DE242465C - - Google Patents
Info
- Publication number
- DE242465C DE242465C DENDAT242465D DE242465DA DE242465C DE 242465 C DE242465 C DE 242465C DE NDAT242465 D DENDAT242465 D DE NDAT242465D DE 242465D A DE242465D A DE 242465DA DE 242465 C DE242465 C DE 242465C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- microphone
- metal
- soldering
- bridge
- 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.)
- Active
Links
- 239000012528 membrane Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000005476 soldering Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/021—Microphones with granular resistance material
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE242465C true DE242465C (OSRAM) |
Family
ID=501667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT242465D Active DE242465C (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE242465C (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1166268B (de) * | 1961-07-27 | 1964-03-26 | Krone Kg | Membran fuer Kohlemikrofone |
-
0
- DE DENDAT242465D patent/DE242465C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1166268B (de) * | 1961-07-27 | 1964-03-26 | Krone Kg | Membran fuer Kohlemikrofone |
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