This is a multi-part message in MIME format. Scott - I have nothing so sophisticated as a parts list. I've been using my = 'Pumper as a modding platform for a bunch of years, and have added to it as time = has gone on. I've been thinking of taking some pictures of the inside, and sending = them to Ed for the homeroasters.org site. Your request may be the impetus I = need to finally do it. I'll let you know. Here's a short version: First, I widened the slots for more airflow and larger batches (I can = roast just under a half-pound now). But then I found that there was too much airflow - the air didn't get hot enough to reach cracking stage. So I did the transformer/dimmer mod to turn down the fan. I got a = plastic hobby box to mount stuff in, and integrated it all into the case. The = dimmer needed a bunch of stuff trimmed away to fit, and it was difficult = finding a suitable transformer that was small enough to fit. I have a second transformer that I might install in parallel with the first to supply = more juice. I use switches to turn on the main power and the power to the heating coils. I set it up so that the coils could not get juice unless the fan = is also turned on - it seemed safer that way. I installed a 12 gauge power cord so that there would be no bottleneck there. I also drilled a bunch of holes in the beancup to better = distribute the heat, and I drilled a bunch of holes in the plastic case so that = enough air could pass. I use a hurricane lamp chimney on top, to keep the = beans from flying out. I played around with temp sensors - thermocouple(s) and Polder = electronic thermometers, with holes drilled in various spots for the probes. That = kept me entertained for years. I use a K-type thermocouple in the heat = chamber, near the coils, so that I can monitor the air temp. It got to be a PITA = to have a wire hanging out for the external readout, so I decided to mount = a simple digital temp readout on the popper itself. I found it impossible to find a suitable temp readout! I cannibalized = my el-cheapo electronic thermometer, and tried to build it in. But due to unusual connectors, I was unable to do it. Finally, I searched eBay for a suitable digital readout, and stumbled = upon a 1/16 DIN PID controller. It sort of fits, with lots of internal mods to = the popper. I was going to just use the digital readout portion, but then realized having a PID control might be a lot of fun. So I bought a suitable Solid State Relay (again - it was hard to find a small one) and tried to fit the rats nest of wiring inside the case. In order to do so, I had to disassemble everything and use junction blocks = for the wiring connectors. That kept things neat enough so that it all fit. = So now my toy is very versatile. Big loads, small loads, fast or slow.