JPS6324554Y2 - - Google Patents
Info
- Publication number
- JPS6324554Y2 JPS6324554Y2 JP13900280U JP13900280U JPS6324554Y2 JP S6324554 Y2 JPS6324554 Y2 JP S6324554Y2 JP 13900280 U JP13900280 U JP 13900280U JP 13900280 U JP13900280 U JP 13900280U JP S6324554 Y2 JPS6324554 Y2 JP S6324554Y2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- oscillation
- transistor
- terminal
- input terminal
- 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.)
- Expired
Links
- 230000010355 oscillation Effects 0.000 claims description 64
- 239000002131 composite material Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13900280U JPS6324554Y2 (fr) | 1980-09-30 | 1980-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13900280U JPS6324554Y2 (fr) | 1980-09-30 | 1980-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5765494U JPS5765494U (fr) | 1982-04-19 |
| JPS6324554Y2 true JPS6324554Y2 (fr) | 1988-07-05 |
Family
ID=29498994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13900280U Expired JPS6324554Y2 (fr) | 1980-09-30 | 1980-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324554Y2 (fr) |
-
1980
- 1980-09-30 JP JP13900280U patent/JPS6324554Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5765494U (fr) | 1982-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3493966A (en) | Electronic audible alarm devices having plural oscillators | |
| US2910688A (en) | Electronic horn | |
| US2910689A (en) | Transistor horn | |
| US8674817B1 (en) | Electronic sound level control in audible signaling devices | |
| US4001816A (en) | Electronic chime | |
| US4303908A (en) | Electronic sounder | |
| US3943507A (en) | Vehicle back-up alarm | |
| JPS62161199A (ja) | 震音発生装置 | |
| US3744022A (en) | Transit vehicle door signal apparatus | |
| JPS6324554Y2 (fr) | ||
| US4389638A (en) | I.C. Alarm signal generator | |
| US4287510A (en) | Electronic signal generator with periodically varying frequency | |
| US5398024A (en) | Signal annunciators | |
| US4179690A (en) | Two-tone audible warning circuits | |
| US6310540B1 (en) | Multiple signal audible oscillation generator | |
| US3603985A (en) | Siren-horn circuitry | |
| US4180808A (en) | Alarm circuit | |
| JPS5911119B2 (ja) | 電子チャイム | |
| JPS6012234Y2 (ja) | 発音装置 | |
| US3971016A (en) | Electronic chirper | |
| EP0239914A2 (fr) | Système à haut-parleur électronique ayant un son harmonieux avec plusieurs niveaux réglables de son | |
| JPS597786Y2 (ja) | 時計付ラジオ受信機 | |
| KR950001105Y1 (ko) | 차량용 방향 지시장치 | |
| KR100540980B1 (ko) | 경보기용 소인신호발생기 | |
| JPS6318080Y2 (fr) |