Reverse polarity diiode died

[GoNavy]

lol..happens every time, was using my backup CB (cobra 29) in the tanker the other day, not my normal truck. The wires in the truck weren't marked, didn't have time to get a multi meter or tester...sssoooo I figured what the hell got a 50/50 shot right...will long story short I burnt up my reverse polarity diode and the fuse for the power cord. I know it is both because the new fuse in the power cord blowns as soon as I turn it on, and tried my cig lighter cord, same deal. I know which diode to replace, but it calls for 2.5 amp 50 piv, my radio shack only has a 3 amp 50 piv. so I have two questions....

One - I need to know from the electronic types here if this will be ok, don't want to further damage my CB.

Two - I read on another site if you put two diodes in series with the bands opposite each other, it lets you hook the radio with power off either wire and the radio will work and won't blow fuses. I don't see how that will work, but if this is true, it would be just as easy as long as I am there to put two diodes in instead of one.

 

[BushDoctor]

Diode replacement

The 3amp 50 PIV is fine Dont use the 2 diode reversed fix it will not work the chassis is case ground and not floating so U will be hating life again.

 

[gewecke]

Next time just do without the cb if you,re not sure.

n9zas

 

[davidgcet]

honestly if you are that careless you have no reason to even touch wires. you are lucky the wire was fused, you could have burnt the truck down because you could not take a few seconds to check.

 

[LtDoc]

Using two diodes back to back won't work. But, using a full wave rectifier will work. You'll still need to know how to make the right connections the first time, but after that, it won't matter.
- 'Doc

 

[GoNavy]

lmao...careless...lol...lucky there wasn't a hammer nearby...did I mention I'm a truck driver. If you can't fix it with a hammer it's an electrical problem...that is how I knew to come here, already got it fixed it's a $20 radio I wasn't too worried about it, and I got a fire extinguisher right next to my seat..I

 

[SCPD]

Again HAMS cutting people down! why not answer without making yourself feel better if you have nothing better to do get another hobby to waste your money on. davidgcget!!!!!!!!!!

 

[N4JKD]

Again HAMS cutting people down! why not answer without making yourself feel better if you have nothing better to do get another hobby to waste your money on. davidgcget!!!!!!!!!!

Who is the one here is is really obsessed with hams, cause its all you talk about...hmm

 

[davidgcet]

lol, i'm not a ham i am actually a professional 2way tech for over 20 years. i get paid to mess with radios, i don't spend my money on them.

 

[gewecke]

Again HAMS cutting people down! why not answer without making yourself feel better if you have nothing better to do get another hobby to waste your money on. davidgcget!!!!!!!!!!

You're a funny guy! :lol:


73
n9zas

 

[reedeb]

Again HAMS cutting people down! why not answer without making yourself feel better if you have nothing better to do get another hobby to waste your money on. davidgcget!!!!!!!!!!

It appears you suffer from a deep hate of HAMS [maybe in part because you yourself cannot understand simple radio] IF you'd stop this warped CB mentality MAYBE you could become a ham as well [all you need is the discipline to study and take a simple test]

I really do understand some of your frustration I've seen it in many folks who can't be what in their hearts they really desire. Instead you live in your fantasy world and hang onto your CB and live with the Tim Taylor notion [MORE POWER!!!}

 

[LtDoc]

I wish I could say I've never made a mistake like that, getting the polarity backwards! But, 'stuff' happens.

As far as the CB'er / Ham thing goes, who cares? Very easy to 'cure', don't participate that 'controversy', on either side, simple.
- 'Doc