Consumable Supplies

Injectorall - Board Material, Chemicals, Etc.

GC Electronics - Board Material, Chemicals, General Electronics.

Mouser Electronics - Distributor (GC Electronics), Ammonium Persulphate Etchant.

Consumables

Semi Transparent Paper

Photocopier grade transparancy paper can be used in a laser printer, but the toner doesn't adhere to the plastic surface very well. A velum paper accepts the toner as well as ordinary paper but requires a approx double the exposure time.

• Velum Paper info
• Laser Printer Transparancy info

Copper Clad Board Material with Photoresist

Using these boards is much easier than using photoresist to coat bare boards, but they cost more than bare board and the photoresist. Injectorall and GC Electronics offer these boards. Based on recent experience, I would recommend Injectorall over GC.

Copper Clad Board Material (bare)

Often times bare copper clad board material can be found at surplus shops, which it will be much cheaper. It can also be purchased from Injectorall, GC, and a variety of other sources.

Photoresist

GC Electronics makes a spray-on protoresist. Until about 1991 this chemical gave me very good results, but I suspect GC Electronics made some change and it stopeed working well. It can be ordered through Mouser Electronics as well as directly from GC.

Developer Solution

Etching Solution (acid)

Ferric Chloride is widely available and even Radio Shack carries it in some stores. Do not use ferric chloride. Mouser (used to) offer Ammonium Persulphate, but apparantly they have not discontinued it. Injectorall offers Sodium Persulphate which come as crystals which you add with water.

Drill Bits

Tin Plating Solution

For many years GC Electronics offered a two part liquid and powder product which would tin-plate boards. They have discontinued this product. Injectorall feels this chemical is dangerous and they don't want to sell it. --add recipe for tin plating solution.