QUOTE (john11 @ Jan 8 2013, 19:34) <{POST_SNAPBACK}>
Hi And thanks for reading this post.
The ac output on my quad 405-2 amplifier's transformer is 71 volts but keeps going up and down by approximately 0.1- 0.3 volts everytime i measure it. Is this normal and is this the correct voltage. It is quite and old transformer from the 70's and i want to connect some new quad amp boards to it but am not sure if the output voltage is correct or if anything can be gained by exchanging for a new toroid/audio transformer.
Many thanks in advance. John.
The ac output on my quad 405-2 amplifier's transformer is 71 volts but keeps going up and down by approximately 0.1- 0.3 volts everytime i measure it. Is this normal and is this the correct voltage. It is quite and old transformer from the 70's and i want to connect some new quad amp boards to it but am not sure if the output voltage is correct or if anything can be gained by exchanging for a new toroid/audio transformer.
Many thanks in advance. John.
Do you think the line Voltage is a constant? It wobbles all over the place. If you try your test with a brand new first time plugged in unit you'll find the same thing. If the line Voltage WAS constant, why would we need regulators? - And nearly every solid state gadget you own has regulators - LOTS of them. Power supply regulators are an art and science of their own.
G²