Do you have a question about the Dyna FM-3 and is the answer not in the manual?
Detailed performance metrics for sensitivity, distortion, noise, and frequency response.
Specifies performance criteria for stereo reception, including sensitivity and distortion.
Explains the design philosophy and advantages of the Dynatuner.
Describes the purpose and use of the tuning knob, stereo indicator, and tuning eye.
Guides on unit placement, ventilation, and connecting antennas.
Introduces the advanced circuit features and design choices of the FM-3.
Details the RF stage, IF amplifiers, discriminator, multiplex integrator, and audio sections.
Detailed instructions on proper soldering techniques and wiring best practices.
Step-by-step guide for assembling the RF circuit board, including component placement.
Instructions for assembling the IF circuit board and its components.
Guide for assembling the multiplex circuit board and its electronic components.
Mounting major chassis components like transformers, sockets, and capacitors.
Connecting wires to front panel controls like the tuning eye and volume control.
Preliminary adjustments to the mixer and RF stages for basic tuning.
Step-by-step process for tuning IF transformers for optimal signal reception.
Critical adjustments for the discriminator to ensure low distortion and noise rejection.
Fine-tuning the tuning capacitor and oscillator coils for accurate dial tracking.
Adjusting multiplex transformers for proper stereo separation.
Systematic approach to diagnosing and fixing problems encountered during operation.
Details on warranty coverage, service fees, and return procedures.
Instructions for building and positioning an indoor folded dipole antenna.
Table of expected DC and AC voltage readings for each tube under various conditions.