Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Haufe ST4574
Haufe ST4574
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 26th September 2002, 10:10 PM   #1
lohk is offline lohk  Europe
diyAudio Member
lohk's Avatar
Join Date: Apr 2001
Location: Somewhere in Austria, near the Danube
Default Haufe ST4574

Does anybody have some information about the Haufe ST4574 transformer ?

I have several of those (which I found surplus) and they look good (mu-screened, etc.). DC impedance is about 2 x 17 Ohm and 840 Ohm.

A signal applied is amplified 10x approx.

The square wave signal looks different to the one of my Neutrik L1s (Line 1:1) for example.
The Neutrik shows some overshoot ringing, while the Haufe shows no ringing at all, but shapes (smoothes) the square waves somehow.
Frequency response (sinus, via the scope) is pretty linear from 50Hz to 20kHz, the Haufe less than the Neutrik.

Ok, I admit that I do not have much knowledge about audio line lever transformers.

Could I ue this transformers as Mic inputs ? Or MC inputs even ?
( I mean I will try that anyway, but... )

Any ideas or hints ?
  Reply With Quote
Old 27th September 2002, 02:33 AM   #2
dice45 is offline dice45  Germany
diyAudio Member
Join Date: Jan 2002
Location: Munich, Bavaria
you should contact Haufe. I compared the Haufe sitting idle on Manfred Huber's tubbe preamp as MC-input (i meanwhile use the Jensen JT-346AX) but they have a differning number, T890. Sound wonderful as MC-input or dynamic µphone input trannies.

Haufe is quite famous for making very good sounding signal trannies for all sorts of levels in the professional/studio area.

Haufe still exists, contact them and ask them.
INdependently, you should try them out as MC-inut trannie. 1:10 is just fine for that and impedances look like this could work.

The Jensen priamry has 5.73R in 1:4 mode and 0.643R in 1:12 mode; the secondary has 154R DCR.
So i would presume the Haufe trannie is rather usable for MC cartridges with a lil'bit higher source impedance, maybe not try it with an Ortofon MC 1st.
  Reply With Quote
Old 28th September 2002, 12:41 AM   #3
lohk is offline lohk  Europe
diyAudio Member
lohk's Avatar
Join Date: Apr 2001
Location: Somewhere in Austria, near the Danube
Thank you, Bernhard, for the quick answer. Yes, I contacted Haufe recently, but I did not recieve a message yet.

I will try them as MC inputs soon, but I have to change my naimmod-preamp to MM operation before...

Will a Goldring Elite or a Audio Technica OC9 be a match perhaps ?


ps: Folks, if they will work as MC inputs, I will give some of them away, I have eight of them and I will not use the all. Not for free maybe, but for something useful...
  Reply With Quote


Haufe ST4574Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: 50 X pair of Haufe audio trafo's andre tchmil Swap Meet 0 11th December 2006 08:40 PM

New To Site? Need Help?

All times are GMT. The time now is 11:54 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio