9W2ICE harmonic's naming ceremony

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To all who are invited, this Sunday, 28th 06 2009. From 1200 to 1500.
Click TO HERE and enter your address.

Those that are not invited, can hold a demonstration outside his house.... :-)

If 9M2RKK is up i will be on the air giving directions,
otherwise switch to V40, all this if Bob can find an antenna...

Protecting your PCB

A completely cleaned PCB.
This will teach you how to protect you PCB foil pattern from oxidation. I am using a unetched PCB for demonstration. You would be doing this AFTER you etched you PCB.


















I used a cotton bud, you could get an appropriate brush to do the same. The trick is using clear varnish to the tracks BEFORE soldering. Here i am applying varnish to to top part of the PCB.


















This is what it looks like after the varnish is applied. It takes about 2 to 4 hours for the varnish to completely dry. This depends on how concentrate your varnish is. You can mix thinner in your varnish to dilute it if it takes too long. Also i do not recommend a very thick coat.

















This is what the PCB looks like after a few days. Oxidation set in. Notice the part of PCB varnished is not affected.




















This is the best part. Varnish not only protects your PCB, it also acts as flux which you don't have to wash off.



















Top view of the solder joint. It perfect. So it protects your PCB and functions as flux. You can solder while the varnish is not yet dry, but it tends to be sticky. So take care. Oh...if you don't want to get high while varnishing, use appropriate protection.















73.

Spotted!

Went to my friends house in Klang, Amazing View apartments, Spotted this jelopy in one of the parking lots.
Also left behind my name card on the windscreen.

Spotted!

Spotted Alan's car near Warisan Maju, but no sign of Alan. Maybe he was across the street having a Tango Tango with some friends.

Spotted!

His name is H. A. Rahim and uses 9W2XYL callsign, was spotted parked outside PWTC. Probably waiting for fare. :) I approached him, introduced myself to him. Friendly chap. Satu hari nanti kita roundtable.