You wont see any difference key down. The difference, if any, will be
regulation and a slightly higher PEP on SSB.
If the transformer isnt heating excessively you are OK.
Its the amps with the barely adequate transformer that are in danger.
There is also a much higher power-on current so consider a step-start and
the stored energy in case of a tube arc/short is much larger and there Id
suggest a minimum of a 25 Ohm 50W glitch resistor and preferably 50 Ohms.
Carl
KM1H
----- Original Message -----
From: "Dwayne" <863@telus.net>
To: <amps@contesting.com>
Sent: Friday, April 13, 2012 5:56 PM
Subject: [Amps] caps..
> Hi Name is Dwayne (ve6qx)
> I recently changed out the electrolitic caps in my 3800 volt power supply.
> from 10 210 Mfd at 450 volts to 10 530Mfd at 450 volts per cap. I did
> this
> thinking that I would lessen the decay of the voltage when the amp is
> keyed.. The power supply is a voltage doubler..
> But I'am thinking perhaps all I did was provide to much capacitance
> for
> the capability of the transformer.. Perhaps this is more stress on the
> trnasformer.??? All I have noticed is a longer decay time for the
> voltage
> to return to zero when shutting down the amp.(makes sence,more
> capacitance)
> Other then that it works fine.. Thanks and maybe someone has a
> explanation of what's going on cause of this change in cap..
> Dwayne. Ve6qx
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