memphis pr 500.1

[timwebb]

i got this amp from a shop its in bad shape. it has no gate resistors or resistors on the output gate. any help?

 

[mike49504]

Hopefully we can help eachother out. I have the same amp here Mines missing the fets and rectifiers.

The resistors that yours is missing are:

R109,R108,R107 They are:33 ohm

R101,R102,R103 They are:22ohm

Wondering if you could tell me what fets are in this amp and whats in locations DH1,DH2,DH3,DH4

 

[timwebb]

ok

 

[timwebb]

FMU-22R datasheet pdf datenblatt - Sanken electric - Fast-Recovery Rectifier Diodes ::: ALLDATASHEET :::

1-FMU-22R
2-FMU-22R
3-FMU-22s
4-FMU-223

 

[mike49504]

Ok sorry to ask but do you know what goes in theese locations also: I believe they are the power supply drivers

Q5,Q10,Q6,Q9

And do you know what fets they are using?

 

[timwebb]

the outputs 1-4 use 9640's and. 7-9 the other use 19n20's.
and the power supply in this amp use irfz44's.

 

[timwebb]

.

 

[timwebb]

what are the two resistors in the power supply?

 

[timwebb]

u got a close up of that driver board?

 

[timwebb]

gotta extra?

 

[mike49504]

Heres a pic of the driverboard. Not sure what 2 resistors your talking about what are the board locations? I dont have an extra driverboard but i can rebuild them