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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an embodiment of the
present invention, and FIG. 2 is a plan view of one side of an electrode. DESCRIPTION OF
SYMBOLS 1 ... front electrode, 2 ... back electrode, 3, 4.6 ... spacer, 5 ... diaphragm, T ... acoustic
filter, 8 ... air chamber. O One two two 1.15-
[Detailed description of the invention] This square relates to an electrostatic transformer, which
can be made inexpensive and easy to change characteristics as desired, and in particular, as a
special advantage as an electrostatic speaker. There is. An embodiment of the following seven
drawings will be described. In the middle of the flat root-like front military 1 and rear electrode 2
having a large number of acoustic passage holes, the diaphragm 5 is held between the spacers 5
and 4 so as to form an electrode The acoustic filter 7 is connected to the entire outer surface of
the back electrode 2 via the spacer 6 of a suitable thickness to form the air chamber 8, and the
whole is fixed with the holt 9. 'The electrodes 1 and 2 are made of synthetic resin, and the
surface opposite to the diaphragm 5 is plated after suitably masking the periphery a as shown in
FIG. Use the treated one. As described above, the dragon part becomes lightweight, and by the
combination of the air chamber 8 and the acoustic filter 7. The sound box can be changed to get
h "+ a characteristic of desire. Although the above description is applied to an electrostatic
speaker, the present invention can also be applied to other transducers.
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