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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a
condenser headphone storage case according to the present invention with a lid open, FIG. 2 is a
cross-sectional view thereof, and FIG. It is a figure which shows the example of a connection. 1 и и
и Case body, 2 и и и и и и и и и и и и и Condenser headphones, 8 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и ... 10 иииииии Jack for headphone. 49-C real opening 49-47619 (2)-50-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a case for housing
a head 15 phone (hereinafter referred to as a condenser headphone) having a condenser speaker.
Condenser headphones have better frequency characteristics than movable line volume
headphones. However, the input impedance of the condenser headphone is extremely high (1 +
▒ ▒, and the condenser ring is connected directly to the jack that should be connected to the
moving wire ring type headphone of the sound set 1). It is not possible to simulate 7 and
connected via an audio signal step-up transformer. This voice signal step-up transformer is
relatively bought (: yr, the shape was also large angle ?), this gold conden. It is practical to build
in headphones. Therefore, the conventional voice signal step-up transformer is housed. Used for
a dedicated adapter; Use an adapter like this to apply the brakes by adopting a chopped
condenser headphone. Also, the installation and use of the adapter will be bothered by the
removal and its observation place F9T. In this consideration, attach an audio signal step-up
transformer or the like to the storage case of the condenser headphone and use a dedicated
adapter f (<, condenser headphone t? +5 adopted [-easy to handle and easy to handle, i, i + Q]. C
? ? ? C Let's explain and explain the one-in-one drawing of the condenser headphone storage
case. lf 'indicates a storage case main body, which has a +21 transversal shape on the inside of
the cover 9, on which the condenser hera 1 dophone 2 is disposed. A light recess is formed along
the shape of the headphones 2 on the upper plate 1 a of the case body 1 so that the pair of main
bodies 3 and 4 of the headphones 2 and their connecting parts 5 sink respectively in half
consistency. One edge of the upper plate of the case body l; In this device lC, the audio signal
step-up transformer 8 is case main body 1rt (self-recommended, connection lead to the sound set
lead out from the main body l to the outside, headphone and speaker switch 10 and headphone).
The connection jacks 11 are attached to the case body 1 respectively. For example, the step-up
transformer 8 is attached to the back surface of the base 12 [12], and the switching switch 10 is
arranged so that the connector comes out on the front surface of the substrate 12 and the
insertion port side of the jack 11 comes out on the front surface. Each is attached to the
substrate 12. On the other hand, an opening is provided in the middle of the main bodies 3 and 4
of the headphones 2 of the upper plate la of the main body, and the substrate 12 is brazed to the
upper plate IFI so as to scoop this opening.
An indicator lamp 132 (31 is also assigned to the substrate 12 to indicate the use state of the
personal phone, if necessary. ?????????? In the case where the voltage for the
polarization electrode of the relay 2 is obtained from a commercial power source, the tandem
cord 14 is derived from the main body l. The step-up transformer 8 and the switching switch 10
are connected as shown in FIG. That is, this condan. The headphone 2 is connected, and the
output side of the output amplifier 16 of the set 15 is connected to the built-in speaker 18
through the normally closed switch 17. The output ll of the amplifier 16 is connected to the
movable contact m of the switching switch lO through one lead 9a of the lead # 9, and one fixed
contact a of the 1 ░ ? switch lO is lead 9 9 Are connected to the speaker 18. The other end J of
the switch 10) is fixed to the low voltage side of the step-up transformer 8 and the high voltage
side of the transformer 8 is connected to the jack 11 so as to be a phrase. The headphone 2 is
connected 4 to the transformer 8 by inserting a plug (not shown) of the 15-inch phone 2 into the
jack 11. f ?? ? @ 9 9 (1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '1' 1 '? ?
? ? ? ? ?,. +4) The operation to switch to 2 is performed. The step-up transformer 8 is built
in the case itself in which the condenser headphone 2 is accommodated by the above-described
capacitor headphone storage case according to the invention. Therefore, the special purpose
adapter is not used in particular. Be connected to Therefore, there is no need to consider where
to place the dedicated adapter, and the waiting operation is simple, easy to carry, and there is no
risk that one of the headphones and the adapter will be lost. The main body l, lid ,. 7 is made by
hollow molding of a synthetic resin material at once and inexpensively. ??? The step-up
transformer 8 or the like is also easily mounted on one substrate 12 ((the mounting of the stepup transformer 8 or the like onto the main body 1 is also easy.
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