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I need to replace fuse resistors in my Sansui Au317,
Should I try to form the resistor leads so there is
airspace between the resistor and the board.
I have looked at a couple of Diy articles, and this was not mentioned.
less heat conduction off of the board, resulting in longer resistor life?....
thanks for info...
Follow Ups:
thanks for input,
I am leaning to the spacer fix,
Here is to 60's & 70's equipment lasting
for another 50 years.....
my system is from thrift stores years ago,
with less than $400 invested initially.
maybe that amount spent on upgrades since the
early 80's.
<$1000 total....
Take that stereopile
Edits: 09/23/22
and they are usually short, 1/4" on each lead up to the body of the resistor. I assume the goal is to stand the resistor off the board. Some can run fairly hot and the standoffs will keep the resistor from burning up the pc board over time
when possible I usually have resistors off the board for air circulation around the entire resistor. Probably because I've seen burn marks on the PC board and underneath resistors. If you are in the correct wattage rating there should NOT be a problem.
Anybody else?
If I were to do resistor-on-board work? I'd use a removeable spacer UNDER the resistor to provide good stability while soldering while removing the spacer would admit air for cooling......
I've seen cheap boards turn to charcoal and become conductive. I've had to install 'dummy' traces to do emergency repairs for stuff which was NOT available. In some cases, I'd have like to have a board making kit available and remake some of those boards.
This was for semiconductor manufacturing equipment, not audio.....
Too much is never enough
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