[time-nuts] HP 5370B ROM images

Didier Juges didier at cox.net
Tue Oct 27 02:04:58 UTC 2009

I only have two 5370As, but I have a programmer old enough that it might
support your older PROMs. If you have a problem burning them, let me know
and I'll look closer.

Didier KO4BB 

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Joe Geller
> Sent: Monday, October 26, 2009 6:16 PM
> To: time-nuts at febo.com
> Subject: [time-nuts] HP 5370B ROM images
> 	I thought I would contribute a 5370B ROM version and 
> possibly add a later ROM image to the collection.  I should 
> have left it to the experts.  I am afraid that all I 
> accomplished was to brick my 5370B: Serial number 2438A 
> 01154, Board 05370-60109, U3.  U3 is a plastic chip with no 
> window, so probably it was an OTP (one time programmable).  I 
> think this was before hp went over to EEPROMs.
> U3 markings:
> 	AMI 8449HS
> 	1818-3373
> 	No urgency; any help most appreciated.
> Regards,
> Joe Geller
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