NL33567C - - Google Patents
Info
- Publication number
- NL33567C NL33567C NL33567DA NL33567C NL 33567 C NL33567 C NL 33567C NL 33567D A NL33567D A NL 33567DA NL 33567 C NL33567 C NL 33567C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
- H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
- H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
- H03G9/10—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for tone control and volume expansion or compression
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33567XA | 1930-04-29 | 1930-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL33567C true NL33567C (en) | 1934-04-16 |
Family
ID=31989863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL33567D NL33567C (en) | 1930-04-29 | 1931-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL33567C (en) |
-
1931
- 1931-04-22 NL NL33567D patent/NL33567C/xx active