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 Post subject: Marking components with part number using a Sharpie
PostPosted: Nov Wed 19, 2014 4:01 pm 
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I've been working my way through a particularly miserable large chassis radio; the documentation for the radio is lacking in clarity and detail. Trying to trace the circuitry is a pain, but I've started to mark the capacitor bodies using a fine tipped Sharpie marker. Being able to quickly find capacitor "30" in the chassis is making it a lot easier to work my way through the set and to follow the schematic, stage by stage... and it will make troubleshooting a lot easier for the next guy.

Pete

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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Nov Wed 19, 2014 6:14 pm 
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Very good tip! Thanks. I've use sticky color dots from Avery to mark components in past.
Had a lot on hand so never used a marker, but a fine-point sharpie is would be easier.

Chuck

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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Nov Wed 19, 2014 8:45 pm 
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When it's finished you can remove the sharpie using denatured alcohol, IIRC.

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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Nov Thu 20, 2014 3:01 pm 
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Well, I only mark the old components which are replaced anyway.
:)

Chuck

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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Nov Thu 20, 2014 6:12 pm 
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I use silver Sharpies on black or dark components.

We used Sharpies in the test lab at Westinghouse. The ink can be removed, but usually leaves behind a slight shadow. This was actually helpful when serial numbers on large thyristors got erased "accidentally." Sharpies will leave a shadow on nickel plating also.

Rich


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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Nov Thu 20, 2014 8:57 pm 
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I've done this in sets with poor documentation, where I had to spend a lot of time locating an obscure part number buried in chassis wiring. I figured have the part number on the component would make life easier for the next guy down the line.

Pete

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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Jan Thu 01, 2015 8:29 am 
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oops double post deleted :oops:

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Last edited by Radiosmoker on Jan Thu 01, 2015 8:34 am, edited 1 time in total.

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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Jan Thu 01, 2015 8:33 am 
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Joined: Oct Thu 18, 2007 11:34 am
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Location: Port Orchard, Wa 98366
I have used Sharpies to ID components and marked pin numbers directly on the chassis, same thing with tie points etc. And will even put on the model# and date of parts changed on the chassis. I also will used stringed tags to identify things such as not working, need alignment, awaiting parts, finished etc. Date acquired or date repaired.

I went to Wal-Mart today and noticed that they had Krylon Hammer-tone in silver, gold, bronze. Maybe will use those to paint chassis like I've seen others do.

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 Post subject: Re: Marking components with part number using a Sharpie
PostPosted: Jan Sat 03, 2015 8:16 pm 
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If you ever work on 60's-70's solid state equipment, using a fine felt tip pen to mark the board position of the flat or the ECB arrangement on an old transistor before you remove it helps you remember where the old one was, especially if you have to re-arrange the replacement one due to different lead arrangements. It also will help remember which end of a cap is the negative, if the board is not marked. Isopropyl and a Q-tip will remove the pen markings from the board once you are done.


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