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Building a symmetrical psu B1 buffer
Building a symmetrical psu B1 buffer
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Old 20th June 2010, 05:16 PM   #1541
udailey is offline udailey  United States
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Building a symmetrical psu B1 buffer
Probably means your preamp trafo
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Old 20th June 2010, 05:22 PM   #1542
wushuliu is offline wushuliu  United States
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Quote:
Originally Posted by udailey View Post
Probably means your preamp trafo
Ah, got it. Thanks for the terminal block recommendation.
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Old 20th June 2010, 05:29 PM   #1543
regiregi22 is offline regiregi22  Europe
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Quote:
Originally Posted by udailey View Post
Hi James.
No, I meant to wire everything to the terminal block. One of those big plastic things with about 6-8 screws in it.
Then attach the terminal block (plastic) to the chassis.
Uriah
Yeah, he hasn't said anything about grounding. He is supposing that you will tie it to the metal chassis.

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Old 20th June 2010, 07:57 PM   #1544
wushuliu is offline wushuliu  United States
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Originally Posted by regiregi22 View Post
Yeah, he hasn't said anything about grounding. He is supposing that you will tie it to the metal chassis.

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Regi
ok, so that I'm on the same page. Line and Neutral go to terminal block and earth grounded to chassis, or are all three tied to the terminal bloc?...
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Old 20th June 2010, 08:11 PM   #1545
udailey is offline udailey  United States
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Building a symmetrical psu B1 buffer
Either way. You can create a star ground on the terminal block if you like or you can do that on the chassis but you should at some point ground the chassis in case it gets shorted to a live line which would then potentially electrocute you if the chassis were not grounded.
Uriah
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Old 20th June 2010, 08:45 PM   #1546
wushuliu is offline wushuliu  United States
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Quote:
Originally Posted by udailey View Post
Either way. You can create a star ground on the terminal block if you like or you can do that on the chassis but you should at some point ground the chassis in case it gets shorted to a live line which would then potentially electrocute you if the chassis were not grounded.
Uriah
gotcha. thanks
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Old 20th June 2010, 08:46 PM   #1547
AndrewT is offline AndrewT  Scotland
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a "control" transformer could be one that only powers the ON OFF relays, power to protection and delay circuits, illumination, in fact anything that is not direct audio amplifier.
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Old 20th June 2010, 08:48 PM   #1548
AndrewT is offline AndrewT  Scotland
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Originally Posted by wushuliu View Post
ok, so that I'm on the same page. Line and Neutral go to terminal block and earth grounded to chassis, or are all three tied to the terminal bloc?...
Live and Neutral to your screw fixing and onward.
Protective Earth wire direct to chassis Safety Earth.
Then you can connect anywhere on the chassis to the Main Audio Ground.
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Old 20th June 2010, 09:20 PM   #1549
wushuliu is offline wushuliu  United States
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Originally Posted by AndrewT View Post
Live and Neutral to your screw fixing and onward.
Protective Earth wire direct to chassis Safety Earth.
Then you can connect anywhere on the chassis to the Main Audio Ground.
So I've powered up the DCB1. I'm getting -5.3mv right channel, .6mv left channel. I take it that's something's probably not right...

and do I jumper BOTH 600Rs or just the one that says Note? (I have a 12v relay)

Last edited by wushuliu; 20th June 2010 at 09:41 PM.
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Old 20th June 2010, 09:51 PM   #1550
Salas is offline Salas  Greece
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Building a symmetrical psu B1 buffer
They are in parallel. One jumper's all right.
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