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Old 23rd December 2012, 07:08 PM   #621
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Quote:
Originally Posted by deadhead View Post
Whilst on the subject of swaps...

In my GB bag i did not receive any 147K resistors but I did get 4x 2k resistors that I don't think are anywhere on the boards. I also received 16x 150k when I only needed 4x.

Did anyone get more 147k than they needed and could they swap with me or if you don't need any swaps could you send me their spare 147's please?

Does anyone have any spare Dale 147k that I could buy from them please.
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Old 26th December 2012, 05:21 PM   #622
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Hello,

I would be very happy if anyone of you finds the time to check the values of Joachims schematic or can verify them.

Can you try to simulate JG's circuit?

My testing transformators are only nominal 2x24 volts but I think there is something wrong?

I do not want to burn my Paradise,

Thank you very much,
Christoph
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Old 26th December 2012, 06:56 PM   #623
RCruz is offline RCruz  Switzerland
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Quote:
Originally Posted by brozatus View Post
I also have plus/minus 81,5 V AC between plus/minus vdc and ground and
163 V AC between plus vdc and minus vdc
Please explain.

Do you mean you measured AC volts after the rectifiers ?

The circuit you are using is very good... there is no way you can get AC after the rectifiers.

You posted you measured 27 AC volts before the rectifiers... that would give you 37VDC after the rectifiers.... seems ok but as the paradise runs with 18VDC, the shutnts will need to "burn" 20VDC n heat.... maybe you should "loose" some volts with an RC circuit.
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Old 26th December 2012, 08:03 PM   #624
studeb is offline studeb  United States
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Quote:
Originally Posted by brozatus View Post
Hello Joachim,

I have built a nice necklace from 8 resistors and it adds up to 540 R and
put it in parallel to the outputs plus vdc and ground.

Now I measure between plus vdc and ground 29,7 V DC and 64,3 V AC.

Regards,
Christoph
can you post a schematic, and show where you are measuring AC after the recitifiers?
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Old 26th December 2012, 09:03 PM   #625
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All good from my end now all shunts running happily.
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hoping to pick up some things.
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Old 26th December 2012, 09:19 PM   #626
Marra is online now Marra  United Kingdom
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Good to hear.
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Old 26th December 2012, 09:29 PM   #627
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@Rcruz,

yes, as I said, I measure AC volts after the rectifiers.

see the schematic:

I have about 81 ac between plus vdc and ground, 163 v ac between plus vdc and minus vdc.

@studeb,

please look at the schematic, it is exactly as I explained it.

Thanks a lot,
Christoph
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Old 26th December 2012, 09:46 PM   #628
studeb is offline studeb  United States
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So between the red and black, you have AC?
Between the black and blue you have AC?

Can you post a picture of your pre-reg?

Is the black gound tied to anything, or is it floating?
Attached Images
File Type: png Pre-reg.PNG (24.6 KB, 237 views)
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Old 27th December 2012, 06:21 AM   #629
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Hello Studeb,

thanks for your helping!

Yes, I have ~81v ac between red and black, the same between black and blue.
After putting 540R to red and black I measure ~64v ac in parallel.

"Is the black gound tied to anything, or is it floating"
Sorry, my english is too bad, I'm not sure about "floating",
the black ground is connected like is is in the schematic.

Regards,
Christoph
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Old 27th December 2012, 06:56 AM   #630
amsoque is offline amsoque  Romania
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Hi all.

I think I'm a little late to the party. Is it possible to get one of these preamps?

Thanks,

Emil
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