I used a Dimension Engineering PicoSwitch (see http://www.dimensionengineering.com/products/picoswitch ) in Bazooka Joe. It's a nice little relay with a green LED that lights when the relay contacts are closed. There is a also an audible click as the relay changes state. There are two screw terminals and an RC plug - couldn't be simpler. Polarity is not an issue on the contacts. I soldered a pair of wires across the trigger contacts of my electronic marker (so I can fire it manually as needed for testing) and screwed the other ends into the relay. It fires when the RC control is about half-way to one end.
I'm about to test a Pololu low-side MOSFET switch a (see http://www.pololu.com/catalog/product/1210 ) and will report when I have news. This will require some soldering but is less than half the price. My marker trigger switch operates on the low side (connecting the electronics to the circuit ground) so this is ideal. The circuit diagrams I could find for the Turnigy thing seem to indicate it's a high-side switch. On Wednesday, May 22, 2013 3:19:44 PM UTC-4, Mike Mangus wrote: > > Another for firing an electronic trigger marker is an electronic on/off > switch. The Turnigy switch from Hobby King costs less than $7. Course, > there is shipping too ... heh. > > Mike > > *From:* Frank Pittelli <frank.p...@gmail.com <javascript:>> > *To:* rctank...@googlegroups.com <javascript:> > *Sent:* Wednesday, May 22, 2013 11:13 AM > *Subject:* Re: [TANKS] Re: M4A3 75mm Build Project > ... > 5) Fire control is the simplest of all systems. If your marker has an > electronic trigger, you only need a stock servo ($10) and a micro-switch > ($1). > ... > -- -- 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 --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to rctankcombat+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.