GB885014A - Improvements in or relating to mixer circuit arrangements - Google Patents
Improvements in or relating to mixer circuit arrangementsInfo
- Publication number
- GB885014A GB885014A GB1037560A GB1037560A GB885014A GB 885014 A GB885014 A GB 885014A GB 1037560 A GB1037560 A GB 1037560A GB 1037560 A GB1037560 A GB 1037560A GB 885014 A GB885014 A GB 885014A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- impedance
- source
- frequency
- sources
- 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
- 230000035559 beat frequency Effects 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
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)
- Superheterodyne Receivers (AREA)
Abstract
885,014. Transistor frequency-changing circuits. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 29, 1960 [March 23, 1960], No. 10375/60. Class 40(6). An arrangement for mixing high-frequency voltage waves from two low-impedance sources, comprises a first transistor 11 to the base of which are applied waves from the one source through an impedance, comprising resistor 9 and blocking condenser 7, which is high relative to the impedance of that source. The base circuit of the transistor 11 is completed by a high-frequency choke 13. The second source is fed in an exactly similar manner to a second transistor 12. The transistors 11, 12 are connected as emitter followers, being resistance-capacity coupled to a pair of further transistors 21, 22 respectively which have their emitters coupled together over condenser 23. The collectors are joined together to a tap on tuned circuit 31, across which the beat frequency appears. The arrangement provides a high degree of isolation between the two sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1037560A GB885014A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to mixer circuit arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1037560A GB885014A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to mixer circuit arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB885014A true GB885014A (en) | 1961-12-20 |
Family
ID=9966690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1037560A Expired GB885014A (en) | 1960-03-23 | 1960-03-23 | Improvements in or relating to mixer circuit arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB885014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222128B (en) * | 1963-11-05 | 1966-08-04 | Philips Patentverwaltung | Multiplicative mix with transistors |
-
1960
- 1960-03-23 GB GB1037560A patent/GB885014A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222128B (en) * | 1963-11-05 | 1966-08-04 | Philips Patentverwaltung | Multiplicative mix with transistors |
| US3302118A (en) * | 1963-11-05 | 1967-01-31 | Philips Corp | Multiplicative mixing with transistors |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1074577A (en) | Signal translating circuits using field-effect transistors | |
| GB592415A (en) | Improvements in or relating to frequency discriminator circuits | |
| GB713674A (en) | Improvements in frequency converters | |
| GB1098979A (en) | Improvements in or relating to high frequency transistor amplifiers | |
| GB885014A (en) | Improvements in or relating to mixer circuit arrangements | |
| GB785538A (en) | Improvements in or relating to transistor circuits | |
| GB604854A (en) | Improvements in and relating to mixing circuits such as are used in superheterodyne receivers | |
| GB1109637A (en) | Improvements in or relating to transistor mixing circuit arrangements | |
| GB805323A (en) | Channel selectors for signal-seeking receivers | |
| GB625908A (en) | Multi-range oscillator system | |
| GB1129879A (en) | Mixer circuits | |
| GB1229366A (en) | ||
| GB783238A (en) | Improvements in or relating to transistor mixing circuit-arrangements | |
| GB557083A (en) | Improvements in and relating to means for reducing noise in radio receivers | |
| GB1114204A (en) | Improvements in or relating to tuning arrangements | |
| GB899096A (en) | Improvements in power conserving mixer and oscillator | |
| GB552486A (en) | Improvements in or relating to mixing circuits for use in superheterodyne receivers | |
| GB1305698A (en) | ||
| GB1008540A (en) | Improvements in or relating to mixing circuit arrangements for high-frequency signals | |
| SE301501B (en) | ||
| GB662667A (en) | Superregenerative superheterodyne wave-signal receiver | |
| ES315068A1 (en) | Improvements in electronic mixer and frequency changer circuits | |
| GB754156A (en) | Electric circuits employing transistors for the generation of frequency modulated oscillations | |
| GB897561A (en) | Improvements in or relating to receiver circuit arrangements | |
| GB560880A (en) | Improvements in superheterodyne receivers for telegraphy and telephony |