@fabrice63: thank you! I will see if I can find them or their equivalent in the US. The specs are very good: stainless steel, and the multipart housing and contact system. I have to make sure that the connector is rated for AC and at least 6 amps (ideally 10).
I think this could be an AMP connector system.
I think this could be an AMP connector system.
maybe but it works good , wire are soldered and well protected with double heat shrink 🙂
.
Thanks a lot for really trying to set words on how you think the different amps sound.
Unfortunately that is quite seldom on these pages. As newcomer to a thread you have to travel through thousands and thousands
of posts, just to find out that nobody has mentioned how the amps sounds.
Unfortunately that is quite seldom on these pages. As newcomer to a thread you have to travel through thousands and thousands
of posts, just to find out that nobody has mentioned how the amps sounds.
ArthurDK, your correct…it’s extremely difficult, at least for me to effectively describe “my sound” from all the different amps I build thanks to all the wonderful designs in this forum. All I can say is there is a ton of knowledge in these thousands of pages.
They all produce music magnificently! Just pick one, build it, then sit back & enjoy. You won’t be sorry. It’s rather infectious no doubt. Just ask for help when you need it.
Cheers
They all produce music magnificently! Just pick one, build it, then sit back & enjoy. You won’t be sorry. It’s rather infectious no doubt. Just ask for help when you need it.
Cheers
Writing subjectively about the sound of a tweaked amplifier becomes even more challenging when experimenting with alternate output devices. That has been where my efforts have been for quite a few months. Some will recall that my original F6 used the FQH44N10 Mosfets in its output stage. As those became difficult to source, I tried a few others. The JFet version of the F6 revisited was built with IRFP048. The Diamond buffer version started with the FQH44N10, then another set of boards was built with the XTQ75N10P.
Given the F6 Diamond configuration, both the FQH44N10 and IXTQ75N10P sound open and transparent, with the liveliness that I have come to appreciate with the higher transconducdance Mosfets. Differences lie mainly in the subtleties of harmonic structure of instruments and some smaller details of imaging. I run these with a 'hot' power supply of +/– 26.5V. Adventurous DIY enthusiasts can try the same configuration without fear of melting anything, as long as bias current is kept withing 1.8A or less. In practice, I have found little to no sonic improvement with bias above 1.65A, so that is where my amps are operating these days. I have a tube of IXTQ36N30P that will also be pressed into service. Some of these already made into my F5m, with results so favorable that I haven't been willing to take that amp out of my system for several months. In the case of the F5m, I found it necessary to voice the amp differently using gate stopper resistors, as the IXTQ parts sounded slightly shrill until I did so.
That is the fun of DIY.
Given the F6 Diamond configuration, both the FQH44N10 and IXTQ75N10P sound open and transparent, with the liveliness that I have come to appreciate with the higher transconducdance Mosfets. Differences lie mainly in the subtleties of harmonic structure of instruments and some smaller details of imaging. I run these with a 'hot' power supply of +/– 26.5V. Adventurous DIY enthusiasts can try the same configuration without fear of melting anything, as long as bias current is kept withing 1.8A or less. In practice, I have found little to no sonic improvement with bias above 1.65A, so that is where my amps are operating these days. I have a tube of IXTQ36N30P that will also be pressed into service. Some of these already made into my F5m, with results so favorable that I haven't been willing to take that amp out of my system for several months. In the case of the F5m, I found it necessary to voice the amp differently using gate stopper resistors, as the IXTQ parts sounded slightly shrill until I did so.
That is the fun of DIY.
@TungstenAudio: I appreciate your experimental approach and your detailed reports of the various changes you have implemented.
@Monk55 If you need Cinemag to Jensen adaptor boards, contact me. I have a few left over from my purchase of 30.
Dspace,
I have the latest board..all inclusive.
Thank you for the most generous offer.
I have the latest board..all inclusive.
Thank you for the most generous offer.
What about adding these F6R boards to the store? 🙂
No real panic or hurry, but i am curiously contemplating to build these JFET F6R versions after my Tokin SIT-amp builds.
No real panic or hurry, but i am curiously contemplating to build these JFET F6R versions after my Tokin SIT-amp builds.
I would be fine with that. I would also be willing to make a few changes to accommodate the stores needs.
Thanks, I did know about the Onsemi FQA36P15 (now discontinued), but was not aware of the IXYS replacement part.
So now I have added to the confusion as well. With replacement I meant IXTQ36P15P (to replace FQA36P15), you used ITXQ26P20P for the P channel, correct?
Hi all
Anyone tried the CineMag CMOQ-4HPC transformer, High Nickel version... Better or worse?
B.R. // Mats
Anyone tried the CineMag CMOQ-4HPC transformer, High Nickel version... Better or worse?
B.R. // Mats