[Elecraft] Ameritron 240V inrush limiter: any benefit on a KPA500?

[Victor Rosenthal]

Well, I don't totally agree. The power switch in some of those amps like 
the SB220 or TL922 is highly stressed. There is a big "thump" sometimes 
when they are turned on at the right point in the cycle. I also believe 
that slower application of filament voltage to a 3-500z or similar 
lengthens the life of the filament.
But this is about KPA500s, so I suppose the answer is 'no'.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/

On 18/01/2020 21:13, Bob McGraw K4TAX wrote:
 > "Amplifier" as in all inclusive.  The models I referenced all have 
internal power supplies, with exception of 2 models.    The design of 
the transformers in these amplifiers are such that inrush current does 
not exceed maximum magnetization current.
 >
 > 73
 >
 > Bob, K4TAX
 >