The new "My Ref" Rev C thread

[ClaveFremen]

Originally Posted by mx2

When I turned it on, I heard a pop and saw sparks. It seems like I blew DR1 and DR2. Any theories for what happened? Can it be saved?
...
Do you think the heatsink could have caused DR1 and DR2 to blow on the first channel?

Sorry for your problem...

I suggest you to post the question to this more specific thread:

MyRefC build guide

BTW

Is your LM3386 the TF insulated or the T uninsulated?

If it's the T version:

• did you use the insulator and washer between the LM3886 and the heatsink?
• Is your heatsink 'floating' or is it grounded?

Don't worry anyway, it can be saved but probably you'll have to replace the LM3886, LM318 and rectifiers.

[mx2]

Originally Posted by ClaveFremen

Sorry for your problem...

I suggest you to post the question to this more specific thread:

MyRefC build guide

BTW

Is your LM3386 the TF insulated or the T uninsulated?

If it's the T version:

• did you use the insulator and washer between the LM3886 and the heatsink?
• Is your heatsink 'floating' or is it grounded?

Don't worry anyway, it can be saved but probably you'll have to replace the LM3886, LM318 and rectifiers.

Thanks for the reply.

Its the insulated version. The other channel just blew. DR3 and DR4 this time
It happened right when I plug the power cord in. (I didn't use a power switch.)

I will make a post in the other thread as you suggest.

[ClaveFremen]

Originally Posted by mx2

Thanks for the reply.

You're welcome

Originally Posted by mx2

Its the insulated version. The other channel just blew. DR3 and DR4 this time
It happened when I plug the power cord in. (I didn't use a power switch.)

Then the heatsink it's not part of the problem

Originally Posted by mx2

I will make a post in the other thread as you suggest.

Perfect, I'll try to help you there.

[AndrewT]

Mx2,
build up and use the bulb tester.

[PJN]

Has anyone here compared the RevC to the Pass labs F5 ? If so I'd ike to hear your opinions. I already have two revC's, but am looking for another project to build and was wondering if the F5 would result in a performance upgrade.

Thanks,

PJN

[troystg]

Originally Posted by AndrewT

Mx2,
build up and use the bulb tester.

[udailey]

PJN,
I like the MyRefC a lot, but its not going to compete with the F5.

[PJN]

Thanks Uriah, that's what I was looking for.

[bcmbob]

OK Uriah - you knew it was comming Can you give a bit more info about the comparison between the MyRef-C and the F5?

[soongsc]

Originally Posted by PJN

Has anyone here compared the RevC to the Pass labs F5 ? If so I'd ike to hear your opinions. I already have two revC's, but am looking for another project to build and was wondering if the F5 would result in a performance upgrade.

Thanks,

PJN

Which BOM are you using?

The simpler a design is, the more components are going to be critical on performance with the power supply considered as part of the circuit down to the transformer. I have no doubt that the F5 will need the exact components to get the exact performance.