Hello, knowledgeble colleagues. I am replacing PS filter caps on an old tube
CW transmitter that I believe are (all) shot and responsible for the harsh AC
hash-n-hum. I'm not really trying to restore it; I just want to clean up the
signal to use it, so it's not important to me to try to conceal multiple caps
into the original paper holding combo can above the chassis.
There are some nonstandard values, however. Now, I know I can add the
capacitance sums by wiring in parallel to achieve my targeted uF requirements,
but can I use caps designated for higher V without consequence?
Can I substitute, e.g. a 450/30 and a 450/20 in parallel to replace a 400/50?
A 450/100 to replace a 400/100?
How 'bout a 450/8 to replace a 450/4? (Instead of bothering to put 2 in
series.)
As a general rule then, as long as I exceed Voltage and Capacitance values
called for in the schematic, am I ok?
Thanx in advance for your advice.