LTE Cat 1bis Retrofit of the Nokia 2190 Within the Original ABS Enclosure
A custom LTE Cat 1bis board, a VoLTE baseband, and an 18650 cell fitted entirely inside an unmodified Nokia 2190, retaining its keypad, membrane, and 1.3-inch window.
Daeryeok Versuchswerke · ARCHIV FÜR TECHNISCHE GRENZFÄLLE
Theoretically Works: Engineering Working Papers
Independent engineering working papers from Daeryeok Versuchswerke on a Nokia LTE retrofit, high-power e-mobility, battery systems, acoustics, and thermal design.
Research Block I: CYC X1 Pro Integration and Dual-Stage Energy Architecture
A 5,000 W CYC X1 Pro Gen 4 mid-drive and dual-source 72 V energy system integrated into a 2024 Cannondale Habit hardtail, targeting 75 km/h and 250 N·m.
Research Block II: High-SPL Acoustic Projection and Tactile Resonance
A tri-tiered 72 V audio subsystem combining tactile frame transducers, horn-loaded compression drivers, and direct Class D amplification for a high-output hardtail platform.
Research Block III: CYC Photon Pro Architecture and Flat-Terrain Thermal Integration
An unverified 4,000 W, 180 N·m Photon Pro concept using flat copper hairpin windings and a 72 V Tenpower 50XG pack for the flat, wet Lower Mainland.