BV08 transformer capacitance, comparable to mic cable capacitance?

[Moby]

Maybe so (but it is mentioned like so on the datasheet).
I guess you want to say that the original is/was better then the copy.
That is fine as well as the value can then also only be better/lower ( if it is true that the original is better)
So it is a good starting point anyway as it is closest to the original i guess.

I had a broken transformer once in a Oktava mic and replaced it with a tiny mains transformer and could’t hear any difference at all (no dc flowing through the transformer).
I had a matched pair and it still sounds as matched ( no measurements done yet)
Maybe that says something about my hearing or that all the talk about transformers is just talk. Now i did not overdrive it so here the difference maybe noticed.

I don't know is it this copy worse or better but for sure is not the same. It's winded diferent than original and can't have the same "numbers" especially the capacitance is not the same.

I don't want to judge your hearing. Maybe Oktava also used the "tiny mains transformer".

 

[abbey road d enfer]

I think you could estimate the capacitance using the data sheet. Here you see the measurements with its input and output loads.

https://www.don-audio.com/Haufe-BV-08-BV8-microphone-audio-transformer

I don't see in this link any information that would allow to estimate the electrical parameters of the xfmr. Even the inductance is not documented.

 

[Lampie519]

There is indeed no mention of any inductance or capacitance but you can see the impedances ( load and source) plus frequency response. So it can be calculated from here.

 

[abbey road d enfer]

There is indeed no mention of any inductance or capacitance but you can see the impedances ( load and source) plus frequency response. So it can be calculated from here.

The only data that may help calculating the inductance is the conjunction of 10kohm reflected Z and -0.5dB at 20Hz, but it would give the LF inductance, which is noticeably higher than the midrange inductance.
The -0.5dB at 20kHz may help calculating the combined effects of parallel capacitance and leakage inductance. In the absence of other data, there is an infinity of solutions and nothing to distinguish them.

 

[Lampie519]

Additional info can be found here :
https://www.tab-funkenwerk.org/articles-tech-documents-2/bvo8-transformer/
Naturally you all know of this so nothing new here…

Here the inductance is mentioned, the cable diameter and the number of windings. So anyone could make one with the right tools (and proper lamination material). The last will be a pain to get. I have not yet looked if there is a supplier for this.

 

[Khron]

**** you!

That's a well-considered and eloquent response...

I foresee this thread getting locked in 5... 4... 3...

 

[Recording Engineer]

This whole thread seemed weird, nearly right out the gate. Honestly, ELS, your attitude nearly this entire thread has just been plain weird.

 

[kingkorg]

Just to play a devil's advocate for a second. I've seen some simple questions turn into needlessly long threads here. Is there anyone who can simply answer the question of what the capacitance of bv08 is?

 

[doqmemory]

This whole thread seemed weird, nearly right out the gate. Honestly, ELS, your attitude nearly this entire thread has just been plain weird.

My guess is that this thread was created by a chatbot.

 

[Ricardus]

That's a well-considered and eloquent response...

I foresee this thread getting locked in 5... 4... 3...

Based on another post they made please remove the account. it's a troll.

 

[Moby]

Just to play a devil's advocate for a second. I've seen some simple questions turn into needlessly long threads here. Is there anyone who can simply answer the question of what the capacitance of bv08 is?

It can't be a straight forward answer because transformer is a passive component where inductance, capacitance and resistance plays the frequency response together. Also, not just one "capacitance" is present. I still try to understand the initial question. CJ answed it already, explained that there is more than one capacitance, but it seems that his answer is not what we are looking for. Also, I agree some answers are quite malicious but let's ignore them.
At the end I can measure the capacitance of the Bv.08's primary non terminated, out of the circuit, but is it the parameter author is looking for?

 

[kingkorg]

It can't be a straight forward answer because transformer is a passive component where inductance, capacitance and resistance plays the frequency response together. Also, not just one "capacitance" is present. I still try to understand the initial question. CJ answed it already, explained that there is more than one capacitance, but it seems that his answer is not what we are looking for. Also, I agree some answers are quite malicious but let's ignore them.
At the end I can measure the capacitance of the Bv.08's primary non terminated, out of the circuit, but is it the parameter author is looking for?

I get it

 

[abbey road d enfer]

My guess is that this thread was created by a chatbot.

Bots use AI (Artificial Intellignece); this one seems to use AS (Artificial Stupidity).

 

[Ricardus]

Bots use AI (Artificial Intellignece); this one seems to use AS (Artificial Stupidity).

Come on abbey, we can do better. The acronym should be ***, not AS.

Artificially Serious Stupidity or something thereabouts.

 

[terry setter]

Thank you, Moby. I think you'd be doing us all a favor by making the measurement and posting it here.

 

[Tubetec]

ELS ,
I think its probably time your refueled your spaceship and blasted back down the blackhole you escaped from ,
Theres a lot of helpfull people here with thousands of posts , insulting them wont win you any friends ,
We've had a few like you before , your not worth a squirt of piss to a man dying of thirst .
Sling your hook shipmate ,

 

[Mr. Moscode]

This is the guy who got into it with his smps power supply for small tube amp. I gave up.
He know just enough to be dangerous, hopefully only to himself.

 

[Tubetec]

Aggrieved **** Stirrer describes the condition succinctly I believe ,

 

[Ricardus]

Aggrieved **** Stirrer describes the condition succinctly I believe ,

Oh HECK yeah.

 

[Ricardus]

Aggrieved **** Stirrer describes the condition succinctly I believe ,

To quote Don Draper:

"The best idea ALWAYS wins, and we all know it when we see it."

BAM.