Sound Decoder: SDH164D SoundFx
Wired Mobile Decoder for HO Locomotives
Master Volume: CV58=9 to 15, Diesel CV60=1, Bell CV141=64 Max., Horn CV142=64 Max.
Speaker: Small-Oval 8 Ohm, 1 Watt with a 3.3 Ohm resistor in series.
35mm x 16.2mm or 36.9mm x 18.3mm w/enclosure
8.1mm High or 9.1mm w/enclosure
Tonystrains see dreamspeakers
|
|
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 |
|
|
|
67 |
15 |
4.00 |
|
65 |
15 |
4.15 |
|
67 |
15 |
4.15 |
|
2.95 |
Vrms |
|
|
65 |
12 |
3.95 |
|
64 |
12 |
4.10 |
|
Amplifier & Speaker are O.K |
|
11 Ohm |
Load |
||
|
|
64 |
9 |
3.75 |
|
63 |
9 |
4.05 |
|
+0 dB |
0.79 |
x 1.0 = |
|
0.79 |
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