[Amps] Fw: Step Start on a 3KA Amp

[Tom W8JI]

>> Dick,
>>
>> I think the Emtrons are zero crossers.
>>
>> Pat Stein uses them in the Commander series, too.
>>
>> The amp never makes a thump when it's switched on,
>> not like the Alpha clone that makes the floor jump.
>>
>> Hal

Hal,

Unfortunately a zero crosser does not do anything for 
inrush. It is good for the switch, but that's all.

To limit inrush you have to add series resistance so current 
is limited over some time period.

73 Tom