GB1107489A - Improvements in or relating to frequency conversion circuits - Google Patents
Improvements in or relating to frequency conversion circuitsInfo
- Publication number
- GB1107489A GB1107489A GB2142367A GB2142367A GB1107489A GB 1107489 A GB1107489 A GB 1107489A GB 2142367 A GB2142367 A GB 2142367A GB 2142367 A GB2142367 A GB 2142367A GB 1107489 A GB1107489 A GB 1107489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- frequency conversion
- conversion circuits
- signal
- base
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
- Logic Circuits (AREA)
Abstract
1,107,489. Transistor mixer circuits. MULLARD Ltd. 9 May, 1967, No. 21423/67. Heading H3T. A frequency changer comprises a long-tailedpair Tr1, Tr2 and an oscillator Tr3 in which the oscillator signal is applied to the base of at least one of the transistors Tr1, Tr2 and the R.F. signal is applied to the base of the other, e.g. from a tuned circuit C1, T1, and in which the I.F. output is derived from a tuned circuit C3, L1 in one of the collector circuits. As described, the oscillator signal is applied to both transistors Tr1, Tr2 via capacitors C2, C4. An A.G.C. signal may also be applied to the base of transistor Tr1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2142367A GB1107489A (en) | 1967-05-09 | 1967-05-09 | Improvements in or relating to frequency conversion circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2142367A GB1107489A (en) | 1967-05-09 | 1967-05-09 | Improvements in or relating to frequency conversion circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1107489A true GB1107489A (en) | 1968-03-27 |
Family
ID=10162702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2142367A Expired GB1107489A (en) | 1967-05-09 | 1967-05-09 | Improvements in or relating to frequency conversion circuits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1107489A (en) |
-
1967
- 1967-05-09 GB GB2142367A patent/GB1107489A/en not_active Expired
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