KraftWerk
Well-known member
- Joined
- Aug 14, 2010
- Messages
- 110
Greetings to all,
I made LO 1066, following CJ's instructions.
The only difference is a slightly thinner wire, which is 0.27 mm in cross-section, and a slightly thicker polly gap, which is now 0.05 mm (instead of 0.00135 inch).
My Varnish is thinner and I was not able to get such a thick layer even though I dipped it several times..
I put the transformer in Vakum owen...
I dried it in the oven.
I'm not satisfied.
I compared the transformer with exactly the same conditions by putting it in the AML ez 73 and made some measurements.
At first listen, without measuring, everything seemed fine...but, by listening carefully, I confirmed 2 things;
1. My transformer is a little quiet (it's not a problem)...without measuring I thought it was maybe around 0.5 db...later I saw on measurements that it was around 0.3 db
2. The difference is in the treble...it's not too big, but you can hear it if you listen carefully.
3. My transformer is not in class with Carnhill VTB. He is more like 2d, while for Carnhill I can say that he is 2d. The difference is not heaven and earth,, but I feel them and can easily distinguish them by blind listening.
I would like to upgrade my transformer.
The measurements clearly show a huge difference in the frequency response at high tones.
I know it's not in the audible spectrum, but maybe that's why the Carnhill sounds HiFi, rounded and clean compared to mine, which is a bit lifeless and boring.
Can someone from you help me with this?
-Tomorrow I will upgrade my winding..I read some articles about winding and I noticed differences that I will correct.
I will also buy a new varnish..
What do you think I still have to do...?
I made LO 1066, following CJ's instructions.
The only difference is a slightly thinner wire, which is 0.27 mm in cross-section, and a slightly thicker polly gap, which is now 0.05 mm (instead of 0.00135 inch).
My Varnish is thinner and I was not able to get such a thick layer even though I dipped it several times..
I put the transformer in Vakum owen...
I dried it in the oven.
I'm not satisfied.
I compared the transformer with exactly the same conditions by putting it in the AML ez 73 and made some measurements.
At first listen, without measuring, everything seemed fine...but, by listening carefully, I confirmed 2 things;
1. My transformer is a little quiet (it's not a problem)...without measuring I thought it was maybe around 0.5 db...later I saw on measurements that it was around 0.3 db
2. The difference is in the treble...it's not too big, but you can hear it if you listen carefully.
3. My transformer is not in class with Carnhill VTB. He is more like 2d, while for Carnhill I can say that he is 2d. The difference is not heaven and earth,, but I feel them and can easily distinguish them by blind listening.
I would like to upgrade my transformer.
The measurements clearly show a huge difference in the frequency response at high tones.
I know it's not in the audible spectrum, but maybe that's why the Carnhill sounds HiFi, rounded and clean compared to mine, which is a bit lifeless and boring.
Can someone from you help me with this?
-Tomorrow I will upgrade my winding..I read some articles about winding and I noticed differences that I will correct.
I will also buy a new varnish..
What do you think I still have to do...?