GB582130A - Improvements in electric frequency changing circuits - Google Patents

Improvements in electric frequency changing circuits

Info

Publication number
GB582130A
GB582130A GB1014241A GB1014241A GB582130A GB 582130 A GB582130 A GB 582130A GB 1014241 A GB1014241 A GB 1014241A GB 1014241 A GB1014241 A GB 1014241A GB 582130 A GB582130 A GB 582130A
Authority
GB
United Kingdom
Prior art keywords
valve
reactor
amplifier
tuned
frequency changing
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
GB1014241A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB1014241A priority Critical patent/GB582130A/en
Publication of GB582130A publication Critical patent/GB582130A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/32—Automatic scanning over a band of frequencies with simultaneous display of received frequencies, e.g. panoramic receivers

Abstract

582,130. Valve circuits for wireless reception. SCOLES, G. J., MILLER, C. W., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Sept. 8, 1941, No. 10142. [Class 40 (v)] In a frequency changer in which the tuned circuit of the local oscillator is associated with a reactor valve for varying its tuning, an amplifier valve, preferably having a flatly tuned anode circuit is interposed between the local oscillator and the input to the frequencychanging stage. The Figure shows oscillator and reactor valves 9, 1 associated with a tuned circuit 8 and an amplifier 11 which may be of the variable mu type and feeding via terminal 13 the grid of the mixer valve. The arrangement may constitute the reactor device in a " panoramic " radio receiver as described in Specification 582,125.
GB1014241A 1941-09-08 1941-09-08 Improvements in electric frequency changing circuits Expired GB582130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1014241A GB582130A (en) 1941-09-08 1941-09-08 Improvements in electric frequency changing circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1014241A GB582130A (en) 1941-09-08 1941-09-08 Improvements in electric frequency changing circuits

Publications (1)

Publication Number Publication Date
GB582130A true GB582130A (en) 1946-11-06

Family

ID=9962277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1014241A Expired GB582130A (en) 1941-09-08 1941-09-08 Improvements in electric frequency changing circuits

Country Status (1)

Country Link
GB (1) GB582130A (en)

Similar Documents

Publication Publication Date Title
GB582130A (en) Improvements in electric frequency changing circuits
GB613681A (en) Improved circuit arrangements for the amplification or frequency-transformation of electrical oscillations
GB546248A (en) Improvements in or relating to electric tuning systems
GB617647A (en) Improvements in or relating to frequency-changing circuits
GB625908A (en) Multi-range oscillator system
GB557083A (en) Improvements in and relating to means for reducing noise in radio receivers
GB805323A (en) Channel selectors for signal-seeking receivers
GB796075A (en) Improvements in or relating to heterodyne mixing circuits
GB1129879A (en) Mixer circuits
GB698397A (en) Improvements in or relating to superheterodyne receiving circuits
GB450057A (en) Television radio transmitter
GB693902A (en) Improvements in or relating to superheterodyne radio receivers
GB890756A (en) Improvements in and relating to thermionic valve circuits
GB501529A (en) Improvements relating to superheterodyne receivers
GB608855A (en) Improvements in and relating to mixer circuits; for example for superheterodyne receivers
GB478754A (en) An improved means of obtaining preset reaction in a multi-range radio receiver
GB880366A (en) Improvements in and relating to electrical mixer circuits
GB347865A (en) Improvements in or relating to short wave radio receivers
GB502248A (en) Improvements in or relating to high frequency tuned circuits
GB758079A (en) Improvements in and relating to adjustable band width intermediate frequency amplifier for television sets
GB585570A (en) Improvements in or relating to thermionic frequency mixing arrangements
GB462460A (en) Improvements in receivers for radio communication
GB724926A (en) Improvements in or relating to variable tuning circuits
GB734710A (en) Improvements in or relating to high frequency converter circuits
GB394178A (en) Radio receiving arrangement