GB938591A - Improvements in or relating to electric frequency changing arrangements - Google Patents

Improvements in or relating to electric frequency changing arrangements

Info

Publication number
GB938591A
GB938591A GB2463560A GB2463560A GB938591A GB 938591 A GB938591 A GB 938591A GB 2463560 A GB2463560 A GB 2463560A GB 2463560 A GB2463560 A GB 2463560A GB 938591 A GB938591 A GB 938591A
Authority
GB
United Kingdom
Prior art keywords
frequency
relating
frequency changing
electric frequency
changing arrangements
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
GB2463560A
Inventor
Alan David Berry
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2463560A priority Critical patent/GB938591A/en
Publication of GB938591A publication Critical patent/GB938591A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies

Landscapes

  • Superheterodyne Receivers (AREA)

Abstract

938,591. Transistor frequency changer circuits. GENERAL ELECTRIC CO. Ltd. July 7, 1961 [July 14, 1960], No. 24635/60. Class 40 (6). The invention relates to frequency changers of the type in which a frequency F at 5 is mixed in 1 with a frequency F/2 from 6 to produce output frequencies of 3F/2 and F/2 from filters 4 and 3, the F/2 output of 3 providing the input 6. According to the invention the mixer takes the general form shown in Fig. 2, the frequency F being applied at 11, the frequency F/2 at 13 and the output being derived from 17.
GB2463560A 1960-07-14 1960-07-14 Improvements in or relating to electric frequency changing arrangements Expired GB938591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2463560A GB938591A (en) 1960-07-14 1960-07-14 Improvements in or relating to electric frequency changing arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2463560A GB938591A (en) 1960-07-14 1960-07-14 Improvements in or relating to electric frequency changing arrangements

Publications (1)

Publication Number Publication Date
GB938591A true GB938591A (en) 1963-10-02

Family

ID=10214827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2463560A Expired GB938591A (en) 1960-07-14 1960-07-14 Improvements in or relating to electric frequency changing arrangements

Country Status (1)

Country Link
GB (1) GB938591A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239363A (en) * 1989-11-20 1991-06-26 Pioneer Electronic Corp Balanced mixer circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239363A (en) * 1989-11-20 1991-06-26 Pioneer Electronic Corp Balanced mixer circuit
US5140705A (en) * 1989-11-20 1992-08-18 Pioneer Electronic Corporation Center-tapped coil-based tank circuit for a balanced mixer circuit
GB2239363B (en) * 1989-11-20 1993-06-16 Pioneer Electronic Corp Balanced mixer circuit

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