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
GB1838561A
Inventor
Robert Barrass
Gordon Malcolm Edge
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.)
Pye Electronic Products Ltd
Original Assignee
Pye 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 Pye LtdfiledCriticalPye Ltd
Priority to GB1838561ApriorityCriticalpatent/GB942289A/en
Publication of GB942289ApublicationCriticalpatent/GB942289A/en
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
H03B29/00—Generation of noise currents and voltages
Landscapes
Ignition Installations For Internal Combustion Engines
(AREA)
Control Of Eletrric Generators
(AREA)
Abstract
942,289. Noise generators. PYE Ltd. May 18, 1962 [May 19, 1961], No. 18385/61. Heading H3B. A noise generator comprises a Zener diode D biased near its breakdown voltage by an adjustable potential divider R1, R2, R3, the noise voltage generated across the diode being applied to an output terminal by way of a condenser C and a transistor TR in common base connection.