Vintage Fold-Out Anatomical Diagrams

Manakins - femaleI stopped at an estate sale over the weekend that was taking place just down the street from where I live. I didn’t have anything in particular I wanted to find, so I waited until it was nearly over to see if I could strike some deals. I went in about two hours before it was set to close, and I immediately spotted these vintage anatomical charts being offered for $10. I told the woman it was just weird enough for me to want to buy but… and before I could finish she offered to make it $5 and I was sold. I didn’t even get a good look at them until I got home, but when I did I quickly found it was a great purchase.

Manakins - maleThese charts were originally a supplement to The New Modern Home Physician, which from the little bit I’ve gathered was an encyclopedic home medical reference first offered in 1934 (then called The Modern Home Physician.) I’m not sure when these charts were produced; one listing I saw for them indicated the 1950’s, but I haven’t found a solid reference to back that up. The envelope refers to the charts as “Manakins”, and they feature different layers of the human anatomy that are able to be removed or folded out to reveal different parts of the body. There is one male and one female. Some of the organs fold out individually to reveal other organ that are otherwise obstructed. All in all, they’re very interesting and beautiful charts with a great vintage charm.

Manakins - UterusOne thing I find interesting is how the sexual organs have been censored, and when I say censored, I mean they’re completely ignored. The male is illustrated with a towel wrapped around his waist, and none of his sexual organs are shown, not even in the internal diagrams. The female is shown fully naked, however she has no vulva, and again, none of the sexual organs are shown in any of the internal diagrams. Despite all of this, the female is pregnant, as her uterus contains a fetus (how she became pregnant then is unclear.) I find it odd that such otherwise wonderfully detailed diagrams do not include such an important aspect of our human anatomy, but given the probable era(s) these were produced and the fact that they were targeted at the home market rather then professionals, it may have been considered the proper thing to do then. To me, it seems rather prudish, but then nowadays all of this information is available in explicit detail on the Internet.

I’ve got more photos/scans of the diagrams after the break, and higher-res copies on flickr. If you know anything more about these, please share! I’ve ordered a copy of the book as it sounds interesting as well.

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Vintage Stansi Ammeter

Vintage Stansi AmmeterThis was a random find on Ebay, just something I came across while looking for something else.  I really liked the look of it, and I needed something that could measure large currents anyways, so I bought it.  I have a Sparkfun digital multimeter, which is a steal at $15 and serves most of my needs as a hobbyist, but it’s best used for low current measurements, under 200ma.  It can do up to 10 amps, but only for 10 seconds.  It’s a useful feature, but sometimes I want to watch a circuit’s current for an extended period of time.  I don’t want to buy an expensive DMM when the Sparkfun unit serves 98% of my needs, so an analog ammeter seemed like a good compromise.  It may not be as accurate as a DMM, but it’s good enough for my needs.

Stansi meter dissasembledI don’t know much about the meter, other than it was made by a company called Stansi located in Chicago, and it has three ranges of measurement: 0-1.5 amps, 0-3 amps and 0-30 amps.  After receiving the meter, I tried it out, and found that the measurements it was giving all seemed to be significantly off.  I was disappointed; I liked the look of it, but I didn’t buy it to be an antique, I bought it to actually use!  I noticed that the connections on the underside of the meter were all corroded quite a bit, so I took all of the connections apart, cleaned all of the posts, washers, nuts and other bits and pieces with steel wool, and put everything back together.  After testing it some more, it seems that all it needed was a good cleaning, the measurements are all very close now when compared to the DMM.  Success!

Stansi meter measuring circuitIf you’re hobbyist like me, and need to measure large currents but don’t want to spend the money on an expensive DMM that you don’t really need, then an analog ammeter may be the solution.  A digital display certainly has significant advantages in terms of speed an accuracy, but if you buy a large meter, it should be easy to get a “close enough” measurement.  In the photo to the left you can see the Stansi meter connected to a BigClive.com RGB controller, and it’s clear that it’s pulling approximately 320ma of current.  It may not be as quick or accurate as a DMM, but there’s something about watching that needle bounce around that an LCD display can’t replicate, and for $20 and an hour of my time, it’s a good value.  I expect to get lots of use out of this meter.