KB1005: SDH164D with One 28 mm 32 ohm speaker

This article was last updated on Nov. 12, 2013, 8 a.m. | Print Article | Leave Feedback

Sound Decoder   SDH164D SoundFX

Wired Mobile Decoder for HO Locomotives
 

1x32.jpg

Master Volume CV58= 9  to 15,   Diesel CV60 = 1,

Bell CV141= 64 Max.,   Horn CV142=  64 Max.
 

Speaker:   One 28mm dia. 32 Ohm, 0.5 W

Not enclosed, and is hanging by the wires.

 

 

 

         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

 

 

66

15

 4.55

 

64

15

 4.60

 

67

15

4.75

 

3.35

Vrms

 

64

12

 4.35

 

62

12

 4.55

 

 The 0.5 W Speaker is O.K.  

 

32 Ohm

Load

 

62

9

 4.15

 

60

9

 4.45

 

 +1 dB

0.35

x1.15=

 

0.40

 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                  7 Aug. 2012

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