JPH0132223Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tape recorder with a radio, and more particularly to a tape recorder with a radio that allows listening to the radio while continuing to play the tape.

A tape recorder with a radio is a tape recorder with a radio that allows you to listen to either the tape recorder or the radio, so when you are listening to the radio, the tape recorder is on, and vice versa, the radio is on. It is in the off state. For example, with a car stereo tape recorder with a radio, if you want to switch to the tape recorder while listening to the radio, you can automatically switch from the radio to the tape recorder by inserting a tape cassette into the tape recorder. Normally, the configuration is such that it can be switched to .

However, in this type of car stereo tape recorder with radio, when switching from the tape recorder to the radio, the tape cassette inserted into the tape recorder must be removed from the tape recorder by operating an eject button or the like. For this reason, when switching to the tape recorder after listening to the radio, the tape cassette must be reinserted into the tape recorder, resulting in disadvantages such as complicated and troublesome operating procedures.

The present invention eliminates the above-mentioned drawbacks of the conventional technology, and makes it possible to switch to the radio with a single switch operation while playing a tape, and in that case, attenuates the output of the tape recorder, thereby making the tape play sound like a radio. The structure allows simultaneous operation of the tape recorder and radio as long as it does not interfere with the sound.
Thereby, it is an object of the present invention to provide a tape recorder with a radio that allows switching from the tape recorder to the radio or vice versa with a single touch.

An embodiment of the present invention will be described below with reference to the drawings. The figure shows a schematic circuit diagram of an embodiment of the tape recorder with radio according to the present invention.

In the figure, 1 is a tape recorder with a radio, and a tape recorder 1T and a radio 1R are assembled together or separately. Reference numeral 2 denotes a changeover switch that is switched in connection with the operation of inserting and removing a tape cassette into the cassette insertion slot 3 of the tape recorder 1T.
The contact piece 2a is connected to either the tape recorder side contact 2t or the radio side contact 2r by the above operation. Therefore, insert the tape cassette into the cassette insertion slot 3.
The contact piece 2a connects to the tape recorder side contact 2t.
When the tape recorder 1T is connected to the power supply E via the changeover switch 2 and a switch 7 to be described later, the tape signal detected by the magnetic head 4 is supplied to the main amplifier 6 via the preamplifier 5.

When the tape cassette is ejected from the cassette insertion slot 3, the contact piece 2a of the changeover switch 2 is switched to the radio contact 2r, and the radio 1R is connected to the power source E. In addition, the main amplifier 6 is
Power supply E regardless of the connection status of changeover switch 2.
connected to.

Here, the switch 7 constitutes the main part of the present invention together with the volume attenuation circuit 8.
It is provided in the power supply line 9 of T. power line 9
Since the neutral contact 7c of the switch 7 connected to the switch 7 and the tape recorder side contact 7t are short-circuited, the tape recorder side contact 7t is always connected to the power supply line 9. On the other hand, the radio side contact 7r is connected to the neutral contact 7c via the contact piece 7a when the switch 7 is switched to the radio side.

The volume attenuation circuit 8 is constructed by connecting the collector of a transistor 10 whose emitter is grounded to the output side of the preamplifier 5, and connecting the base of the transistor 10 to the radio side contact 7r of the switch 7.

If you want to listen to Radio 1R while playing the tape cassette on Tape Recorder 1T,
Operate the switch 7 to switch and connect the radio side contact 7r to the neutral contact 7c. As a result, the tape recorder 1T remains connected to the power source E, and the radio 1R is connected to the power source E via the switch 7 and the changeover switch 2. At the same time, the transistor 10 in the volume attenuation circuit 8 becomes conductive, and the tape output of the preamplifier 5 is attenuated to a low volume that does not interfere with listening to the radio 1R.

Therefore, while the tape recorder 1T continues playing the tape, the user can listen to the radio 1R while suppressing the sound of the tape playing to a low level that does not interfere with the sound of the radio 1R. Therefore, unlike in the past, there is no need to remove the tape cassette from the tape recorder 1T before being able to listen to the radio 1R, and switching from the tape recorder 1T to the radio 1R can be done by simply operating the switch 7. It can be easily done.

As explained above, according to the tape recorder with a radio according to the present invention, in a tape recorder with a radio in which the power supply is switched from the radio to the tape recorder by inserting a tape cassette, the radio can be connected to the tape recorder's power supply by operating a switch. Since the output of the tape recorder is attenuated while being connected to the line, it is possible to switch to the radio with a single switch operation while playing the tape, thus eliminating the need to take out the tape cassette from the tape recorder as in the past. Also, tape playback can be continued while listening to radio audio, and switching from radio to tape can be quickly performed. Furthermore, when switching to the radio, the volume attenuation circuit works to output the tape sound at a level that does not interfere with the radio volume, so if the sound cuts out during a radio program, the tape sound can be heard. This has the effect of serving as a guide when reverting from the radio to tape.

[Brief explanation of the drawing]

The figure is a schematic circuit diagram of an embodiment of the tape recorder with radio according to the present invention. 1...Tape recorder with radio, 1T...Tape recorder, 1R...Radio, 7...Switch, 8...Volume attenuation circuit, 9...Power line, E
……power supply.

Claims (1)

[Scope of utility model registration request] In a tape recorder with a radio, in which the power source is switched from the radio to the tape recorder by inserting a tape cassette, the switch is provided in the power line of the tape recorder and connects the radio to the power line by external operation; A tape recorder with a radio, comprising a volume attenuation circuit that is activated by operating a switch and attenuates the output of the tape recorder to a low volume that does not interfere with the sound of the radio.