GB1388429A - Gramophone switching devices - Google Patents
Gramophone switching devicesInfo
- Publication number
- GB1388429A GB1388429A GB3522672A GB3522672A GB1388429A GB 1388429 A GB1388429 A GB 1388429A GB 3522672 A GB3522672 A GB 3522672A GB 3522672 A GB3522672 A GB 3522672A GB 1388429 A GB1388429 A GB 1388429A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gramophone
- pick
- switch
- record
- output voltage
- 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
Abstract
1388429 End of record play detectors GERATEWERK LAHR GmbH 27 July 1972 [13 Aug 1971] 35226/72 Heading G5R [Also in Divisions G1 and H3] In an arrangement for detecting the end of record play in a gramophone, a signal transmitter 1, which supplies an output voltage proportional to the angular position of the gramophone pick-up arm, is coupled via switch 2, which is operated once per turntable revolution, to an evaluation circuit 4 (see Division H3), where it is compared with a stored value of the output voltage supplied during the previous operation of the switch. When the increase in voltage exceeds a set value, as when the pick-up enters the record run out groove, the evaluation circuit issues a signal to initiate auto-change or switch off of the gramophone. The signal transmitter can be photo-electrically operated (see Division G1), or can detect magnetically the pick-up arm movement.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712140750 DE2140750C3 (en) | 1971-08-13 | 1971-08-13 | Switching device for a record player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1388429A true GB1388429A (en) | 1975-03-26 |
Family
ID=5816733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3522672A Expired GB1388429A (en) | 1971-08-13 | 1972-07-27 | Gramophone switching devices |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4835802A (en) |
| CH (1) | CH556086A (en) |
| DE (1) | DE2140750C3 (en) |
| DK (1) | DK134125C (en) |
| FR (1) | FR2151872A5 (en) |
| GB (1) | GB1388429A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5329802U (en) * | 1976-08-06 | 1978-03-14 | ||
| JPS53119004A (en) * | 1977-03-26 | 1978-10-18 | Pioneer Electronic Corp | Record player |
| JPS5826104B2 (en) * | 1978-02-20 | 1983-05-31 | パイオニア株式会社 | Tone arm return position detection device |
| JPS62105382U (en) * | 1985-08-09 | 1987-07-04 | ||
| JPH04128578A (en) * | 1990-09-19 | 1992-04-30 | Toyo Eng Corp | Vacuum pump |
-
1971
- 1971-08-13 DE DE19712140750 patent/DE2140750C3/en not_active Expired
-
1972
- 1972-07-18 CH CH1074072A patent/CH556086A/en not_active IP Right Cessation
- 1972-07-27 GB GB3522672A patent/GB1388429A/en not_active Expired
- 1972-08-11 FR FR7229066A patent/FR2151872A5/fr not_active Expired
- 1972-08-14 JP JP8082372A patent/JPS4835802A/ja active Pending
- 1972-08-14 DK DK399872A patent/DK134125C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2140750B2 (en) | 1974-05-16 |
| DK134125B (en) | 1976-09-13 |
| FR2151872A5 (en) | 1973-04-20 |
| DK134125C (en) | 1977-02-14 |
| JPS4835802A (en) | 1973-05-26 |
| CH556086A (en) | 1974-11-15 |
| DE2140750A1 (en) | 1973-02-22 |
| DE2140750C3 (en) | 1975-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES368072A1 (en) | Tape recorder useful as an automated teaching apparatus | |
| ES439440A1 (en) | Cassette detection device for recording and/or playback apparatus | |
| GB1388429A (en) | Gramophone switching devices | |
| ES395345A1 (en) | Method and apparatus for detecting errors read from moving-magnetic-storage device with digital interface | |
| ES395344A1 (en) | Method and apparatus for amplitude sensing and data gating in a magnetic-storage device with digital interface | |
| JPS5764342A (en) | Optical system recorder and reproducer | |
| JPS5411708A (en) | Peak detecting system | |
| JPS5442612A (en) | Electronic rotor | |
| JPS5752390A (en) | Rotational pulse detecting circuit for reel motor | |
| JPS5234770A (en) | Detection circuit of multiple input maximum value | |
| JPS5666A (en) | Control unit for turntable | |
| FR2271549A1 (en) | Digital output weighbridge - has beam, load-carrier, and motor driven cursor with output disc encoder | |
| KR940000494Y1 (en) | Rotation detecting apparatus for reel disk of vtr | |
| JPS5280116A (en) | Magnetic card device | |
| JPS5243410A (en) | Magnetic disk unit | |
| JPS5228361A (en) | Physical quantity detecting circuit | |
| JPS573245A (en) | Magnetic recording and reproducing device | |
| JPS5222932A (en) | Thermal recorder | |
| JPS5667A (en) | Control circuit for turntable | |
| JPS554736A (en) | Disc player | |
| JPS51129273A (en) | Phase difference auto-measuring device using a single forward set ampl ification circuit by signal switching to be measured | |
| JPS52113709A (en) | Track switching control circuit | |
| JPS6466870A (en) | Device for detecting digital peak level position | |
| JPS5243412A (en) | Recording state detection method of video-head | |
| JPS57181464A (en) | Intermusic detector for record player |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |