...last update 30-Jan-2026

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Arduino & TotemMaker...

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Supplements for Kit Manuals

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Power Supply Circuits

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Counter, Divider & Timer Circuits

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Light & Sound Effect Circuits

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Laser Control Circuits

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Motor Control Circuits

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Relay + Relay Module Circuits

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Fischertechnik(R) Construction

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ELV(R) Breadboard Kits

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Simple Solder Electronic Kits

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Retro-Circuits 01
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Free Download - Section
Min_UE-Sample_20220204A Min_UE-Sample_20220204

25 selectet Experiments out of more than 2500 Worksheets in 50 e-Books

FREE - DOWNLOAD

8.7 MB
_klein-fun_with_electronics_HP

...more free drawings and electronic experiments

FREE - DOWNLOAD

395 MB
DY_E-G

...2 E-books
DY_G-E

...more than 96,000 Translations / Book

Technical Dictionary - English / German  +  German / English

FREE - DOWNLOAD

UE_Dictionary_F01.zip  =  6.0 MB
ConCalc2003e

FREE - DOWNLOAD

UE_ConCalc_E_F02.zip  =  1.7 MB

Various Technical Brochures  -  Five E-Book Bundle

1. AC Motor NEMA & IEC Basics.pdf

2. Drill Bits, Taps & Dies.pdf

3. Equipotential Ground Bonding Connections.pdf

4. PowerConditioning Basics.pdf

5. some SAT & LNB secrets.pdf

FREE - DOWNLOAD

UE_FiveTechBooks_E_F03.zip  =  2.1 MB

Udo’s Klassiker  -  Fünf “WIN” Programme in Deutsch   (Deutsch ...in German only!)

1. Digitaltechnik ...interaktiv

2. Elektrotechnik ...interaktiv

3. Formelsammlung ...interaktiv

4. Messtechnik ...interaktiv

5. Kreuzstich mit Pfiff

FREE - DOWNLOAD

UE_Udos-Klassik_D_F04.zip  =  43.2 MB
Retro-Circuits 05

Animal Shelter Building Instruction   (...English)

FREE - DOWNLOAD

UE_AnimalShelter_E_F05.zip  =  2.5 MB

Weidehütte Bauanleitung   (Deutsch) ...in German

FREE - DOWNLOAD

UE_Weidehütte_D_F05.zip  =  265 kB
Retro-Circuits 05

...(c) Udo Elger - Kuhlenkamp 22 - 48455 Bad Bentheim - Germany - info@retro-circuits.com.