[Drake] AC4 ripple

[Steve]

I have just finished installing the Heathkit Shop AC4R replacement power 
supply board in my AC4 power supply.

Was just wondering if anyone has measured ripple on the HV outputs?

Here's what I'm seeing: keydown, about 250mA plate current, using a 
Fluke 8060A DMM and Tektronix 2235 scope:

650 volt output: 659VDC, 20 volt peak-to-peak positive going sawtooth, 60Hz

250 volt output: 249VDC, 1.75 volt peak-to-peak positive half sine waves 
adjacent to each other, 120Hz

The measurements of those outputs with the old capacitors were about 25 
volts p-p on both of them, so I've certainly helped the 250VDC output a lot.

But what about the 650VDC output? Does ripple in the 20 volt p-p range 
sound right?

Thanks.

Steve K8JQ