[3D photos of my Hell 72c "GL" are here, of my Hell-80 here, and of an NVA Hellschreiber is here]
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Most recent page updates:
2-June-2010: added 3D photos of all partly disassembled tube, and of cross-section.
5-Apr-2010: added 3D of RV12P4000 tubes.
6-Mar-2010: added 3Ds of inside of Feld-Hell electronics box; click on any 3D photo now shows full size image).
17-Dec-2009: added 3D of Feld-Hell character drum by itself.
19-Oct-2009: added 3D's of gear-train.
©2007-2010 F. Dörenberg. All rights reserved worldwide. No part of this publication may be used without permission from the author. It has taken considerable effort to create these pages. If you "borrow" content from them, at least reference the source.
My photos have been down-sampled. Full size,
print quality, jpg files are available from
Frank.
The stereo-pairs below are scaled for a display setting of 1024x768, such that
they have the standard 3½x7 inch (≈9x18 cm) size on the screen. For proper
viewing with different display settings, you may have to download the image
files and use an appropriate zoom setting in your favorite image viewing
program.
The stereo-pairs below have not been made with my Stereo Realist stereoscopic camera, but by sequentially taking two pictures with my digital snapshot camera (laterally displaced ≈ 6.3 cm (2½") between the left & right shot). I have also taken 3D pictures with the Stereo Realist, but they still need to be processed by a special lab. If you are not a practitioner of "free viewing" of stereo pairs, you will need a viewer. I have converted the stereo-pair photos into red/green anaglyphic 3D images, with StereoMaker (freeware). You'll need red/green glasses to view them (the close-up of the printer mechanism really came out great, even if I say so myself). A number of red/green anaglyphic photos of my Hellschreiber T typ.- 72c "GL" are here. I have made hundreds of stereoscopic photos over the years; a small selection is on my stereoscopic / 3D page.
I am not aware of the existence of any other 3D photos (historical or new, like mine) of Hellschreibers. If you know of any, please let me know.
Classical "Holmes" viewer
Lorgnette viewers
Anaglyphic glasses
This is what's inside the gearbox of
the Feld-Hell machine. Pin-coupling to the motor-generator is at the top. Large
gear (top right) connects to the character drum.
To take these photos, I had to suspend
the shafts by marionette-strings (monofilament fishing line); see the jig below.
The gearbox, after
removal of the motor-generator, character drum, and printer box
Top of the
motor-generator - speed dial and regulator cap removed
Top of the motor-generator -
contact plate removed, centrifugal weight and
lever visible
Top of the motor-generator -
centrifugal regulator removed, ball bearing visible
The centrifugal
speed regulator disk
The generator-motor housing opened - rotor removed
The
character drum and keyboard (motor-generator
removed)
The printer box of the Feld-Hell
The printer box of
the Feld-Hell
The printer box of
the Feld-Hell
Stereoscopic image
of two RV12P4000 tubes
(click on image to get full size)
RV12P4000 tube with
knob removed - capacitor between anode & ground visible
(click on image to get full size)
Top-view of cross-section of an RV12P4000 tube
(click on image to get full size)
Another top-view of cross-section of an RV12P4000 tube
(click on image to get full size)
One more top-view of cross-section of an RV12P4000 tube
(click on image to get
full size)
The
Amplifier and Interconnect Unit
Close-up of my homebuilt Hell printer
Above 3D photos ©2008 F. Dörenberg N4SPP
©2004-2010 F. Dörenberg N4SPP
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