nillerviborg said:
Nice price
Is there any noticeable difference in quality or elsewise on this Talema Nuvotem compared to the twice as expensive Toroid International or Amplimo ones?
I'm using ELNA Cerafine 63v capaciters now and I need to change to 80v.
Is there someone here who has experience with Mundorf M-Lytic HC 80v?
Should I opt for 22000uF, 33000uF or 47000uF if physical size does'nt matter?
Hi Chevy,
The Mundorf M-Lytic are look-a-likes to these(made by Krummer,Germany)
Capacitors Please klick at "Krummer-Kondensatoren"
Is it possible to buy them direct from the manufacturer, at least as a group-buy?
The Mundorf M-Lytic are look-a-likes to these(made by Krummer,Germany)
Capacitors Please klick at "Krummer-Kondensatoren"
Is it possible to buy them direct from the manufacturer, at least as a group-buy?
The golden mean said:
Are you sure it's not the other way around?
I have never heard of Krummer but to me Mundorf is a well known manufacturer.
Have you heard the 2 capaciters, or do you in other ways have actual knowledge of them?
nillerviborg said:
Don't forget to add the VAT making it total EUR 87 instead. That makes it a bit higher in price than for instance Trafoshop24.de taking EUR 76 for the same rating...
UrSv said:
Dammit that was cheap!!! - Well, Germany VAT is only 16%, DK is 25%, so those with a REG number pays almost the same...!!
Lars / Viborg - Tech Support for LC Audio
classd4sure said:
Hello ClassD4...
- Which Who in the F**k jerk**s would by accident remove a speaker cable when playing louder than h**l???
- I have fooled some around with the older ZP modules, never burned a single one!! - Beside the time my computer decided to drink coffee and was hooked up to an amp without attenuator for testing weird waveforms...
The VDR mainly protects the output voltage by peaking due to the coil effect if one end ( the speaker ) of the coil is lifted while in a charge peak. If the "dump" occurs when no of the trans' is open, nothing burns... - But try your luck...!!
Lars / Viborg - Tech Support for LC Audio
Anzgar said:
Hello Anzgar...
Some modules will be shipped tomorrow or wednesday for your buddy... - Anything else he need's?? - for free off course?? - Something smaller stuff for compensation, maybe a XO3 cloc for a CD player??
- And everybuddy else... - Please don't start on something funny now...!!
😉
Lars / Viborg - Tech Support for LC Audio - With all due respect...
Hello again Chevy!
I believe it is Krummer which eventually is the manufacturer.
You may not have heard of them , because they sell to companies(like Mundorf and Thel), not to small customers,this is probably the case?
I don´t believe Mundorf to make loudspeaker drivers eighter😉 , but the sell some. We may ask, but will we get an honest answer?🙄
I believe it is Krummer which eventually is the manufacturer.
You may not have heard of them , because they sell to companies(like Mundorf and Thel), not to small customers,this is probably the case?
I don´t believe Mundorf to make loudspeaker drivers eighter😉 , but the sell some. We may ask, but will we get an honest answer?🙄
nillerviborg said:
Indeed ther is! He needs one or two ad 125 and he surely would welcome a clock.Can you hold the modules until I have called him tomorrrow and he will mail you his wishes.
nillerviborg said:
Hm..I never shortcurcuit my amplifier outputs, playing or not and some people, you for instance are running modules with the potetially slower protection.Would it be possible to receive a couple of modules with this present component taking the responsibility myself?
Anzgar said:
Hm..I never shortcurcuit my amplifier outputs, playing or not and some people, you for instance are running modules with the potetially slower protection.Would it be possible to receive a couple of modules with this present component taking the responsibility myself?
I know it's painful but ... try to wait for the fix. Can't see it taking too long to find a proper part for it. Strange things can happen and you may be very thankful to keep your warranty. At least now you're kept aware of what's going on, should make it alot easier! 🙂
Anzgar said:
Hm..I never shortcurcuit my amplifier outputs, playing or not and some people, you for instance are running modules with the potetially slower protection.Would it be possible to receive a couple of modules with this present component taking the responsibility myself?
It's just a matter of Dis-abling the SC via the solder bubble, but "somebody" insist's of the feature being OK....
- I have never believed it to be possible to construct a SC secure AMP - they always blow up when testing the circuitry...
- In my world...Sincerely, Lars / Viborg
nillerviborg said:
It's just a matter of Dis-abling the SC via the solder bubble, but "somebody" insist's of the feature being OK....
- I have never believed it to be possible to construct a SC secure AMP - they always blow up when testing the circuitry...
Sincerely, Lars / Viborg
If every or every second module blows when testing th sc isn't that very expensive? Wouldn't it be cheaper to disable the feature (why make it easy to disable if it's so necessary?),and deliver with a warning, than destroy them at the source?
