The first band rarely discolors.
If they are part of the Zobel network, I'd guess that they are 4.7 ohms. PPI generally used 2.2 ohms in their early amps but this looks more chiese/Koean than original PPI. The Asian amps use 4.7 ohms, commonly.
Abuse or possibly the amp was oscillating for some reason.
If they are part of the Zobel network, I'd guess that they are 4.7 ohms. PPI generally used 2.2 ohms in their early amps but this looks more chiese/Koean than original PPI. The Asian amps use 4.7 ohms, commonly.
Abuse or possibly the amp was oscillating for some reason.
Thanks for the info on the value .
Would it be smart to get a higher wattage and raise it off the board somewhat so it doesn’t burn the board again?
Would it be smart to get a higher wattage and raise it off the board somewhat so it doesn’t burn the board again?
The wattage should be OK. Many amps use smaller 4.7 ohm resistors that don't overheat. They shouldn't damage the board but raising them off the board is not a problem.
It’s a 4.7 ohm 5% tolorance .
For testing purposes can I use a 5.6 ohm in the location to see if the map has anymore issues and still be close to the original tolorance ?
Only asking this since he said the amp had terrible feedback .
I don’t have the correct value on hand at the moment and only wanna use the 5.6 for testing or wouldn’t this work ?
For testing purposes can I use a 5.6 ohm in the location to see if the map has anymore issues and still be close to the original tolorance ?
Only asking this since he said the amp had terrible feedback .
I don’t have the correct value on hand at the moment and only wanna use the 5.6 for testing or wouldn’t this work ?
'feedback'? He may have meant that the amp was oscillating. This could be due to an open shield ground.
The resistor isn't that critical but if there are minor problems with the 5.6, you won't know for certain whether it's the resistor or another problem. You don't have to have the same wattage for testing. Use a 1/4w if you have them, for testing. Order the right value.
The resistor isn't that critical but if there are minor problems with the 5.6, you won't know for certain whether it's the resistor or another problem. You don't have to have the same wattage for testing. Use a 1/4w if you have them, for testing. Order the right value.