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This was my second project for my Intro. to Digital Systems. It doesn't really do much but I added a little display to my project, it was just my little touch. For the most part everyone else just displayed the state using two LEDs in binary. I found these cool little flat LEDs on a Yellow Tale Wine magazine ad so I adhered them behind each of the state representations. So the current state is illuminated in the diagram when the device is in that state.
This Triton Mixer Shower is set at the heart of this cylindrical exposed chrome mixer, It's a single sequential control for both flow and temperature.
This was my second project for my Intro. to Digital Systems. It doesn't really do much but I added a little display to my project, it was just my little touch. For the most part everyone else just displayed the state using two LEDs in binary. I found these cool little flat LEDs on a Yellow Tale Wine magazine ad so I adhered them behind each of the state representations. So the current state is illuminated in the diagram when the device is in that state.
This is a brochure (in French) of the original KW Praktica IV model 1959. On cover page there is a sticker of the retailer in Geneva : "Photo des Nations" - Robert Fehlmann, Place Longemalle, Genève.
The brochure was offered to me by the seller of my Praktica IV body at a set of related KDH Leipzig accessories.
February 17, 2024
69004 Lyon
France
About the Praktica IV camera :
The Praktica IV was designed by the prestigious KW (Kamera Werk Niedersedlitz) German company in Dresden on the basis of their previous Praktica FX SLR camera's. The camera was produced first under the KW name starting from June 1959 then in the Kombinat VEB Pentacon after the merge of the company in 1960.
166.800 Praktica IV and V (6 models) were produced until January 1966. Praktica IV essentially incorporates a condenser focusing screen plus a pentaprism. Due to the Praktica FX architecture the Pentaprism looks protruding from the camera body with an unusual style. It fits lenses with M42x1 mount and the mirror has no automatic return. The shutter is made of two horizontal curtains of rubberized fabric giving 1/500s to 1/2s plus B in two registers of slow speeds (1/2s to 1/10s) and high speeds (1/25s to 1/500s). The film is advanced coupled to the shutter cocking using either the right upper button or the rapid lever underneath the body.
The Praktica IV handles the "Auto" M42 lenses with the lever for automatic iris closing upon the release. Sequentially, when pressing the shutter release button, the diaphragm closes to the indicated value, the mirror is lift-off and finally the shutter is erased at the given value. If a non-auto (manual closing) M42 is used the pushing lever could be cancelled (declutched) moving a small red button to the right in the mirror chamber.
The camera camera came without lens but with a body cap and the original ever-ready leather bag with et "Ernermann tower" Pentacon logo. This model is likely the second Praktica IV essentially the same as the initial KW one with a different front plate. The camera was likely art of a collection and is completely preserved without use marks.
The KDH Leipzig (Kurt-Dieter Huffziger Foto- und Kinozubehör) accessories set included:
-A panoramic tripod head
-A set of three extension tubes M42x1)
- A big aluminum shade hood (screw-on 49mm) for wide-angle lens.
- A M42x1 metal body cap in its original box.
- An accessory shoe fitting the the Praktica IV eye piece.