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The actual connectors I need to remove are on the circuit board so I need to be careful not to cause any damage by putting too much pressure on the connectors as the leads are fron the mains tranny. I'm trying to change the amp from 230v to 240v byt don't look like it's going to happen anytime soon
+10% = 253v
-6% = c. 217v
I am not techy enough to know the science behind what are considered optimum operating conditions but I assume they do exist and when someone such as ICBM say's 240v is ideal.... I don't fancy any failures of any sort if they can be avoided
Improvised and used a dental probe that I bent with pliers so it was right shape to do the Job
https://i.imgur.com/pewLN5r.jpg
https://i.imgur.com/qWwW7tU.jpg
It's a worse problem with valve amps than any other type of equipment commonly used now, because they're almost unique in stepping *up* the incoming mains voltage, rather than down. (A valve amp typically operates at 400-500VDC.) The power dissipation of components is related to the square of the voltage, so makes more of a difference when the voltages are higher than when they're lower.
Some voltages are referenced to a fixed lower voltage which is independent of the supply, too - the usual example is low-voltage rails derived from higher ones using Zener diodes and resistors - often used for low-voltage supplies for channel switching, reverb etc. Because the lower voltage doesn't also rise, the power dissipation in the resistor then increases disproportionately.
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"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein