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|#53212 - RE: ALE---indicator...failed MPU|
Responding to: Stanley Lio's previous message
do you have postal services there?
if so you can get any thing you want. i remember i was making PCBs using Enamel paints and hand drawing the tracks and using vario boards for grid to drill component size holes 8-10 years ago. then i shfted to heat tranfer method and now i'm using photo transfer method and screen printing method. i dont think you dont have these resources there. take usage of the resources around.
can you tell me what isn't avalable.
Copper clad boards? (get them by postal facility)
eatchants? (what eatchant are you using)
there are various echants like
1. Ammonium Persulphate solution
2. Ferric Chloride solution (75%)
3. salt + Copper sulphate
4. Hydrogen peroxide + hydrochloric Acid
(1 part + 1part + 4 parts water)
Eatch resistant inks?
you can use
1. Enamel Paints
2. Neil Polishes
3. screen printin PVC Gloss Ink
Pump action drills are available for just $0.50.
what is your problem please explain.