Homebrew PCBs

>From: "John Craddock" <John.Craddock@...>
>Reply-To: Homebrew_PCBs@yahoogroups.com
>To: <Homebrew_PCBs@yahoogroups.com>
>Subject: RE: [Homebrew_PCBs] Narrowest tracks?
>Date: Mon, 26 May 2003 23:30:55 +1000
>
>Hello all,
>I presume from the replies so far, all respondents use photo-resists. I 
>have these questions.
>
>What brand?
>What type? liquid or dry film

I buy my PCB material ready coated with positive resist, supplied by Mega 
Electronics, UK. I think it is roller applied, according to the description 
- 5 micron thick - then high-temp. cured.

>What polarity? positive or negative.

Positive. I develop in NaOH.

Leon
--
Leon Heller, G1HSM Tel: +44 1424 423947
Email:leon_heller@...
My web page: http://www.geocities.com/leon_heller

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