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[color=#008080]_I got this one one of the homebre rc sites***************************____
A large number of R/C modelers are electronics literate to a certain extent. Those who have an understanding of electronics can easily gain the three (3) missing channels of their typical 4 - channel transmitter if it uses a Phillips NE5044 or the older Signetics number CD8081.
To enable an additional channel, one of the pins, either 5, 6, and 7, must be freed. These pins are grounded by Futaba to disable the unused channels. Once freed, components can be added to utilize the channel.
To add a simple on/off type channel, the schematic in Figure 1 is used with the components listed in the table.
Notes]
A large number of R/C modelers are electronics literate to a certain extent. Those who have an understanding of electronics can easily gain the three (3) missing channels of their typical 4 - channel transmitter if it uses a Phillips NE5044 or the older Signetics number CD8081.
To enable an additional channel, one of the pins, either 5, 6, and 7, must be freed. These pins are grounded by Futaba to disable the unused channels. Once freed, components can be added to utilize the channel.
To add a simple on/off type channel, the schematic in Figure 1 is used with the components listed in the table.
Notes]
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