Warning: This forum entry includes an example of "Kingy" moaning about DCC again...
One of the problems with electricity that's trying to be far too clever for its own good, is that you have to have perfect continuity between the supply and the loco (or other device), unless you have some sort of charge-storing device on board to keep the chip alive during momentary power interruptions - otherwise you can have rather tedious interruption and "re-setting to start up sequence" on certain functions such as sound. It's much easier with simple DC, you just prod the loco or give the baseboard a discrete (or otherwise) knock, and you're back in business. Anyway, the Leeds Central Stationmaster was fed up of one or two Bachmann pacifics displaying less than perfectly continuous pick-up of the juice, and asked me what I thought about adding tender pick-ups. We did consider transplanting the Bachmann tender bodies onto pre-wired Hornby underframes, but they are not a direct fit and the cost of the basic frame, the bottom plate, and possibly a suitable set of new wheels soon mounts up if you decide to do several locos. I was then daft enough to suggest that I thought I could "easily" add pick-ups to the Bachmann underfame, so I was given the job. It WASN'T as easy as I had imagined. My tentative Plan A was to glue long strips of PCB to the sides of the well-tank and attach the pick ups to those, also adding a small tubular socket to the front of each strip to accept a simple push-in pin connected to the loco wiring. There appeared to be room for the PCB behind the wheels, but that's not much help when (as I discovered) you cannot then get the wheelsets in or out as this demands that ALL of the original extravagant amounts of sideplay are still available! I also found that even with the strip pre-tinned to guarantee easy/quick soldering, it was virtually impossible to get an iron in to attach pick-ups without damaging the plastic side-frame mouldings in the process. I therefore had to come up with a Plan B. The well tank and scoop are clipped and glued to the floor of the main moulding, and I could have taken those off to get more space. There's certainly no room to slide strips of PCB between the well-tank floor and the thick axles unless you alter things, but I didn't really want to start making alterations to the tender mouldings, especially if it turned out that I still couldn't fit the pick-ups as I wanted. You can see below how I fitted the PCB in short pieces in the end, with bridging wires, plus the somewhat strage shapes of the pick-ups. These run on the inside of the wheel bosses rather than on the wheel rims, in order (I hope) to minimise their effect as brakes. The shape has to be carefully arranged so that they don't twang or even chatter on the spokes as the wheels turn, and don't touch the axles. The job took ages in the end, and I frankly wouldn't want to do another, but I've posted the result here in case others want to do something similar or can perhaps suggest a better way to do the job.
![Image](http://imageshack.us/a/img819/505/bachmanntenderpickups.jpg)
My belief now is that it would actually be easier and quicker to change the mounting of the loco's Cartazzi wheels as I have done of my own converted A2/2 or A2/3 chassis, so that the wheels are sprung and they steer properly, incorporating split-axle pick up as part of the job. It would also be easy enough to short out two of the loco's bogie wheels to get some added pick-up.