See attached schematic (ignore highlights). I'm interested in the resistors that may cause noise in the phono circuit, which I think include R64, R73, R70/71. I've alas attached a picture of the board where I've started labeling resistors. There seem to be two main sizes, one around 8mm and one around 12mm (or so, my measurement technique was pretty vague).
Mostly I'm just concerned about getting the right size parts so they fit nicely in the spot. I suppose I could just measure, but I thought, if there was an easy way to work out the rated power, that might make it easier.
Mostly I'm just concerned about getting the right size parts so they fit nicely in the spot. I suppose I could just measure, but I thought, if there was an easy way to work out the rated power, that might make it easier.
Attachments
Those parts will not dissipate much power. Also, different brands of the same power rating can differ in size.
Measure the part mounting holes center to center spacing. To measure the spacing accurately, use a 1" long resistor lead offcut,
and bend it to drop right into the two holes.Then take it out and measure carefully.
Subtract a total of 0.2" (or 5mm) to allow for not cracking the end coating during lead bending, which will cause real problems,
and that is the longest resistor body length that will fit properly. When stuffing, use a proper lead bender to form the resistor leads.
Measure the part mounting holes center to center spacing. To measure the spacing accurately, use a 1" long resistor lead offcut,
and bend it to drop right into the two holes.Then take it out and measure carefully.
Subtract a total of 0.2" (or 5mm) to allow for not cracking the end coating during lead bending, which will cause real problems,
and that is the longest resistor body length that will fit properly. When stuffing, use a proper lead bender to form the resistor leads.