866369U (ja) 周波数特性測定装置
JPH02110895U (ja)
JPH0232128U (ja)
JPH01160598U (ja)
JPS62147078U (ja)
JPH01144871U (ja)
JPS59116834U (ja) 温度測定装置
JPS62176751U (ja)
JPH0374365U (ja)
JPS6421493U (ja)
Merhaut Impulse measurement of electrical and acoustic impedances.
JPS61140408U (ja)