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HP 53310A modulation domain analyzer memory upgrade


 

Hi Folks,
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On the hunt for a source for the RAM chips to expand the memory in my 53310A
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The usual Googling around has yet to yield 4 pieces from a single source.
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Do any of you have 4 that you would be willing to part with..?

Candidates are: Cypress CY7C194-25PC, Hitachi HM6708P-25, ?Motorola MCM6208P25, ?or equivalent.
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Located ?Louisville, KY 40206 USA
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Hi Dave,
I sent you a direct message, please check your inbox.
Ozan
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On Mon, Mar 31, 2025 at 02:43 PM, Dave Wright wrote:

Hi Folks,
?
On the hunt for a source for the RAM chips to expand the memory in my 53310A
?
The usual Googling around has yet to yield 4 pieces from a single source.
?
Do any of you have 4 that you would be willing to part with..?

Candidates are: Cypress CY7C194-25PC, Hitachi HM6708P-25, ?Motorola MCM6208P25, ?or equivalent.
?
Located ?Louisville, KY 40206 USA
?


 

Thanks Ozan..!
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Will report back here on the transition from SOJ to DIP for those that may follow...


 

After a set from Aliexpress that didn't work, I got some from an eBay vendor I've found reliable (his stocks are all old, before the dodgy cloning started).?
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I don't remember exactly what I bought but he has and I'd expect them to be good.
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