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Author Topic: HP 53131A /132 A /181A display color  (Read 1304 times)

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Offline kj7eTopic starter

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HP 53131A /132 A /181A display color
« on: March 05, 2018, 03:32:00 am »
The HP VFD displays of the 90's where of a green tint, but it seems the more recent VFD's have a more blue tint.  Was there a change in the display color at some point or is this just a camera color balance thing?

Examples;
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Offline HighVoltage

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Re: HP 53131A /132 A /181A display color
« Reply #1 on: March 05, 2018, 03:11:42 pm »
When the VFD's gets older, they are drifting in to the green color direction.
Also, a new VFD is brighter and appears to be more blue on the new windows.
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Offline kj7eTopic starter

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Re: HP 53131A /132 A /181A display color
« Reply #2 on: March 06, 2018, 06:30:16 am »
Thanks HV, my new to me 53132A arrived today and the display is bright and bluish.  I lucked out and it also has the later firmware which includes the ',' to separate the groups of three digits. 
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Offline kj7eTopic starter

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Re: HP 53131A /132 A /181A display color
« Reply #3 on: March 06, 2018, 07:34:21 pm »
In the eBay ad photos, it looked a bit rough and the display was questionable.





Amazing what some careful cleaning will do;

« Last Edit: March 06, 2018, 07:39:13 pm by kj7e »
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Offline HighVoltage

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Re: HP 53131A /132 A /181A display color
« Reply #4 on: March 06, 2018, 09:54:18 pm »
You got very lucky!
Congratulations!

And you cleaned it well, looks good
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