# Part name:
Carl Zeiss Jena Jenaval / Jenapol microscope internal power supply and electrics

# Original page URL:
https://www.microscopeparts.eu/part/carl-zeiss-jena-jenaval-jenapol-microscope-internal-power-supply-and-electrics-99687

# Part manufacturer:
Carl Zeiss Jena

# Full manufacturer name:
VEB Carl Zeiss Jena DDR (former East Germany)

# Other names of this manufacturer:
- ausJena
- aus Jena
These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products.

# Belongs to category:
Power supplies (transformers)

# Description and specifications:
Internal power supply (transformer and electronics) with brightness control potentiometer for Carl Zeiss Jena Jenaval and similar microscopes.

This is a transformer assembly installed inside the microscope base. It converts an input voltage of 110–240 V into a 6 V output with a maximum power of 25 W. It is intended to power a halogen lamp house. An example of this lamp house can be found in this database under item number 99693.

This is not the power supply for the 50W/100W reflected-light lamp housing used on the Carl Zeiss Jena Jenavert. It is also not the power supply for the fluorescent lamp houses used on the Carl Zeiss Jena Jenalumar.

Compatible with the following microscope models:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenapol
- Carl Zeiss Jena Jenavert

If you only need one component from this assembly—for example the transformer, one of the electronic circuit boards or just the potentiometer used to adjust the lamp brightness—please contact us by email or through our social media channels.

This complete assembly may be useful for solving the following microscope problems, among others:
- if the microscope illumination no longer works because of a faulty power supply. This may be caused by mains voltage surges, ageing electronic components or damage resulting from incorrect modifications (for example, conversion to LED lighting)
- if the illumination works but the brightness can no longer be adjusted because the potentiometer is worn out or defective

Originally, the complete power supply assembly (transformer, electronic circuit boards and wiring) is installed inside the microscope base, and it is offered here exactly in that configuration. How can it be used?
- the electrical components can be removed and used as spare parts to repair a damaged power supply
- the complete microscope base can be transplanted to another microscope (please note that it does not include any optical components)

An interesting DIY modification is to leave the power supply in the base offered here and then place the microscope on top of that base. This effectively raises the microscope while also providing an integrated power supply for a second lamp house.

# Examples of use
- as a service component for replacement of the complete assembly
- if you need any individual part from this assembly to repair your microscope
- several example applications are described above

# Removed from microscope:
Carl Zeiss Jena Jenaval

# Also compatible with the following microscopes:
- Carl Zeiss Jena Jenaval
- Carl Zeiss Jena Jenalumar
- Carl Zeiss Jena Jenavert
- Carl Zeiss Jena Jenapol

# Names, descriptions, terms, and search contexts under which this part is searched.
- Carl Zeiss Jena Jenaval microscope repair parts
- Carl Zeiss Jena Jenaval Mikroskop Netzgerät
- Jenalumar Mikroskop Trafo und Potentiometer
- Jenapol microscope transformer
- Jenaval microscope electronic
- Jenalumar microscope electronic
- Jenaval Mikroskop Netzteil
- zasilacz Carl Zeiss Jena Jenaval
- Beleuchtung im Jenaval Mikroskop funktioniert nicht
- Netzteil im Jenapol Mikroskop defekt
- Netzteil im Jenalumar Mikroskop durchgebrannt
- illumination not working in Jenaval microscope
- Jenalumar microscope power supply failure
- burned power supply in Jenapol microscope
- defective power supply in Jenaval microscope
- Carl Zeiss Jena buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99687.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99687.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99687-carl-zeiss-jena-jenaval-jenapol-microscope-internal-power-supply-and-electrics
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99687.media.md
- Representative photo: https://www.microscopeparts.eu/photo/carl-zeiss-jena-jenaval-jenapol-microscope-internal-power-supply-and-electrics-99687-2
- Other parts from category Power supplies (transformers): https://www.microscopeparts.eu/power-supplies-transformers
- More Power supplies (transformers) removed from microscope Carl Zeiss Jena Jenaval: https://www.microscopeparts.eu/power-supplies-transformers/from/carl-zeiss-jena/jenaval
- More Power supplies (transformers) compatible with microscope Carl Zeiss Jena Jenaval: https://www.microscopeparts.eu/power-supplies-transformers/for/carl-zeiss-jena/jenaval
- More Power supplies (transformers) removed from microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/power-supplies-transformers/from/carl-zeiss-jena
- More Power supplies (transformers) compatible with microscopes Carl Zeiss Jena: https://www.microscopeparts.eu/power-supplies-transformers/for/carl-zeiss-jena

# Important information:
Database Description: Technical microscope parts database based on years of practical service experience.
Source URL: https://www.microscopeparts.eu
Author: Piotr z Polski
Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL.
Language: en-GB
Last Updated: 2026-08-06