Well guys with the passing of Motorman and feeling a bit down as I looked through the box of motors Eldon sent me to play with over the years and decided to actually try one out in a Rivarossi Cab Forward. I’ve used the freebee motors in animation and one in my snow blower to turn the fan but not as locomotive power, all kinds of sizes and manufacturers.
This particular motor is a 12 volt Philips 9904 series round can motor, I can’t distinguish the rest of the numbers on the label and all of the Philips can motors say 9904.
This one measures 18.9mm diameter x 37.36mm long with a 1.5mm diameter shaft. At 12 volts no load it measures 8600 RPM. I installed an 8 tooth gear on the motor shaft and a 16 tooth gear on the Rivarossi drive line and here is what I ended up with.
No Load:
8.2 volts at 62ma = 320 wheel RPM or 60MPH scale, Approximately 68.5% throttle using a MRC2500 power pack.
Well guys with the passing of Motorman and feeling a bit down as I looked through the box of motors Eldon sent me to play with over the years and decided to actually try one out in a Rivarossi Cab Forward. I’ve used the freebee motors in animation and one in my snow blower to turn the fan but not as locomotive power, all kinds of sizes and manufacturers.
This particular motor is a 12 volt Philips 9904 series round can motor, I can’t distinguish the rest of the numbers on the label and all of the Philips can motors say 9904.
This one measures 18.9mm diameter x 37.36mm long with a 1.5mm diameter shaft. At 12 volts no load it measures 8600 RPM. I installed an 8 tooth gear on the motor shaft and a 16 tooth gear on the Rivarossi drive line and here is what I ended up with.
No Load:
8.2 volts at 62ma = 320 wheel RPM or 60MPH scale, Approximately 68.5% throttle using a MRC2500 power pack.
