hello,
I would like to thank who have made the project possible and helped me at all.
The Amplifier are great, better than I had thought.
If the lower values of the amplifier ok.
Temperature after 3.5 hours. Measured directly on the housing of 2SK82 83 ° C.
Heat sink 50 ° C
Voltage from 21.5 to 21.8 volts
Bias -5.5 volts
Greetings Dirk
Hallo,
ich möchte mich bei allen bedanken die das Projekt möglich gemacht und mir geholfen haben.
Die Verstäker sind toll, besser als ich gedacht hatte.
Sind die unteren Werte des Verstärkers ok.
Temperatur nach 3,5 Std. direkt am Gehäuse des 2SK82 gemessen 83°C.
Kühlkörper 50°C
Spannung 21,5 - 21,8 Volt
Bias -5,5 Volt
Grüße Dirk
I would like to thank who have made the project possible and helped me at all.
The Amplifier are great, better than I had thought.
If the lower values of the amplifier ok.
Temperature after 3.5 hours. Measured directly on the housing of 2SK82 83 ° C.
Heat sink 50 ° C
Voltage from 21.5 to 21.8 volts
Bias -5.5 volts
Greetings Dirk
Hallo,
ich möchte mich bei allen bedanken die das Projekt möglich gemacht und mir geholfen haben.
Die Verstäker sind toll, besser als ich gedacht hatte.
Sind die unteren Werte des Verstärkers ok.
Temperatur nach 3,5 Std. direkt am Gehäuse des 2SK82 gemessen 83°C.
Kühlkörper 50°C
Spannung 21,5 - 21,8 Volt
Bias -5,5 Volt
Grüße Dirk
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Last edited:
you have 83C at transistor; way too much for my liking
give us temperature directly at L bracket near transistor and temperature at main heatsink near L bracket
do you have temp. conducting grease between transistor and L bracket , same as between L bracket and main heatsink ?
from pictures it seems there isn't temp. grease ......
give us temperature directly at L bracket near transistor and temperature at main heatsink near L bracket
do you have temp. conducting grease between transistor and L bracket , same as between L bracket and main heatsink ?
from pictures it seems there isn't temp. grease ......
Amplifiers are now only 0.45 hrs. In operation. The above mentioned values after 3.5 hours. Music fortuitous.
Hi Dirk1
Could ask where i can buy this circular shape heat sinks ?
Any source link ?
Looks good congratulations for diy such sit amplifier.
Best regards
.......
verwende Wärmeleitfolie.
on second reading ........
setzen silica scheiben und warmeleit paste fur transistor
nur warmeleit paste zwischen L profile and kuehler
Hello,
Heatsink link:
Kühlkörper - f.cool - Katalog Fischer Elektronik
SK 592 ...
@ Zen Mot.
did you mica sheets and thermal grease on the transistor?
I sometimes two 6 dB fan placed under the housing after two hours still 65 ° C.
Guten Tag,
Kühlkörperlink:
Kühlkörper - f.cool - Katalog Fischer Elektronik
SK 592 ...
@ Zen-Mot.
meintest du Glimmerscheiben und Wärmeleitpaste am Transistor?
Ich mal two 6 dB Lüfter unter das Gehäuse gelegt nach zwei Stunden immer noch 65 ° C.
Heatsink link:
Kühlkörper - f.cool - Katalog Fischer Elektronik
SK 592 ...
@ Zen Mot.
did you mica sheets and thermal grease on the transistor?
I sometimes two 6 dB fan placed under the housing after two hours still 65 ° C.
Guten Tag,
Kühlkörperlink:
Kühlkörper - f.cool - Katalog Fischer Elektronik
SK 592 ...
@ Zen-Mot.
meintest du Glimmerscheiben und Wärmeleitpaste am Transistor?
Ich mal two 6 dB Lüfter unter das Gehäuse gelegt nach zwei Stunden immer noch 65 ° C.
.....
@ Zen Mot.
did you mica sheets and thermal grease on the transistor?.......
yes
significantly better than modern silicone rubbery sheets
Vielen Dank
Thanks for the link
Best regards
I would like to thank who have made the project possible and helped me at all.
Whose loudspeaker drivers are those?
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