A.C. Power Valves
froR those who cannot afford to make. a complete change-over from ordinary to A.C. valves, it is quite practicable to lighten the load on the accumulator by driving the filament of the output or power-valve direct from the mains. A step-down transformer is required to reduce the A.C. voltage to that taken by the valve, The valve filament terminals are connected directly across the secondary winding, which is preferably centre tapped to earth.
Permanent link to this item
Hononga pūmau ki tēnei tūemi
https://paperspast.natlib.govt.nz/periodicals/RADREC19320108.2.49
Bibliographic details
Ngā taipitopito pukapuka
Radio Record, Volume V, Issue 26, 8 January 1932, Page 15
Word count
Tapeke kupu
76A.C. Power Valves Radio Record, Volume V, Issue 26, 8 January 1932, Page 15
Using this item
Te whakamahi i tēnei tūemi
See our copyright guide for information on how you may use this title.