In my opinion its just a journey into one of it...All versions have their own ad-and dis advantages. The simpliest is still the L simple SIT from Michael.
I tried only two of them. But what looks like is that the SIT is a very neutral device. In both versions I tried the sound differences are made by driver and pre amp! So I would not bother so much whit iron. I made it whit iron and the sound is a little bit on darker side, but this is what I like, so its all about taste and color...At the end I must say, 2sk82 is a great transistor! Why the f--- does no one more bother to produce something similar,
it would make more ideal world of music reproduction in my opinion!😀
Compensated Ironamp
Many thanks for the reply! One day somebody will come up with another interesting semiconductor (hope dies last...)
The primary goal of my previous posting was to make others aware that they might be able to experience an ironamp without having to make any investment in further hardware. All you need is a monoblock of the inductor version of L'amp + the power supply transformer from your second monoblock converted to OT use.
In addition, the articles in L'Audiophile are highly interesting. Those people had done a great job. Particularly i am interested in the ones concerning thermal distortion. Does anybody know about an english version?
Best regards
Many thanks for the reply! One day somebody will come up with another interesting semiconductor (hope dies last...)
The primary goal of my previous posting was to make others aware that they might be able to experience an ironamp without having to make any investment in further hardware. All you need is a monoblock of the inductor version of L'amp + the power supply transformer from your second monoblock converted to OT use.
In addition, the articles in L'Audiophile are highly interesting. Those people had done a great job. Particularly i am interested in the ones concerning thermal distortion. Does anybody know about an english version?
Best regards
Fancy input transformers
Hi Mike,
Have you tried those transformers? What part numbers do you use?
Thanks,
Vlad
Hi Mike,
Have you tried those transformers? What part numbers do you use?
Thanks,
Vlad
Thank you. Much appreciated. I'm still waiting on a few parts for the power supply. Nothing fancy. It will be a straight-forward unregulated arrangement, and those who want regulators and such can make those changes to suit their own requirements.
In early transistors days we have see interstage transformer coupling
solid state amplifier in commercial phonograph from Philco
that is fun to read page with topology explanations from year 1955.
Iron was commonly used and little count of components
i like it ...and though updated to "modern" era can give purer sound.
For better vue please zoom on
Best regards
solid state amplifier in commercial phonograph from Philco
that is fun to read page with topology explanations from year 1955.
Iron was commonly used and little count of components
i like it ...and though updated to "modern" era can give purer sound.
For better vue please zoom on
Best regards
Attachments
Ok Philco is push-pull one 🙂
Was just inspire me to think how much complicated be make
parallel single-ended Ironamp with twice of power ?
Hmm...for house dance party 😀
Impedance adaptation scenarios ?
Have a nice day
Was just inspire me to think how much complicated be make
parallel single-ended Ironamp with twice of power ?
Hmm...for house dance party 😀
Impedance adaptation scenarios ?
Have a nice day
Attachments
Last edited:
I tested the power supply over the weekend and everything looks pretty good. Should be on track to make the final build video in mid-late March.
🙂🙂🙂🙂🙂 Excellent 🙂🙂🙂🙂🙂
Can be too early to have data for PSU transformer ?
What choice the good ones ?
Thanks You for news Mr Rothacher
Best regards
Interesting Originals Service Manuals for solid state adaptations of tube amplifiers with schematics,BOM, photos etc...by Western Electric with transformer coupled, lot have ultra minimal signal path and be dedicated to play with high efficiency horns or speakers et voilà
Western Electric
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Shappy
will you recommend me that sort of weed , you're wasting ?
Bonjour@Zen Mod
I don't but You have recommended me maybe something ???
Sorry but if is not connected with transistors like Sit's Vfet's triode valves amplification and transformers coupled or other always Ironamp...i don't wasted Your dodo time.
Any help is Sissi apreciated and she like ZEN MOD 😉
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Hi Mike
Acronman 2SK82 KD-33 grade is out off stock now i imagine this is reason for adaptation of Ironamp for KE-33.
Personally i have KD grade on my table and think others diyers to.
Could we have two versions KD and KE in your Ironamp video part II ?
Thanks for response 🙂
Best regards
Christophe
just matter of bias voltage
if , when starting with max. negative bias voltage , you have greater Iq then anticipated/planned - you need few volts more
so - simple - make it right now like that
😉
if , when starting with max. negative bias voltage , you have greater Iq then anticipated/planned - you need few volts more
so - simple - make it right now like that
😉
For all new here, you dont need to buy 4pairs of 2sk82! They are very very reliable,
will last decades (just assuming), whit proper handling for shure!
Mine are in use a little less then one year and work stable!
My 2 cents...🙂
Dont drain the river out of its time...
will last decades (just assuming), whit proper handling for shure!
Mine are in use a little less then one year and work stable!
My 2 cents...🙂
Dont drain the river out of its time...
Yes, what ZM says.
Also, here's a little update: I just got my top panels and custom parts from Edcor. So, I'm working on the final assembly as we speak. Then to make a video, which takes time. 🙂
Also, here's a little update: I just got my top panels and custom parts from Edcor. So, I'm working on the final assembly as we speak. Then to make a video, which takes time. 🙂