Paradise Builders

[RCruz]

Any volunteer to check this ? I am out of time. I am leaving for Krefeld over the weekend.
There is the AAA analog show. The Paradise is playing in Andrejs system. Also in the Fast Audio room the "Tanzmusik" Phono with tone control i designed with Sigurd Ruschkowski and Ward Maas. I also show a subwoofer for the Kiso speakers from Japan. My new JG1 preamp is playing in Wolf von Langas system and i just finished my entry level preamp. Its called " Das unbeschriebene Blatt ". I do not know how to translate this into english. It has MM,MC, Line inputs, Line Out, Phono Direct, Line high pass filtered and a Headphone Out. i will have lots to do and explain.

I am missing this one too.... 😡

Looking forward to Holgar´s photos

 

[Joachim Gerhard]

The Blank Page, i like that translation.
Yes, Krefeld is pretty cool for us analog aficionados.

 

[pdul]

Based on all those functions you described, it should be. Cand. Phono.

 

[FdW]

Based on all those functions you described, it should be. Cand. Phono.

Then I would propose 'Phony' instead of 'Phono' 🙂

 

[RCruz]

For example this one :Studio Mikrofonkabel - KLOTZ A.I.S. GmbH Onlineshop

Hi Joachim

Where can I buy this type of cable ?

 

[pdul]

😀

 

[Joachim Gerhard]

Actually the " Das unbeschriebene Blatt" looks like a small mixing board in DIN A4.
Klotz is a famous brand of professional cables. I buy it in a local musicians shop.

 

[RCruz]

Tabula rasa.... (the human brain is a blank slate that is only shaped by his life experiences.) In his case a non affected preamp desing maybe 🙂

 

[FdW]

Actually the " Das unbeschriebene Blatt" looks like a small mixing board in DIN A4.
Klotz is a famous brand of professional cables. I buy it in a local musicians shop.

Not this one? Steven Pinker - Das unbeschriebene Blatt

 

[pdul]

Any suggestions, to how i can turn my paradise oscillators into phonestages?😕
Input is ok.
The testpoints measure ok.
Powersupply working ok.
But output is hyper, it wanders arround from +100mv to -100mv as if it were slowly sampling a big sinus🙄
The same if i measure at ext riia, so i guess the buffer is ok too.
I have tried to half the value of the two resistors in the servo, with no changes at all.
I have connected 100k in series with 1nf to the output, and i can measure a lot of hyperdancing mv`s over the resistor, with the DMM set to ac🙂

 

[RCruz]

Do you have a load connected in the input ? If so what value ?

 

[pdul]

exactly the same problem with both boards, so at least theres consistancy😀

 

[pdul]

The input load is 10k as described, i have tried 100ohm with no effect

 

[pdul]

The input reacts as expected, can easily be adjusted to 0 on the pot.

 

[pdul]

So i guess the problem is between the inputstage and riia.

 

[RCruz]

For how long have you left it running ?

 

[pdul]

Ca. three days

 

[RCruz]

Does it amplify ?

 

[pdul]

I havent had the guts to connect it yet, to my relayvolume with +/-100mv on the output
it would sound like an AK47😱

 

[pdul]

I guess i can try with a series cap on the output