Searching \ for '[OT] ultra cheap uv EPROM eraser?' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=ultra+cheap+eprom
Search entire site for: 'ultra cheap uv EPROM eraser?'.

Exact match. Not showing close matches.
PICList Thread
'[OT] ultra cheap uv EPROM eraser?'
1998\11\29@153620 by Clem Taylor

flavicon
face
I was about to order a $40 EPROM eraser for my PIC16C77/JW based project,
but with the new PIC16F877 coming out early next year, I won't have much
use for the eraser in the near future.  So, I was wondering if someone
could recommend a cheap way to erase EPROMs, or a dirt cheap eraser?  I'm
only going to be working with two chips, one in the eraser and one in
program/debug.  The eraser I was looking at was the DATARASE IIAC, from
Walling Co., sold by DigiKey for $39.95. I was hoping to spend <$20.
Any ideas?

             Many thanks,
             Clem

1998\11\29@161017 by Vance Gloster

flavicon
face
In ancient times (during the 1980s) I used EPROM memory chips like 2732s.
For these chips the sun had enough UV to erase them if you left them
outside for a few hours (and it was sunny).  Have not yet tried this with
PIC windowed EPROM parts, but it is worth a try, and VERY cheap.

Vance Gloster                Nothing that is worth knowing can be
spam_OUTvanceTakeThisOuTspameni.net                                taught. -Oscar Wilde


{Original Message removed}

1998\11\29@163131 by Peter L. Peres

picon face
On Sun, 29 Nov 1998, Vance Gloster wrote:

> In ancient times (during the 1980s) I used EPROM memory chips like 2732s.
> For these chips the sun had enough UV to erase them if you left them
> outside for a few hours (and it was sunny).  Have not yet tried this with
> PIC windowed EPROM parts, but it is worth a try, and VERY cheap.

;) Apparently it helps a lot if you live down under (the ozone hole).

Peter

1998\11\29@212419 by Brian Striggow

flavicon
face
On Sun, 29 Nov 1998, Clem Taylor wrote:

> I was about to order a $40 EPROM eraser for my PIC16C77/JW based project,

> Walling Co., sold by DigiKey for $39.95. I was hoping to spend <$20.
>

I had this same question a month ago.  I bought a G15T8 flourescant lamp
which fits in a standard flourescant lamp fixture.  Doesn't save a lot of
money though as the lamp is ~$20.  Also you'll need to come up with
shielding, as we're definitely talking about a potentially dangerous
device.  On the upside, erase times seem to be very
low (have erased as little as 2minutes, and still pushing the envelope).

bcs

1998\11\30@153326 by Russell McMahon

picon face
Some lighting suppliers here (GTE Sylvania?) have a low wattage
(6watt?) UV tube for germicidal use shaped in a U. This is made to be
run with a ballast but can be run with a lightbulb in series instead.
very cheap and nasty (and it works). The same trick MAY work with low
wattage fluorescents - they would certainly run but may not strike
easily.

Nowadays I use a standard single tube fluorescent holder cut down in
length to fit a 20? watt UV fluro. Very rapid for the devices I use
it with (not PICs).


regards

           Russell McMahon

From: Clem Taylor <.....ctaylorKILLspamspam@spam@SRTC.COM>

>I was about to order a $40 EPROM eraser for my PIC16C77/JW based
project,
>but with the new PIC16F877 coming out early next year, I won't have
much
>use for the eraser in the near future.  So, I was wondering if
someone
>could recommend a cheap way to erase EPROMs, or a dirt cheap eraser?
I'm
>only going to be working with two chips, one in the eraser and one
in
>program/debug.  The eraser I was looking at was the DATARASE IIAC,
from
>Walling Co., sold by DigiKey for $39.95. I was hoping to spend <$20.
>Any ideas?

More... (looser matching)
- Last day of these posts
- In 1998 , 1999 only
- Today
- New search...