Metal Panels
Short-circuiting T endencies METAL panels for wireless sets are gradually becoming. more and L ore popular, partly because of their mechanical strength and partly because of their appearances. The latter is a strong point a: their favour, since they retain their originel new appearance and cannot change colour as do some ekonite panels. When metal panels aré substituted-for those of the insulating type in sets designed for the latter, care must be taken to'see that no short circuits are occasioned. Variable condensers which have three fixing screws secured to end-plates connecting with the fixed vanes are unsuit able unless insulating busheS are use for each screw, otherwise the fixed plates: would be shorted through the panel to the spindle of the moving plates, thus preventing the condenser working. ..
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https://paperspast.natlib.govt.nz/periodicals/RADREC19291101.2.64
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Radio Record, Volume III, Issue 16, 1 November 1929, Page 30
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130Metal Panels Radio Record, Volume III, Issue 16, 1 November 1929, Page 30
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