Ee?prom burners [Was: Re: CUBIX/6809 updates]

[Scott Stevens]

On Tue, 13 Dec 2005 16:19:05 -0700
woodelf <bfranchuk at jetnet.ab.ca> wrote:

> Brian Wheeler wrote:
> 
> >In college we wire-wrapped a pdp-8.  The final was to repair it
> >in 2 hours after the instructor had made several changes to
> >either the wire wrappings, chip orientation (hot chips!) or PAL
> >changes.  The 2nd semester was wire-wrapping a 6809-based FLEX
> >system.
> >
> >  
> >
> Was that the CMOS pdp chip or a TTL designed PDP?
> 
> >That said, the only thing that's really kept me from building
> >machines (heh, besides time and money!) is the lack of an eprom
> >(or eeprom) burner.
> >
> >What do you guys recommend?  Are there instructions for
> >PC-driven burners online somewhere that seem reasonable?  If
> >not homebuilt, what's a reasonable price for one?
> >
> >  
> >
> Use of  a EEPROM may be a better idea as I  think there are low
> cost designs that hang off the printer port to burn a eeprom. I
> think commercial  burners  run  at
> $399+  but I can't say for sure.
> 

My Needham PB-10 EPROM burner is an ISA card with a ZIF socket on
a dongle that hangs out the back.  It uses two 6821 PIAs on the
ISA card and a number of other commonly chips (iow- it is a
durable design and 'repairable forever.'  All the programming
algorhythms and 'mechanism' of it is in the included PC software. 
I paid, I think, a little over $100 for it new.  And Needham PB-10
burners are not uncommon on the used market.  And I've run it in a
Linux box using a DOS emulator successfully in the past. (by
'punching holes' in the emulator config to allow dosemu to
directly access specific I/O ports)

> >Thanks!
> >Brian
> >
> >.
> >  
> >