<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
</head>
<body>
<p>Hi,</p>
<p>The Willem programmer was an open-source DIY design that enjoyed
many iterations and still forms the basis of a lot of the cheap
Far Eastern programmers.<br>
This one was built by my own fair hand using a commercial PCB
(version 3.1 ATH, if you are Googling) and I used it for many
years before upgrading.<br>
Plenty of information is still available online including the
driver software.</p>
<p>Settings are made manually using jumpers and DIP switches, which
means you need to be careful but also makes it a very versatile
device, capable of programming all sorts of things (EPROM, EEPROM,
FLASH, micros, etc.).<br>
Communication with the host PC is via the old-school parallel port
(and it needs to be a "real" one).</p>
<p>This one comes with a couple of adaptors that are particularly
useful for vintage synths:</p>
<p>- Adaptor for 2716 and 2732 EPROMs. The Willem handles larger
EPROMs directly but needs a pin adaptor for these. This is what I
used most.</p>
<p>- Adaptor for reading and writing Intel MCS-48 microcontrollers.
This will read mask-ROM 8048/49s as found in a lot of early Roland
synths and program the EPROM equivalents (8748/49).</p>
<p><img moz-do-not-send="false"
src="cid:part1.03E13D46.2D92F67E@bendentech.co.uk" alt="Willem
programmer" width="935" height="561"></p>
<p>Overall, a very useful device if you are willing to get a bit
"hands-on" - which hopefully everyone here is :-)<br>
</p>
<p>Asking GBP25 plus postage cost to wherever you are. <br>
</p>
<p>Please get in touch with any interest or questions! </p>
<p>Cheers,</p>
Steve L.<br>
Benden Sound Technology<br>
</body>
</html>