I have for sale the amplifier pcbs from a GFA5802. One has a few burned tracks and components(resistors and a to92bjt) meanwhile the other one was working first of disassembling everything.
Both pcbs suffered numerous repairs by how they look and how the vgs of the mosfets measure. This is not my amp and I don`t know much about its past.
The pcbs are sold as they are.
This is the one with the burned components and tracks and is the left channel.
And here is the “good” one that will come exactly like the above one, without the aluminium bracket and power mosfets.
I measured the vgs of all mosfets(at 30Vds and 0.9A Id) to see if they still are ok and got the following list
3.863
3.864
3.897
3.898
3.905
3.923
3.926
3.936
3.937
3.940
3.945
3.968
3.978
3.992
4.002
4.004
4.029
4.035
4.037
4.060
4.063
4.084
4.090
4.138
4.144
4.177
4.184
4.324
4.342
4.378
The mosfets look like this
Adding also the brackets where the mosfets are mounted
Adding also the input modules
Price for everything 150€
Or trade with sits, k170/j74 jfets or j313/k2013 mosfets.
Both pcbs suffered numerous repairs by how they look and how the vgs of the mosfets measure. This is not my amp and I don`t know much about its past.
The pcbs are sold as they are.
This is the one with the burned components and tracks and is the left channel.
And here is the “good” one that will come exactly like the above one, without the aluminium bracket and power mosfets.
I measured the vgs of all mosfets(at 30Vds and 0.9A Id) to see if they still are ok and got the following list
3.863
3.864
3.897
3.898
3.905
3.923
3.926
3.936
3.937
3.940
3.945
3.968
3.978
3.992
4.002
4.004
4.029
4.035
4.037
4.060
4.063
4.084
4.090
4.138
4.144
4.177
4.184
4.324
4.342
4.378
The mosfets look like this
Adding also the brackets where the mosfets are mounted
Adding also the input modules
Price for everything 150€
Or trade with sits, k170/j74 jfets or j313/k2013 mosfets.
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