The Cirrus MRX-6 appears to be no longer available. Another Rx option for the Vex radio's might be the Hitec Mini 6 Rx. It has the exact same specs as the Cirrus (probably the same board).
http://www.servocity.com/html/mini_6_rx.html I do not know if the Hitec will work, only offering as an option for use with the Vex transmitter. Steve Tyng On Feb 17, 10:18 am, Steve Tyng <steve...@gmail.com> wrote: > The Vex transmitter uses single conversion crystals. Most Futaba > stuff uses double conversion. The Vex works great with the Cirrus > MRX-6 receiver which is what I bought to go with my Vex. The Vex > crystals plug right into the Cirrus. As a bonus, the Cirrus is > marketed as a 72mhz air Rx but when using the ground frequency (75mhz) > Vex crystals the Cirrus automatically adjust to the higher freq. > > Steve Tyng > > On Feb 16, 10:15 pm, SteveH <n1xnx...@gmail.com> wrote: > > > Interesting. I've used Futaba gear as well as Airtronics; had great > > results with both. Now, if the TX is compatible with Futaba receivers, > > that also means it'll work with any number of fairly inexpensive > > aftermarket R/C receivers that are Futaba-compatible. Useful news. > > Thanks! > > > -- Steve > > > On Feb 16, 7:42 pm, "Andy Schwartz" <andyman61...@yahoo.com> wrote: > > > > These are basically a Futaba radio. They work with Futaba receivers. > > > > Andy > > > > ----- Original Message ----- > > > From: "SteveH" <n1xnx...@gmail.com> > > > To: "R/C Tank Combat" <rctankcombat@googlegroups.com> > > > Sent: Monday, February 16, 2009 5:49 PM > > > Subject: [TANKS] Surplus Vex Radio and Surplus Linear Actuator > > > > > Yo, tankers! > > > > I've just received one of the remarkably cheap Vex radios that are > > > > going for $9.99 on the surplus market (this one's from Marlin P. Jones > > > > (www.mpja.com, item number 17044 MI). You did NOT misread that. > > > > > NOTE: The receivers for these units DO NOT demultiplex the individual > > > > PWM channel signals, you must do this externally with a > > > > microcontroller or a simple logic circuit. Otherwise, it's a "normal" > > > > R/C unit. > > > > > Since I do microcontrollers for fun, this is not a barrier to me. > > > > > I am blown away by the excellent build quality and functionality of > > > > this radio system, folks. The 6-channel transmitter has plug-in TX and > > > > RX crystals, programmable servo mixing, exponential throws, 6 storable > > > > control configurations, battery voltage display, a "tether" output > > > > that bypasses the receiver to test the circuitry the receiver > > > > controls; all the sorts of things you'd want in a mid-range R/C > > > > transmitter. It is VERY solidly made, and has 4 actuator buttons on > > > > the back that are suitable for fire or traverse functions. Vex did a > > > > VERY nice job on these units; it suggests that their other products > > > > are also well made. > > > > > At $10, this is an incredible bargain. MPJA have 31 in stock as of > > > > this writing, down from 61 last week. > > > > > Downsides: 1) No charger jack for the tranny, gotta use AA NiCd or > > > > NiMH cells and charge'em separately. 2) Radio range is unknown as yet, > > > > but given the obvious high quality of the unit, I'd be amazed if the > > > > range is anything less than the 1/4 mile common to R/C units. 3) Ya > > > > gotta do your own demux. > > > > > It occurs to me that, if there were sufficient interest, this > > > > transmitter/receiver would combine excellently well with Anvilus' Mini > > > > Relay Controller or SSR controller (requiring a 5V regulator for power > > > > and a fairly minor tweak to the Anvilus controller's firmware) and > > > > Voila! Complete tank control system. (It will also work well with a > > > > Gumstix Robostix controller, which has lotsa I/O for R/C servos.) > > > > Since I'll be doing most of this anyway for myself, I would be > > > > entirely willing to provide the necessary tech data, and probably the > > > > microcontroller code, to accomplish this feat. Of course, once the > > > > supply of surplus TX/RX units goes, the design will be an orphan (or > > > > maybe not; I happen to know that the 3-pin power connector on > > > > Airtronics VG series receivers outputs the same kind of multiplexed > > > > pulse stream as the Vex receiver, and other radios may do similarly.) > > > > > Now for the other item: I notice on the back page of the MPJA catalog > > > > item #17265-MD; this is a lead screw assembly with a DC motor and > > > > incremental feedback encoder, much like one I cobbled together for > > > > Sancho Panzer's main gun elevate mechanism. At $30, it's not way > > > > cheap, but it's still well worth considering as an elevate mechanism. > > > > > Regards, Steve > > --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
