GB1107489A - Improvements in or relating to frequency conversion circuits - Google Patents

Improvements in or relating to frequency conversion circuits

Info

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
Application number
GB2142367A
Inventor
John Stuart Malcolm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Components Ltd
Original Assignee
Mullard Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mullard Ltd filed Critical Mullard Ltd
Priority to GB2142367A priority Critical patent/GB1107489A/en
Publication of GB1107489A publication Critical patent/GB1107489A/en
Expired legal-status Critical Current

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.
GB2142367A 1967-05-09 1967-05-09 Improvements in or relating to frequency conversion circuits Expired GB1107489A (en)

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)

Similar Documents

Publication Publication Date Title
GB1093429A (en) Non-contacting displacement gauge
GB990435A (en) Speech synthesis system
GB1349445A (en) Gate circuits
GB1363970A (en) Multiple phase clock generator circuit with control circuit
GB1124266A (en) Modular integrated electronics radar
GB948474A (en) Improvements relating to d.c. to a.c. inverter circuits
GB1100751A (en) Improvements in or relating to tuning arrangements
GB1169472A (en) Oscillator Circuit.
GB1168963A (en) Frequency Converter Circuit
GB1302952A (en)
GB1107489A (en) Improvements in or relating to frequency conversion circuits
GB1257722A (en)
GB1140667A (en) Electronic circuit
GB1082905A (en) Improvements in or relating to semi-conductor diodes
GB1107488A (en) Improvements in or relating to frequency conversion circuits
GB1028650A (en) Improvements relating to threshold logic circuits
GB1516722A (en) Microwave integrated circuits
GB1100619A (en) Improvements in frequency discriminators
GB1077877A (en) Improvements in crystal oscillators
ES315068A1 (en) Improvements in electronic mixer and frequency changer circuits
GB1252063A (en) Dc-dc converter for a photoflash
GB1093913A (en) Improvements in or relating to harmonic generators
GB1152278A (en) Improvements in or relating to Mixers and Frequency Changers
GB1020870A (en) Improvements in or relating to pulse separating circuit arrangements
GB868995A (en) Improvements in and relating to frequency-changing circuits