• Year
  • 1964
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 87842

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 11
  • Main principle
  • Superhet with RF-stage; ZF/IF 10700 kHz
  • Tuned circuits
  • 13 FM circuit(s)
  • Wave bands
  • FM Broadcast Band Only
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Dynatuner FM-3 - Dyna Co. Dynaco; Philadelphia
  • Shape
  • Book-shelf unit.
  • Notes
  • FM stereo tuner
  • Price in first year of sale
  • 129.00 $
  • Mentioned in
  • -- Original-techn. papers.

 Collections | Museums | Literature

Collections

The model Dynatuner is part of the collections of the following members.

 Forum

Forum contributions about this model: Dyna Co. Dynaco;: Dynatuner FM-3

Threads: 1 | Posts: 3

Hello everyone .

I have a problem with one dynaco fm3 . The discriminator transformer is unalignable , I can't get less than -2,5v  on eyelet 32 so the signal does not pass ( normally there should be at least -8v)

The rf board , the if board and the multiplex section are working fine , the only problem seems to be the discriminator transformer itself .

I also opened the transformer , refreshed the solder joints and  tried to replace the pair of diodes inside the transformer  and the 33pF capacitor but  no success

Does anyone have any idea of what the problem should be and how to solve ?

Thank you , Antonio

 

 

 

Antonio Fabio Colorito, 24.Jun.12

Weitere Posts (3) zu diesem Thema.