Page 11 Advertisement 1

Radio Record, Volume II, Issue 52, 12 July 1929, Page 11

BUEt LIKE A See Kow thevre bwilt ! BRIDGEI Only Cossor Screened Grid Valve $ na ve Integ-ocked Electrodes Shock 1 PROOF ! NOISE -PROOF X BREAK -PROOF 1 Ie Tbe double length 20 Around tbe . two Cossor filament famed for Stout grid supports is its colossal emisson Note wound tbe first 'grid , tbe seonite bridge bolding electrically welded af In the Coggor Screened Grid Valve all the inherent rigidly 17 position: swenty-fve points: weaknesses of valve design have been eliminated_ By meang of the wonderful new Cosgor gystem of congtruction-illustrated here_each element is rigidly gecured top_ aud bottom: Even under the hardest blow individual movement i9 impossible: The Cosbor Screened Grid Valve i8 rigid-_built like a Bridge: Noigeg in 8 valve are generally due to looge elemente: In the Coggor Screened Grid Velve the elements cannot become 3. Note tbe enortous 4' Finally, observe tbe looge because they are rigidly braced together and becauge Strengtb and tigidity of construction of tbe anode. every joint i9 scientifically welded: the screen: Bnilt on "four Actvallytwo rectangelar Even the heaviegt ghock cannot disturb the perfect alignment Stont capped by nickel plates @re used of the electrode8 in the Cogsor Screened Grid Valve: It io Gn and for greater l5i3b6i3 the most robust and the mogt dependable Screened Grid chored to seonite insulator eacb isdiagonally = Valve made in Great Britain: For apy Screened Grid Receiver chooge Cossor: Accept no gubatitute for there i3 no adequate gubstitute for the Cossor syelem of Interlocked Construction: Made in 3 Types for 2 4 and 6-voLt Receiuers wlth English or U: X Bases: Cossor Technical Data: Voia 1sodn- Screened Grid 200,u00 Redplifc2og" Fac- tor 200, Grld Bire 1,5 volto at mar. anode Volte: Price THE ONLY SCREENED GRId VALVE aithar {Pe 30/ WIth WIERLOSKEL (ONSTRHCTION Agents for Australia and New Zealand: New Zealand fiatributors 8 North Island Dletribatort {e~ LYALL; WILLIS & CO: LTD. G. HOWES & CO;, RADIO; LTD, BILLITHI HOUSE, LONDON (Eng ). 889 CUMRERLAND 8T,, DONEDIN. Commerce Bulidine, Anzac Avonuo Auehad Cossor 8 Screened