Problems with original equipment fuses and fuse holders
Posted: Fri May 26, 2017 7:28 pm
Not a new problem, but it came up on the forum recently and is worthy of a "sticky" post:
This is a photo of my original fuse before I replaced it and the low quality original fuseholder with something better:
The low quality fuse holders that were shipped with many early radios can make a bad connection to the fuse and cause resistive heating at that connection, thereby damaging the fuse and causing major voltage drops. In my case it was causing funky PureSignal operation. Another typical symptom is poor output power on 6M. Low voltage at your power connector at the back of the radio will cause all kinds of strange problems. Check your fuse and fuseholder and replace both if necessary. Check your power supply, and check your voltage with a voltmeter right at the connector on the radio (you can fit the probes into the backshell pretty easily.
73!
Scott
This is a photo of my original fuse before I replaced it and the low quality original fuseholder with something better:
The low quality fuse holders that were shipped with many early radios can make a bad connection to the fuse and cause resistive heating at that connection, thereby damaging the fuse and causing major voltage drops. In my case it was causing funky PureSignal operation. Another typical symptom is poor output power on 6M. Low voltage at your power connector at the back of the radio will cause all kinds of strange problems. Check your fuse and fuseholder and replace both if necessary. Check your power supply, and check your voltage with a voltmeter right at the connector on the radio (you can fit the probes into the backshell pretty easily.
73!
Scott