Ok, I checked VT340 schematics.  Ok, I  need two ROM dumps:

 

512Kx8 2804 EPROM on E80 (firmware code)

32Kx8 27256 UVEPROM on E49 (character generator)

 

Yes, All VT300 series uses 8031 processor with DC7051 video controller and 2681 
DUART interface.

 

Thanks,

Tim

 

From: Cory Smelosky [mailto:b...@gewt.net] 
Sent: Saturday, April 8, 2017 8:27 PM
To: Tim Stark <fswo...@verizon.net>
Cc: malc...@avitech.com.au; simh@trailing-edge.com
Subject: Re: [Simh] DEC VT emulators on MAME

 

No VT125 board - just VT340 stuff.

Sent from my iPhone


On Apr 8, 2017, at 16:41, Tim Stark <fswo...@verizon.net 
<mailto:fswo...@verizon.net> > wrote:

Yes, I am interested in that. Please let me know when you made ROM dumps from 
VT340 boards.

 

Do you still have VT125 board as well?

 

Thanks,

Tim

 

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