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Old 21st September 2012, 07:35 PM   #7381
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Sometimes it is unavoidable to buy in China, for example Neodymium magnets, but i buy and build most of my stuff in Europe. Some of the best loudspeaker drivers still come from Scandinavia.
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Old 21st September 2012, 07:43 PM   #7382
pdul is offline pdul  Denmark
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Yes I use Scanspeak tweeters myself
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Old 21st September 2012, 07:45 PM   #7383
kamis is offline kamis  Serbia
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Quote:
Originally Posted by Joachim Gerhard View Post
The transformers are delayed until december, sorry.
I will use Block transformers for the prototype so that i can cary on.
Later the Hammonds can be fitted and i will listen if they make any difference.
Your Block transformers are of the same construction (low profile PCB balanced windings and low radiation) like Hammond you have ordered , perhaps even better with epoxy encapsulation and higher isolation between primary and secondary than Hammond. Many manufacturers produce similar transformers, and I think that they are better than R-core types for audio.
I use low profile PCB transformers made by company ANG in Bulgaria.
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Old 21st September 2012, 09:22 PM   #7384
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I like the blocks a lot and use them all the time. I just thought there was some appetite for something more "exotic". I do not think that the Paradise R3 reacts on the transformer choice much anyway. And then we have the 1H coils. That is a huge size for a low level transistor amps. I know on the other hand that " a good feeling" can have an effect on perceived sound quality. Another " strong placebo effect".
I will nevertheless make some measurements how much quality i get with minimum outlay.
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Old 21st September 2012, 09:25 PM   #7385
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Yes, they look very good. The 2 x 24V model can do it.
18VA and 24VA transformers - ???
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Old 22nd September 2012, 06:28 PM   #7386
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pdul, i have measured some of your trannies and they are around 550 so our measurements are consistent. I have now a lot of good pairs. One was faulty so i can only repeat : measure each end every transistor and do not swap NPN and PNP. It happened to me and i have a lot of experience. I will also finish to select the PNP´s for you today.
I already have 50 good ones.
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Old 22nd September 2012, 07:22 PM   #7387
pdul is offline pdul  Denmark
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Sounds good, and sorry for the dead one It is easy for me to keep them apart, since only the npns have cowboy legs and the pnps are strait
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Old 22nd September 2012, 11:48 PM   #7388
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cowboy legs, lol.
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hoping to pick up some things.
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Old 23rd September 2012, 04:43 AM   #7389
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Here are 50 of the PNP. They have Hfe between 530-570.
Attached Images
File Type: jpg pnp.jpg (761.0 KB, 237 views)
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Old 23rd September 2012, 07:43 AM   #7390
Salas is offline Salas  Greece
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Quote:
Originally Posted by sq225917 View Post
cowboy legs, lol.
Yep, the ammo tape ones, they are called cowboys sometimes. Another good one is when we twist leg positions in different pin order equivalents: Irish dancers.
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