|
Dynaco FM-3 |
|
|
|
 Close up of the tuning and stereo indicator EMM801. |
|
|
 Top view with the original Dynaco MPX-decoder on the left side. |
|
|
 Close up of the MPX-stereo decoder |
|
|
 Bottom view |
|
|
 For the Swedish market I made a solid state stereo decoder designed around the Mullard LP1400 module. |
|
|
 Bottom view with my decoder. |
Frequency response after modifying for 50 uS deemphasis |
THD at 1 kHz - mono |
THD at 1 kHz - stereo |
Signal to noise, 0 dB = 1 volt, FM-carrier 100 MHz 10 mV |
Channel separation L = green, R = yellow (the reversed looks
the same) |
Frequency spectrum right output showing residual 38 kHz carrier and
19 kHz with sidebands |
