Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length.

[Brian60]

OK in (very) early preparation of getting my various ships sailing again. I have found in the loft a Sanwa 40mhz transmitter. It carries the name conquest mkII on the front, this appears to be a 4 or 5 channel jobbie, I'm not sure which, I do recall buying it way back in the 90's! Well I'm sure it must have the receiver someplace up there as well because I never threw anything like this away.

What I'm wanting to know is can I still get servo's to plug straight into the receiver (assuming I can find it) can I buy a receiver to match? what about the crystals? the one that is fitted is marked 50. If I have to get a new receiver I'd need those as well. Is it worth bothering with or just junk and go out and buy a new set-up

? I do know it cost a bloody arm and leg way back when, hence the reason for not throwing it away at the time! I've attached a photo of it.

[essex2visuvesi]

I think it takes normal servos, but could be wrong


Also pretty much any 40Mhz FM rx should work with it


The cirrus ones are good value
http://www.servoshop.co.uk/index.php?pid=CR040140&area=RADIO


or these ones
http://www.hobbyking.com/hobbyking/store/__7509__Corona_4Ch_Single_Conv_Rx_40MHz_Incl_10_Rx_Crystal_.html

[inertia]

Brian
I think it safe to say that you won't now get either servos or receiver new from a dealer or model shop. Sanwa changed their connectors with the subsequent sets to this one. The receiver and servos on this set have centre pin = negative and the connectors are polarised by a weird sort of castellation in the plug shell moulding (unique to Sanwa). All are now "industry standard" i.e. red wire = positive = centre pin. Sanwa sets are marketed in the USA as Aircotronics.
My advice would be to keep an eye out on E-bay and other Internet model websites just in case an old set comes up but, in the meantime, buy a new 2.4GHz budget set e.g. Planet T5. Arms and legs are a lot cheaper these days!
If you specifically need a 40MHz set (e.g. for a sub) then PM me - I still have a Hitec Focus 6 for sale with 2 receivers.
DM

[essex2visuvesi]

I thought the RX that came with this set was one of the first of the "standard" ones
In any case I'm reasonably sure that either of the 2 receivers I listed in my previous post will work with that TX

However as you rightly say, for a few more pounds you could have a nice shiny new 2.4Ghz handset

[Brian60]

Thanks guys. A little more brain picking if you don't mind. I've been up and rummaged about some more and turned up the following. I found 3 servo's with the Sanwa name on them along with the receiver whoopee! There is also a a speed controller with the name Traxxas on it, the plugs are the same and it fits the receiver so it must have been bought at the same time! I don't have any other info on the speed controller hey ho.

As you say Inertia the centre pin of the plug appears to be neg with the red one feeding one of the outer pins. Would it be safe to buy new servo's and just swap the pins over? Any fettling of the plastic plug can be done with a craft knife to make them fit the receiver.

Also you will notice that the receiver aerial terminates in a jack plug, have you any idea of the length this should be to get the correct wavelength?

[essex2visuvesi]

The Esc is a XL-1
Instruction manual

http://traxxas.com/pdfs/3006INST_XL-1.pdf


Not sure on amps but it has a 17Turn limit so probably around 20-30A

[inertia]

I had a Sanwa Conquest 2 exactly like this and the Rx and servos were as I described (and as per the photo). I can't say whether or not they re-engineered the Rx with standard pin-out for later production runs.
If you swap over the centre and outer pins of the ESC plug you should be fine - I used to modify our ESCs for Sanwa that way. The pin spacing is standard.
As far as the aerial length, I seem to recall it was quite long although I can't remember exactly. I would think that a combined length of stub + extension would be in the area of 30"-36". For boats you won't need as much range as for aircraft so a bit of accidental deviation from standard shouldn't hurt.
BTW I'm curious to know when and why "transmitter" became "handset". Is this the influence of video gaming?
DM

[malcolmfrary]

BTW I'm curious to know when and why "transmitter" became "handset". Is this the influence of video gaming?

Yes.
The servos look like the olde worlde ones, so are to Sanw's original non-standard.  If the ESC connector wires are black-red-white, then they are to the modern standard, and will need the pins winkling out and re-inserting in the right order.  I would probably find a spare servo and practice on that.

[Brian60]

Thanks guys. As ever I am finding this forum an absolute gem of useful information and willing contributors.

[Stan]

Hi Brian. P/m sent.
 
Stan