[hcraig244]

Ok…..cleaned the drawing up to include the actual transformer wiring details and took some measurements…..these are all with the turntable running and under normal load conditions…everything works fine though the voltage regulator gets hot…put a heat sink on it which helps quite a bit.

[hcraig244]

This is how the new power supply is tied in…

[hcraig244]

However the 6vdc fell off when the regulator went into high temp cut off……it was getting very hot!….few measurements revealed that I am getting 24v at the input to the voltage regulator instead of the 12v i was expecting, the output from the transformer is 12v to the 6v rectifier…..

[hcraig244]

This is the regulator 6vdc output under operating load

[hcraig244]

This is how it looks, I have the regulator connected on leads to allow measurments to be taken easily

[hcraig244]

timestamp is a bit of a challenge here……my replies are all jumbled up, however wired up the transformer and powered up….slowly with the variac and watched the output of the 6vdc regulator it came up nicely…..and as i wound up the variac the output started to fall back to 0vdc….like a capacitor charging up?

[hcraig244]

This is the data sheet for the voltage regulator…

[hcraig244]

just getting my head around the order of things here….I will try harder

[hcraig244]

This is the data sheet for the transformer….yellow and black connected together to provide the 24v supply across orange and red to the 24vdc rectifier, connecting red and black (12v) to the 6vdc rectifier…..sounds straightforward enough

[hcraig244]

230vac power cable and improvised fusebox connected up…..

[hcraig244]

The replacement toroidal is a good fit dimensionally…..will fit above the fusebox nicely…

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