Ironamp Video Posted

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dimkasta

dimkasta

Member
Joined 2010
Very nice video.

If you are taking notes for part two, I would love to see some 4ohm love since we are using an output trafo.

I had a look at the Hammond line since it would be easier for me to get, but they seem to be designed for tubes. Higher primary impedance, lower currents and weird pinouts, and I was lost.
You think we can make it work with something like that? Tube oriented trafos should be much easier to source. Or the line is getting very steep?

http://www.hammondmfg.com/pdf/EDB1650NA.pdf
 
D

DIYspaceW

Member
Joined 2009
First of all 1V RMS output its way too low for direct driving the SIT.
The output impenace is ok.
Most important for me is the sound quality, I doubt its any good. I have
an ipod who served me once for testing as a source and it sounded ok,
but way toooo bad...But we all have diferent tastes, so if you dont want to build
or buy a good source (dac,cd player, else...) it can be as a substitute but you will need an pre amp (20x gain or more) whit low output impedance to be able to drive a SIT like this. Just my 2 cents...:)
 
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Soundhappy

Soundhappy

Member
Joined 2012
Zen Mod said:
VBLOG #1: Curve Tracer, Big VFET, SIT Modelling, Ironamp - YouTube

:cheers:

I'm , besides being even more ignorant then usual , simply jealous

:devily:
Click to expand...

Impressed by mr Rothacher quality of teacher.
Very instructive blog woow this other SIT's are big sized one.
Very beauty diy Ironamp is a source of inspiration in build .
Carefully finished in all aspects.
Look classy wooden frame with transformers on the top. Elegant too
Delightful thanks Mike for made this video and Zen Mod for share

Kindly regards

Christophe :)
 

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J

jama

Member
Joined 2004
Hello DIYspaceW. I have four pieces and I buyed from ebay source. There is not a lot sources, only a few. But they are very old stock and are a little oxidized, but electricaly are good. I check the four mine and are OK.
 

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Soundhappy

Soundhappy

Member
Joined 2012
Ironamp with Tokin SIT's ?

Can this transistors be adapted to Ironamp topology ?

I have find 100% genuine supply of 2SK182ES version of SIT 's in Japan.

He send me all datasheet of device but is not pdf i be try send if possible or You can ask him directly.
Anyway this is e-mail i have received from Sibatech .Inc

Best regards :)

" Many thanks for your inquiry on Maxonic/ SIT to our website.

Although "2SK77B" is not available from Maxonic, "2SK-182ES" SIT is
possible instead by \19,500/piece (Plus shipping cost) (Left side round
shaped device on attached photo)

Thank you very much again for your kind attention in advance and we look
forward to your kind response, soon.

Yours Sincerely
Hiroshi Ishihara

Director
Sibatech,Inc.
No.1301,8-25-22
Higashisuna, Koto-ku,Tokyo
Japan 136-0074
TEL:813-3645-1646
FAX:813-3645-1948
E-mail: <hishihara@sibatech.co.jp>
URL:Sibatech, inc. High-quality Audio Equipment from Japan "

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