SE Electronics Z3300a

GroupDIY Audio Forum

Help Support GroupDIY Audio Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
The most suitable I would use it for the microphone with the K47 flat.

You WILL want to disconnect the U87-like feedback network, if you plan to install a non-K67 capsule. Otherwise it'll end up much too "dark" / dull / muffled.
 
and 2 mica silver... 1000pF

a friend of mine has some polystyren-cooper (rare & not made anymore) he gave me some 680pF for my Oktava MK-012 pair and my Superlux ORTF S502
and 2 mica silver... 1000pF

a friend of mine has some polystyren-cooper (rare & not made anymore) he gave me some 680pF for my Oktava MK-012 pair and my Superlux ORTF S502
the mica I only used in guitar effect pedals, it gives me a kind of resonance. I don't like it on voice, purely personal thing
 
You WILL want to disconnect the U87-like feedback network, if you plan to install a non-K67 capsule. Otherwise it'll end up much too "dark" / dull / muffled.
IIRC the sc1100 has no de-emphasis network
they relied on the shape and size of the headbasket to make a hole in the mids/highs and sound different from the u87

Pictograma Verificată de Comunitate
 
Last edited:
Just a short input : my friend (polystyren-cooper-cap guy) has some Monacor tr (same as the one recommended by micolas) in stock so I'll get one earlier than I thought > let you know soon how things go on...
 
Just a short input : my friend (polystyren-cooper-cap guy) has some Monacor tr (same as the one recommended by micolas) in stock so I'll get one earlier than I thought > let you know soon how things go on...
Good news!👍 I'm curious how the two transformers compare.
Do not throw away the transformer with problems! You never know what it will be used for. I never throw anything away😀
 
The biggest excitement in DIY gives me the tests, even the most absurd ones that sometimes defy pure theory.
😀
à propos, in the dynamic microphones shure 58,57, etc. there are transformers with approximately 2:1 ratio
 

Attachments

  • IMG_20240320_101802_1710922733323.jpg
    IMG_20240320_101802_1710922733323.jpg
    2.6 MB · Views: 0
  • 1710923776364_1710923842881.jpg
    1710923776364_1710923842881.jpg
    3.7 MB · Views: 0
The biggest excitement in DIY gives me the tests, even the most absurd ones that sometimes defy pure theory.
😀
à propos, in the dynamic microphones shure 58,57, etc. there are transformers with approximately 2:1 ratio
Good to know ! that dynamic mics have a 2:1 tr...
I think, as I said before, that I can wire the Monacor in 3:1 (600Ω > 200Ω)
 
You can try
1-3/4-5 or
6-8/4-5 etc etc.
Which sounds better
Pay attention to the phase of the microphone to be identical to the functional one. The phase is also reversed by inverting the wires of a transformer coil (either primary or secondary) or by inverting pins 2 and 3 on the XLR
 
Last edited:
yes coul be... BTW SC450 is also a great donor-body for DIY (€40 or so on second hand market)
You are perfectly right!
It is among my favorite candidates for changes.
I like to increase their capsule polarization voltage with DC/DC, modify the input and de-emphasis, possibly a good capsule.
Right now there is a used one waiting for me to buy. About 50 euros, transport included.
 

Attachments

  • Screenshot_2024-03-20-11-28-00-899_ro.mercador.jpg
    Screenshot_2024-03-20-11-28-00-899_ro.mercador.jpg
    638.8 KB · Views: 0

Attachments

  • 5126_Monacor_LTR-110_transformateur_symetriseur.jpg
    5126_Monacor_LTR-110_transformateur_symetriseur.jpg
    82.8 KB · Views: 0
Last edited:
In my M-audio Nova and Sterling ST-77 I have the transformer with 4:1 ratio, it really delivers a slightly lower signal at the output, but any preamp or interface manages the gain without problems.
If Emmathom wants to change the transformers in both microphones then he will be able to use them as a matched pair without problems.
 
In my M-audio Nova and Sterling ST-77 I have the transformer with 4:1 ratio, it really delivers a slightly lower signal at the output, but any preamp or interface manages the gain without problems.
If Emmathom wants to change the transformers in both microphones then he will be able to use them as a matched pair without problems.
BTW : what do you think of Sterling (cheap) mics ? I've noticed 1 cardio & 1 multi wich could maybe good candidates for diy...
https://www.ebay.fr/itm/315112669156
https://www.ebay.fr/itm/256211139077
 
BTW : what do you think of Sterling (cheap) mics ? I've noticed 1 cardio & 1 multi wich could maybe good candidates for diy...
https://www.ebay.fr/itm/315112669156
https://www.ebay.fr/itm/256211139077
My Sterling ST-77 is very old, Made in Germany, it was quite expensive, built with quality parts, it is my main and favorite microphone for female voices, it sounds like soul, gospel voices from the 80s, (Whitney Houston etc )
What you find now is no longer related to Sterling/Groove Tubes, unfortunately. In addition, they have a noise of 22..24dB unacceptable for me, after 20 years of passion for Rode. However some current Sterling models (which can be found for $40..60 in the US) use an excellent capsule, the same used in expensive microphones, kingkorg wrote about this capsule.

http://recordinghacks.com/microphones/Sterling/ST77
 
Back
Top