Author Topic: HP16533A logic analyzer scope card upgrade to 16534A  (Read 1803 times)

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Offline texaspyro

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HP16533A logic analyzer scope card upgrade to 16534A
« on: March 29, 2018, 03:29:04 am »
This info was originally published in the HP logic analyzer memory upgrade thread, but to make it easier for others to find, it deserves a thread of its own (now that it has been confirmed).

Anyway, it's a simple swap of two resistors:

On 16533A:  R810=1004   R809=0  (top side, near the Actel chip)
On 16534A:  R810=0        R809=1004

 
The following users thanked this post: Drewbie

Offline Patrick.M

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Re: HP16533A logic analyzer scope card upgrade to 16534A
« Reply #1 on: April 02, 2018, 09:47:00 pm »
May I ask if you verified that the sample rate & input bandwidth was actually doubled?
It would be quite the deal for us muggels moving up in the world with simple resistor changes.
 

Offline texaspyro

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Re: HP16533A logic analyzer scope card upgrade to 16534A
« Reply #2 on: April 02, 2018, 10:12:45 pm »
May I ask if you verified that the sample rate & input bandwidth was actually doubled?
It would be quite the deal for us muggels moving up in the world with simple resistor changes.

Yes, I did some simple tests on the ones I mod'ed using a sig gen.  At the time, I did not have a decent way of testing the rise time.

If the mod does not work, it is very easy to un-mod.
 

Offline Drewbie

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Re: HP16533A logic analyzer scope card upgrade to 16534A
« Reply #3 on: June 05, 2018, 08:58:12 am »

My 16534A scope card is on the water via slow boat right now (along with a 16550A). Looking forward to it arriving so I can finally get to use my cardless 16702B.

Nice to know a 16533A can be modded. Great work!

I wonder if any of the other boards have similar simple upgrade options?

 

Offline fisafisa

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Re: HP16533A logic analyzer scope card upgrade to 16534A
« Reply #4 on: June 05, 2018, 08:40:09 pm »
I have modded 4. They run together in a 16702b.
A nice 8 channel scope  8) even if a bit too  slow.

 


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