John, the Datarase II is made by the Walling Co. They have two models one
of which adds a 2-8 minute timer. I find it typically takes around 10-15
mins to erase PICs. I have been able to use shorter times but I use 15 mins
to be sure. It erases EPROMs in around 3 mins. It comes with an AC adaptor
and a `little' owner's manual that has a very good explanation of EPROMs and
UV radiation. I'm not sure about shipping costs but you can order it in the
USA from:

      Digikey: 800-344-4539   http://www.digikey.com
               Datarase II without timer. P/N ER2. $39.95
               Datarase II with timer.    P/N ER3. $49.95

   - Tom

At 08:11 PM 3/10/98 +0000, John Midgley wrote:
>Robin wrote (Actually, I'm Tom ;-)
>
>>for the same price
>>and effort folks put into building their own erasers, you could buy a
>>commercial unit such as the Datarase II for around $40 or $50 with a timer.
>
[snip]
>However (you're not supposed to start sentences with 'however', are you?);
>I'd cheerfully pay 25 or 30GBP for this Datarase thing, but over here in
>Merrie England, people want 50GBP ($80-odd). Rather less attractive at
>that price? Especially if an amateur-capable bodge can be done for
>20GBP.
>
>Having said that, if any English PICers know where I can find a UV eraser
>at a realistic price, please say!
>
>Regards
>
>John M