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

[Fred Jensen]

10 KW homebrew FM broadcast TX [not kidding -- KPFK 90.7 Los Angeles in 
the late 50's, 4 4-1000A's* in parallel driven by a 1 KW stage] had a 
step-start using mechanical time-delay relays.**  It limited the inrush 
current to the filter capacitors of the 5.5 KV plate power supply.  It 
was part of the power supply in the back room, not the PA.

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

* I do *not* recommend 4 ea 4-1000A's in parallel at 90.7 MHz. Things 
got very hot.

** Integrated circuits and microprocessors has not been invented then.  
Actually, the transistor barely had been.

On 1/18/2020 10:55 AM, Roger wrote:
> NO amplifier needs inrush protection - it is the POWERSUPPLY that needs it
> no matter how it is implemented.
> So the answer is not an easy "NO" or "YES" but a definite "it depends"!
>
> Roger, DL5RBW
>
>