[NSRCA-discussion] More stuff from 1971

David Harmon k6xyz at sbcglobal.net
Fri Jan 29 07:10:19 AKST 2016


Really nice Jim...great to see one of your rigs again!

 

David Harmon

Sperry, OK

 

From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On
Behalf Of joddino via NSRCA-discussion
Sent: Friday, January 29, 2016 10:01 AM
To: NSRCA discussion Pattern NSRCA <nsrca-discussion at lists.nsrca.org>
Cc: joddino <joddino at me.com>
Subject: [NSRCA-discussion] More stuff from 1971

 

 

 

Begin forwarded message:





From: Cal <calorrflyrc at hotmail.com <mailto:calorrflyrc at hotmail.com> >

Subject: S&O Transmitter 2.4

Date: January 28, 2016 8:01:11 PM PST

To: "joddino at me.com <mailto:joddino at me.com> " <joddino at me.com>





Hello Jim

I have finished the work on the S&O transmitter and have flown with it.

I started by taking everything out of the case and cleaned it up. I used
your encoder board and did not cut it.   I removed 2 chokes on the circuit
board, one fed + power to the RF section and the other fed the signal to the
RF section. The RF section is dead and I did not butcher transmitter. I also
moved wires around on the encoder board so the channel mapping is like that
of JR. I also reversed the throttle channel because most ESC's like to see
an expanding pulse width from low to high. I installed new batteries but did
not use the red battery boxes which gave me room to install my stuff in the
bottom of the transmitter, instead of the top. I did have to move the charge
jack but there were holes already there. The transmitters meter is the same,
resistor off of B+ and I installed my indicator LED behind the meter that
can be seen from the front through the meter. I did add a button on the top
right that is used for bind and range tests.

Fun project, look forward to many more flights

Thanks again

Cal



 

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