In due time they could offer an upgraded version for a possible exchange...."Now with working sc protection!"
😀 😀 😀
I am sorry Lars, i would have to disagree with you on this point. It is fully possible to make an amplifier 100% SC proof, be it Class A, A/B or D. Sometimes it just takes a lot of work 😀 Especially in the test phase.
Lars Clausen said:
HeeHee... - I believe, that as my first Kill's in my childhood was on SC secure amps, loaded with toooo many speakers, i havent since dared "testing" on commercial products...
After all, we DO se a fair amount of amp's on the table that "...Oh, but my dear tech. superman, i just wanted to shift to another set of speakers, and i guess the wires could by accident have touched eachother shortly - but i didn't know that was a problem...?"
By the way, LC, i am sober again now... - Are you going to see Annemette, or is she tooo old???
Lars / Viborg
My proposal for a verification test for SC protection is:
1..Deploy the amplifier in a test setup with the same power supply and transformer as suggested in the building manual.
2..Short the output directly on the speaker terminals, using only 1-2 inch of thick wire.
3..Turn the amplifier on without input signal.
4..Turn the input signal 1 kHz sinewave up slowly until the amplifier trips. Leave it tripping for 1 minute.
5..After 1 minute, thermal level must be within spec.
6..Turn input signal up to 0 dB. The amplifier should now trip with regular intervals.
7..Leave it like this for at least 10 minutes.
8..After 10 minutes the thermal level must be within spec, and legal limits. Usually not higher than 60 deg C. (CE and UL).
9..Now still with full power output, remove the short.
10..Re-apply the short for at least 50 times with intervals of a few seconds at full output power.
After this test, you are sure your amplifier is short circuit proof!
😎 (if it survived...)
All the best from
Lars
1..Deploy the amplifier in a test setup with the same power supply and transformer as suggested in the building manual.
2..Short the output directly on the speaker terminals, using only 1-2 inch of thick wire.
3..Turn the amplifier on without input signal.
4..Turn the input signal 1 kHz sinewave up slowly until the amplifier trips. Leave it tripping for 1 minute.
5..After 1 minute, thermal level must be within spec.
6..Turn input signal up to 0 dB. The amplifier should now trip with regular intervals.
7..Leave it like this for at least 10 minutes.
8..After 10 minutes the thermal level must be within spec, and legal limits. Usually not higher than 60 deg C. (CE and UL).
9..Now still with full power output, remove the short.
10..Re-apply the short for at least 50 times with intervals of a few seconds at full output power.
After this test, you are sure your amplifier is short circuit proof!
😎 (if it survived...)
All the best from
Lars
Dexa is the consultancy i run nowadays.
Development of electronics for third party companies, and also support like CE and safety approval design, RoHS conversions, test and verification of products etc.
Many companies have found that it is - all considered - much more efficient to outsource these activities. My customers can concentrate their efforts on sales and marketing of their product.
Soon the wave energy project will take off, and i will make consultancy for that too. Very exiting, and an old dream for me 🙂
My activities in the audio field are very limited at this point, i make some experiments for my own use, and of course participate here on the forum. Just to stay in touch with all you people i know here 😉 If you are asking me, if i am planning on reentering the audio industry as a professional, i can say, that there are no contracts or clauses that can prevent me from doing that. However i have my hands full already with other interesting work, and make very good money.
So any audio related stuff would only be for fun as it is now 😎
Development of electronics for third party companies, and also support like CE and safety approval design, RoHS conversions, test and verification of products etc.
Many companies have found that it is - all considered - much more efficient to outsource these activities. My customers can concentrate their efforts on sales and marketing of their product.
Soon the wave energy project will take off, and i will make consultancy for that too. Very exiting, and an old dream for me 🙂
My activities in the audio field are very limited at this point, i make some experiments for my own use, and of course participate here on the forum. Just to stay in touch with all you people i know here 😉 If you are asking me, if i am planning on reentering the audio industry as a professional, i can say, that there are no contracts or clauses that can prevent me from doing that. However i have my hands full already with other interesting work, and make very good money.
So any audio related stuff would only be for fun as it is now 😎
It all sounds very interesting, and I wish you the best of luck,
but I do hope that you aren't leaving audio for good 🙂
I have built and owned quite a few of your constructions, and have always been very pleased about them.
By the way, how is your friend with the ballbearing company doing?
Do you have a link to his website?
but I do hope that you aren't leaving audio for good 🙂
I have built and owned quite a few of your constructions, and have always been very pleased about them.
By the way, how is your friend with the ballbearing company doing?
Do you have a link to his website?
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