I wanted to build a nice simple clean combo to use as a pedal platform - as simple as it comes - power switch, volume. I only play in church and we always mic up the amps - my previous head/cab were overkill and more than i'd like to carry. The circuit is an EF86 preamp feeding a 6L6GC (or EL34) with a volume pot between the two - doesn't get much simpler than that. I based it on my previous 10w head, although I got rid of the power scaling and added a choke for better filtering without losing voltage (and volume). The build went surprisingly well considering it has been around 8 months since my last proper project. After all the voltages checked out for the initial power up I popped the tubes in and it worked beautifully. The noise floor is very low, no audible hum and only hiss at higher volumes. I'm very pleased with the lack of hum as my previous single ended amp originally hummed until I added an additional RC filter before the plates - that solution did however lose voltage through the resistor due to the entire amp's current draw feeding through it.. In this version I decided to try a choke with a low resistance before the plate feed - sounds great and the current rating is way above what the amp pulls so it should perform well. I had the cab built by Chris Uff (A UK cab builder who I found through Ampmaker.com) - he did a great job with the build and turned it around really quickly - highly recommended (firstname.lastname@example.org). All I need to do now is mount the chassis in the cab (when my cage nuts arrive in the post that is) and sort out a faceplate.. I don't think i'll go with a laser etched plate this time - I'm going to experiment with some thin real wood veneers to keep the simple look. I used a pre-drilled chassis, hence the extra unused holes on the front panel. I decided on an Eminence Ragin Cajun for the speaker (10 inch). I haven't tried one before and i'm very pleased with how it sounds so far. I'm very pleased with how the amp turned out - the EF86 has tons of headroom and takes pedals really well, plus really sings when hit with a nice clean boost (i'm using a TC Spark). I'll add clips soon when I get the time to record them.