Novice Resistor Compatibility Question

Good Morning Guys -

I work in IT and am working from home today where I am needing to build a DVI "Dummy" adapter. I've built one before and it's extremely easy as all you need is a DVI / VGA adapter and 3 resistors.


The only problem is that the only resistors I have at home right now are 1 Mohm 1/2 Watt & 1 mOhm 1/4 Watt which are left over from a prior project as well as a variety of capacitors. The instructions that I've seen from a variety of sites say that a specific ohm resistor don't matter but that anything between 50 and 150 ohm should be ok.

My Question
So - not knowing much if anything about resistors, is there I way I could use what I currently have (individually or combined) to build this or would it potentially cause harm to my equipment? Yes, I need one ASAP and am an hour away from closest Radio Shack, but don't want to sacrifice my $300 video card

If not suggested / will not work, I have TONS of electronics & parts in storage here. What are some fairly common components which I might examine and be able to savage what I need?

Thanks!!

You already gave the answer "anything between 50 and 150 ohm should be ok". Your resistor values are useless.

FvM said:

You already gave the answer "anything between 50 and 150 ohm should be ok". Your resistor values are useless.

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OK, thanks. Don't (yet) know much about resistors so didn't know if what I had could be combined or used with other things to get what was needed. Just ordered variety pack from Amazon.

Thanks

bzowk said:

OK, thanks. Don't (yet) know much about resistors so didn't know if what I had could be combined or used with other things to get what was needed.

Click to expand...

This might help you understand the calculations with resistors.
https://www.wikihow.com/Calculate-Series-and-Parallel-Resistance

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BTW, you could use 10000 parallel 1 Mohm resistors to reach 100 ohms, but that pretty much repeats FvM's statement, that your resistors values are useless.

The good news is real live 75 Ohm 0.25W resistors cost about 1c each and are easily available from most component suppliers (Radio Shack etc). If you can't get 75 Ohm, use two 150 Ohm resistors in parallel, that gives 150/2 = 75 Ohms but 150 Ohm resistors are probably more plentiful.

Brian.