KB1006: SDH164D with one 4 inch 8 Ohm speaker with 3.3 Ohm resistor

This article was last updated on Nov. 13, 2013, 8:15 a.m. | Print Article | Leave Feedback

 

Sound Decoder:  SDH164D SoundFX

Wired Mobile Decoder fopr HO Locomotives

1x4.jpg

Master Volume: CV58=9 to 15, Diesel CV60=1, Bell CV141=64Max., Horn CV142=64 Max.

Speaker: 4 inch Dia. 8 Ohm Speaker, 4 Watts with a 3.3 Ohm resistor in series.

 

 

         Diesel Horn

 

 

    880Tone Sine Wav.

 

  Horn & 880 Hz together

 

Factor

 

 

dB@4'

CV58

MtoP

 

dB@4'

CV58

MtoP

 

dB@4'

CV58

MtoP

 

x 0.71

 

 

79

15

 3.85

 

74

15

 4.00

 

79

15

4.00

 

2.84

Vrms

 

78

12

 3.80

 

73

12

 3.95

 

Amplifier is O.K.

 

11 Ohm

Load

 

76

9

 3.70

 

72

9

 3.85

 

 +0 dB

 0.73

x 1.0 =

 

0.73

 Watts

 

The Generic Steam Diesel Scheme_38a  download by a PR3, and the Bell is replaced with a Tone880Hz.wav

 

The dB@4' by Bob Frey with a SOUND LEVEL METER  Range:  40 dB to 85 dB                  10 Aug. 2012

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