- Handbook of Simplified Electrical Wiring DesignJohn D. Lenk
- Simplified design of linear power suppliesJohn D. Lenk
- Handbook of modern solid-state amplifiersJohn D. Lenk
- Handbook of basic electronic troubleshootingJohn D. Lenk
- Handbook of advanced troubleshootingJohn D. Lenk
- Handbook of electronic circuit designsJohn D. Lenk
- Handbook of simplified solid state circuit designJohn D. Lenk
- Understanding Electronic SchematicsJohn D. Lenk
- Video handbookJohn D. Lenk
- Complete guide to videocassette recorder operation and servicingJohn D. Lenk
- Computers for techniciansJohn D. Lenk
- Handbook of practical solid-state troubleshootingJohn D. Lenk
- Handbook of oscilloscopesJohn D. Lenk
- McGraw-Hill Circuit Encyclopedia and Troubleshooting Guide, Volume 3John D. Lenk
- Handbook of practical electronic tests and measurementsJohn D. Lenk
- Handbook of electronic test proceduresJohn D. Lenk
- Handbook of digital electronicsJohn D. Lenk
- Logic designer's manualJohn D. Lenk
- Simplified design of data convertersJohn D. Lenk
- Simpl Design Linear Power SuppliesJohn D. Lenk
