Post by thread:2nd hand EPROM eraser needed

Hi: I'm getting started with the programming of pics and since many of them have eproms I will surely need an UV eraser. Does any one of you have an extra one or one you don't use anymore. If so please e-mail me with price and S/H costs. P.D.: I apologize if this is not the right place to post this message. Thanks, Pedro J. Barrios pjbst12+@pitt.edu

In message <Pine.GSO.3.95L.970115125738.7308B- spam_OUT100000TakeThisOuTunixs6.cis.pitt.edu>, Pedro J Barrios <pjbst12+@PITT.EDU> writes >Hi: > >I'm getting started with the programming of pics and since many of them >have eproms I will surely need an UV eraser. Does any one of >you have an extra one or one you don't use anymore. If so >please e-mail me with price and S/H costs. It's very easy to make one. Just buy a 12" fluorescent fitting, and swap the tube for a UV tube. I don't bother with a timer or a proper box - I just use the timer on my watch and put a cardboard box over the thing whilst it is on. With the EPROMs against the tube, they only take about 10 minutes to erase. Leon -- Leon Heller, G1HSM .....leonKILLspam@spam@lfheller.demon.co.uk Tel: +44 (0) 118 947 1424 (home) +44 (0) 1344 385556 (work)

> > In message <Pine.GSO.3.95L.970115125738.7308B- > 100000KILLspamunixs6.cis.pitt.edu>, Pedro J Barrios <pjbst12+@PITT.EDU> writes > >Hi: > > > >I'm getting started with the programming of pics and since many of them > >have eproms I will surely need an UV eraser. Does any one of > >you have an extra one or one you don't use anymore. If so > >please e-mail me with price and S/H costs. > > > It's very easy to make one. Just buy a 12" fluorescent fitting, and swap > the tube for a UV tube. I don't bother with a timer or a proper box - I > just use the timer on my watch and put a cardboard box over the thing > whilst it is on. With the EPROMs against the tube, they only take about > 10 minutes to erase. I did soething simular with a 6in tube and a $7 flourescent fixture I got from home depot. It was even battery powered so I can do erasures on the go. How ever scavenged the tube from another eraser with a bad ballast. The real question is: where can you get UV tubes from and how much do they cost? BAJ

I took the innards out of an old 12V fluro light, the kind that you can use in an automotive environment. I bought a UV tube and replaced the original tube with it. I placed some black static foam inside a small wooden drawer and place the chip on this. The tube is rested directly on the chip and is then powered by a 'Plug Pak' powersupply. This seems crude but it only cost me the price of the tube ($15) and has worked well for over 5 years. Tony Just when I thought I knew it all, I learned that I didn't.

In message <.....199701152014.PAA15396KILLspam.....gemini.cc.gatech.edu>, Byron A Jeff <EraseMEbyronspam_OUTTakeThisOuTCC.GATECH.EDU> writes {Quote hidden}>> >> In message <Pine.GSO.3.95L.970115125738.7308B- >> 100000spam_OUTunixs6.cis.pitt.edu>, Pedro J Barrios <pjbst12+@PITT.EDU> writes >> >Hi: >> > >> >I'm getting started with the programming of pics and since many of them >> >have eproms I will surely need an UV eraser. Does any one of >> >you have an extra one or one you don't use anymore. If so >> >please e-mail me with price and S/H costs. >> >> >> It's very easy to make one. Just buy a 12" fluorescent fitting, and swap >> the tube for a UV tube. I don't bother with a timer or a proper box - I >> just use the timer on my watch and put a cardboard box over the thing >> whilst it is on. With the EPROMs against the tube, they only take about >> 10 minutes to erase. > >I did soething simular with a 6in tube and a $7 flourescent fixture I got >from home depot. It was even battery powered so I can do erasures on >the go. > >How ever scavenged the tube from another eraser with a bad ballast. The >real question is: where can you get UV tubes from and how much do they >cost? A very helpful little outfit in London (Service Trading Co., 57 Bridgman Rd., Chiswick, W4 5BB. Tel: 0181 995 1560) stocks them (about #8 UK) and sells a complete kit (less case) for #15 UK. They also stock the other UV tubes for exposing PCBs. Not much use to those of you outside the UK, unfortunately. Leon -- Leon Heller, G1HSM @spam@leonKILLspamlfheller.demon.co.uk Tel: +44 (0) 118 947 1424 (home) +44 (0) 1344 385556 (work)