It is just that the cartridge should not be connected to ground so :
Red goes into +In , green goes into -In of one channel.
White goes into +In, blue goes into -In of the other channel.
Neither green, nor blue should be connected to ground.
Only the shield should be connected to ground. That is earth from the TT ( provided that green and blue are not connected to TT earth ) and audio ground.
Ground is just a reference here but does not cary an audio signal. That is the nature of balanced.
Red goes into +In , green goes into -In of one channel.
White goes into +In, blue goes into -In of the other channel.
Neither green, nor blue should be connected to ground.
Only the shield should be connected to ground. That is earth from the TT ( provided that green and blue are not connected to TT earth ) and audio ground.
Ground is just a reference here but does not cary an audio signal. That is the nature of balanced.
only with a lot of noise of LMs, do you have a specific regulator for this pre-pre?
Try a cap multiplier after the LMs like the Keantoken.
The Kentoken has quite big pass transistors that are not necessary here. BD139-140 will do.
Another quick fix is 100 Ohm resistors from the LMs and each polarity and channel, so 4 resistors in total.
Then locally 1000uF plus 1uF foil to ground.
The Kentoken has quite big pass transistors that are not necessary here. BD139-140 will do.
Another quick fix is 100 Ohm resistors from the LMs and each polarity and channel, so 4 resistors in total.
Then locally 1000uF plus 1uF foil to ground.
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Quick fix like attached pic?
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