loverocker wrote:You're going to do all this over this weekend! Wow - you're a fast modder!
I'm only modding the schematic at this point. I may build something more like this later. At this point it is an exercise in mod collections, education, and idea generation.
Trainflex 1.2 is becoming more modular. I added in the LOOP OFF switches as well as added a tube reverb section. The PT will no longer support the full structure. If someone were to build it you would have to recalcuate the circuit load. Maybe I can do that for 1.3
I realize that this is incongruent to the "simple pure pipeline" approach for the Express. This goes more in the vein of tweaking, experimentation, and organization of ideas.
I added snides Komet mod instead of the one I have and I am still tinkering with some more additions. I also removed the parallel 1M resistor and fixed a couple of typos.
Maybe there's a way to use a 2 pole switch to change the cathode values on the first two stages to go from Komet (2.7k/.68 & 1.5k/22uf) to Express values (1.5k/22 & 2.7k/22) by using two paralleled resistors around 2.8k to 2.9k and using the switch to lift or connect the ground connection to one resistor along with the extra capacitance in the case of v1 on the Express. In the Komet setting, the switch would lift one 2.8k/22uf combo on the first stage, and add one 2.8k ground connection on the second stage. Flipping the switch to Express would connect the ground connection on an additional 2.8k/22uf in parallel with the first 2.8k/.68 and lifting the ground connection on the second stages second 2.8k resistor.
The resistances would of course be approximations of 1.5k & 2.7k, but you could have your paralleled/single first stage and the Komet/Express switch on the same amp. Connect the switch to a relay and you could channel switch from Express to Komet style preamp.
Ross, I have Visio XP - any chance of getting the source file I could use as a template? I've just spent an hour drawing the input jack, 1 resistor, and 1 tube... Kinda struggling with this...
Good Stuff.
This should be added to the files section. It's a bit hard to read when printed out. Would be nice to get a higher resolution print to study.
Omar, This trainflex post seems pretty cool and has a lot of possible modifications, for the wreck of any amp. You might want to put it in the files section.
Just thought this would keep it handy for reference...
Wow - you're a fast modder!
