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Old 20th Dec 2004, 6:11 am   #1
Join Date: Apr 2003
Location: Johannesburg, South Africa
Posts: 17
Default Battery eliminators

With solid state power supplies, used with portable valve radios, the HT and LT are applied to the circuitry virtually immediately, as opposed to a gradual increase in HT as is the case with a valve power supply: can there be any resulting damage to the filaments of the valves?
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