Chuck in VA Posted December 30, 2014 Share Posted December 30, 2014 Well, I was making good progress putting a CTB16KD together last night, when I realized I had just soldered the R2 resistor in with the dot on the left, not right side . Can anyone tell me how to get this back off without damaging anything else? Thanks! Link to comment Share on other sites More sharing options...
Denny Posted December 30, 2014 Share Posted December 30, 2014 Been a couple years since I put a kit together, but I THINK that it doesn't make any difference on the resistor networks. I think it may even state that somewhere in the instructions. Of course, I may be confusing this with one of the other many kits I have assembled. Regarding removal, if you don't have anything to wick up the solder when you reheat it, try using a can of that compressed gas used to clean electronics. Heat the solder and blow it away carefully with the compressed air. It will splatter everywhere, so be careful. Takes a while, but eventually, you can get all the solder off and work the component free. Link to comment Share on other sites More sharing options...
wbaker4 Posted December 30, 2014 Share Posted December 30, 2014 You should be okay. Each pack is actually 4 resistors. Pin 1-2, 3-4, 5-6, 7-8. If the pack had 9 pins, then you would have take them out and reverse. Invest in a solder sucker (vacuum) (sold-a-pult) when building kits. Makes removing parts easier. Link to comment Share on other sites More sharing options...
Max-Paul Posted December 30, 2014 Share Posted December 30, 2014 I also use one of them solder suckers. Even when you do a good job of getting 98% of the solder out. There will be a thin film left between the hole and edge of the leads. I then will rock the pack back and forth just a few times. Dont have to move it much to make it work. Might take a small flat blade screwdriver and do the same with the leads on the bottom of the board. Makes pulling the component so much easier to pull loose from the board. Link to comment Share on other sites More sharing options...
Grinch Posted December 30, 2014 Share Posted December 30, 2014 Resisters are not directional sensitive, they work the same way no matter which way they are in the circuit Link to comment Share on other sites More sharing options...
a31ford Posted December 31, 2014 Share Posted December 31, 2014 Resisters are not directional sensitive, they work the same way no matter which way they are in the circuit Correct on that account, however, there are two types of resistor networks.... one type "A" with each resistor has it's own two pins in the network (I'm sure that R2 is this way). AND THE OTHER TYPE..... "B" where ONE of the pins (generally the one with the dot) is COMMON to ALL the resistors in the nework, this tyoe of unit is generally used as a "pull up" resistor for IC circuits for un-used pins).(as WBaker has said about the odd number of pins, this is the "tell tale" that it is a type "B" resistor network). Greg 1 Link to comment Share on other sites More sharing options...
Chuck in VA Posted January 12, 2015 Author Share Posted January 12, 2015 Thanks everyone for the information and advice. Solder sucker is on the way and we'll see where that and the other suggestions get me ! Link to comment Share on other sites More sharing options...
Max-Paul Posted January 12, 2015 Share Posted January 12, 2015 Resisters are not directional sensitive, they work the same way no matter which way they are in the circuitTrue, but not all resistor networks are reversible. But as someone else has pointed out. The ones LOR uses are reversible. But there is one resistor network that is a different value. So this one pack needs to be identified and insured that it is placed in the one socket. Link to comment Share on other sites More sharing options...
bbass101 Posted November 14, 2015 Share Posted November 14, 2015 Solder suckers are way to go removing components. Link to comment Share on other sites More sharing options...
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