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modification for Bachmann sound
- Johns33dodge
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7 years 4 months ago #46
by Johns33dodge
modification for Bachmann sound was created by Johns33dodge
I found a modification for big hauler sound on line to add a resistor and capacitor to the sound board for better chuff. Has anyone done this? this instructions says it was in Garden Railroad magazine at on time. Anyone know what issue that was?
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7 years 4 months ago #47
by Tom
Replied by Tom on topic modification for Bachmann sound
Do you have a link that gives details on the modification? Resistors are going to restrict current flow and a capacitor is probably going to be used as a decoupling capacitor, which could make the sound more consistent.
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7 years 4 months ago #51
by DBCherry
Replied by DBCherry on topic modification for Bachmann sound
This web page should give you everything needed to fix the Bachmann sound boards. Find the one you have in your tender.
www.girr.org/girr/tips/tips4/bachmann_sound_tips.html
www.girr.org/girr/tips/tips4/bachmann_sound_tips.html
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- Johns33dodge
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7 years 4 months ago #52
by Johns33dodge
Replied by Johns33dodge on topic modification for Bachmann sound
I have this saved but the picture is small and the needed capacitor information is not clear, it says 30 mf and when I search for it I get all kinds of sizes and shapes
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7 years 4 months ago #53
by DBCherry
Replied by DBCherry on topic modification for Bachmann sound
Do you mean 30mf or 330mF?
Which option are you looking at?
Which option are you looking at?
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- Johns33dodge
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7 years 4 months ago #54
by Johns33dodge
Replied by Johns33dodge on topic modification for Bachmann sound
sound generator modification- ask for 30-50 mf
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7 years 4 months ago #55
by DBCherry
Replied by DBCherry on topic modification for Bachmann sound
Either a 33 or 47mf are standard values. as for voltage the minimum for this circuit should be 15 volts or higher. The higher the voltage rating the larger the capacitor. Stay below 25 volts if you can.
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