Hi all gurus or other helpful souls of this beloved forum
I have a question regarding pcb mounted transistors without heatsink.
As you can see in this picture there are some heat damage on the board, (amplifier probably took some abuse) my questions are; would it be better to leave the "legs" a bit longer to get more air between the transistor and the board? or is it better to just mount a heatsink down at the board?
Will the transistor legs "bend" by the heat if leaved too long, and what would be too long?
And
This resistor is a 4,7 ohm 1/4 watt, 5% I have 8 of them damaged (pic)
Now I found some new ones on the www which claims to be the same specs, but they do not have the BLACK stripe, other stripes are the same, Im a bit confused by this.
Can they still be 4,7 ohms?
Best regards
KO
I have a question regarding pcb mounted transistors without heatsink.
As you can see in this picture there are some heat damage on the board, (amplifier probably took some abuse) my questions are; would it be better to leave the "legs" a bit longer to get more air between the transistor and the board? or is it better to just mount a heatsink down at the board?
Will the transistor legs "bend" by the heat if leaved too long, and what would be too long?
And
This resistor is a 4,7 ohm 1/4 watt, 5% I have 8 of them damaged (pic)
Now I found some new ones on the www which claims to be the same specs, but they do not have the BLACK stripe, other stripes are the same, Im a bit confused by this.
Can they still be 4,7 ohms?
Best regards
KO
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