Hej alla svenskar, and other Crescendo fans too! 🙂
I think you swedish guys should trust the english version of the Crescendo project published in the beginning of 80's.
Bill Cedrum who translated the magazine to swedish (Allt om Elektronik) is not an engineer and used to have a technical flawed language, but he have learned throughout the years.
A note to you all regarding the picture of a Crescendo attached inPost #43, the output resistors (white reactangular) on that picture are wire-wounded, these are idunctive and is a big cause why Crescendo oscillated
Change to 5 x 1 Ohm and 1 watt film-resistors per each wirewounded resistor.
Lycka till! 😉
I think you swedish guys should trust the english version of the Crescendo project published in the beginning of 80's.
Bill Cedrum who translated the magazine to swedish (Allt om Elektronik) is not an engineer and used to have a technical flawed language, but he have learned throughout the years.
A note to you all regarding the picture of a Crescendo attached inPost #43, the output resistors (white reactangular) on that picture are wire-wounded, these are idunctive and is a big cause why Crescendo oscillated Change to 5 x 1 Ohm and 1 watt film-resistors per each wirewounded resistor.
Lycka till! 😉
danne_linkinpar said:
Ohm's law tell you that.
If the output power is 250W-RMS, and the speaker's impedance is 4ohm, then the RMS current is 7,9A, and the peak current is 11,18A.
Sorry, but if you cannnot calculate it yourself, and you don't know Ohm's law, I dont suggest you to bulid a 250W rated amplifer.
But ´how mutch is the hole amplifer?? how many amper??
A effekt amplifer cant only be 7,6 amper!!!
A effekt amplifer cant only be 7,6 amper!!!
Hi Danne,
can you ask the question a different way? I am having a little trouble understanding what you require and you seem to have an even bigger problem translating our English answers.
We'll be patient, just give us a chance.
can you ask the question a different way? I am having a little trouble understanding what you require and you seem to have an even bigger problem translating our English answers.
We'll be patient, just give us a chance.
Hi Danne,
Why do you ask? Is it short term peak or peak or long term rms or DC sustained. The highest value first and the lowest value last in that list. The longer the time requirement the more your answer will depend on the effectiveness of the heatsinks and PSU.
Why do you ask? Is it short term peak or peak or long term rms or DC sustained. The highest value first and the lowest value last in that list. The longer the time requirement the more your answer will depend on the effectiveness of the heatsinks and PSU.
I have it!
Danne, I can help you out. I have all the schemas you need. Just mail me your home adress and I mail them to you.
My Crescendo 180W has been doing very well many years. Now I want to make a modern version, changing the boards and reuse chassis and power supply.
Therefore, any suggestions of improvements is of interest. I have started to collect them on my home page. Comments please!
Improvements of 1982 Crescendo 180W
Danne, I can help you out. I have all the schemas you need. Just mail me your home adress and I mail them to you.
My Crescendo 180W has been doing very well many years. Now I want to make a modern version, changing the boards and reuse chassis and power supply.
Therefore, any suggestions of improvements is of interest. I have started to collect them on my home page. Comments please!
Improvements of 1982 Crescendo 180W
Vet du vart man kan köpa sånna där plattor som man sätter på transformatorerna så dom ligger på plats??
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