Ok, opened it, abit dusty inside, although not too horrible, going to clean it carefully there. The latest date code I could find is year 1998.
So here we are, few shots of it's gut, hope you will find it useful.
The top view, personally I love this kind of design that put all high voltage stuff at the rear, seen here it uses the green long stick at most right, connected to the front on/off push button.
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162728;image)
View from the rear.
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162730;image)
View from the front.
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162732;image)
The firmware, Ver 1.4, its older version compared to HighVoltage's which is at 1.6.
I am kind of worry seing the battery, I'm guessing its for the volatile calibration data ? Sigh ... another "adventurous" battery replacement task again ? For sure I can not afford to send it to calibration lab, after looking at my buying price.
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162734;image)
Analog front end section, no DC Option board like the one owned by HighVoltage. ... sigh ...
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162736;image)
The RS-232 option board, looks like it provides full isolation for the serial connections.
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162738;image)
An interesting big 22nF cap popped out in the middle analog section, wonder what is that for ? They could use a smd cap instead that big cap right ?
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162740;image)
A bodge cap, I guess its earlier version.
![](https://www.eevblog.com/forum/testgear/how-much-are-you-willing-to-pay-for-an-used-fluke-pm6306/?action=dlattach;attach=162742;image)