KB1008: SDH164D with One SP26158B Rectangular Speaker and a 5 ohm resistor

This article was last updated on Nov. 13, 2013, 7:54 a.m. | Print Article | Leave Feedback

Sound Decoder:  SDH164D SoundFX

Wired Mobile Decoder for HO Locomotives

1x85res.jpg

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

Speaker:  one SP26158B Rectangular 26.5mm X 15.5mm x 9mm, 8 Ohms 0.5W Compact Box, Speaker with enclosure & wires.

A 5 Ohm 1/2W resistor in series with the speaker.

 

 

         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

 

 

68

15

 4.00

 

65

15

 4.10

 

68

15

4.10

 

2.90

Vrms

 

67

12

 3.95

 

63

12

 4.05

 

0.5 W Speaker O.K. with 5 ohm Res.

 

13 Ohm

Load

 

66

9

 3.85

 

61

9

 4.00

 

 +0 dB

 0.65

x 1.0 =

 

0.65

 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                  11 Aug. 2012

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