I am starting a scratch build and want to document progress along the way here. I could not find a layout online that looked like a working layout. The folks at the Orange amp forum say a layout is a "trade secret". The store bought Tiny Terror is a PCB/tube amp that is manufactured in in various countries. I have been listening to many different sound clips and the amp does have a nice sound to it, its small and very portable, simple only three pots (gain, tone, volume). Orange does make a point to point hand wired version that is very expensive. So I decided to try to build one by the schematic.
After ordering the transformers from Mercury Magnetics (which was the only place I could find a PT with the secondary taps for the 7/14 watt switch) the "Kit" arrived. It is an "upgrade kit" that converts a Tiny Terror to a Holy Terror. I tried to incorporate these upgrades to my layout but one of the upgrades (a voltage divider) would change one half of the dual gain pot to a tone control that would change the tone anytime you changed the volume. After confirming with MM that their schematic was correct, and with the advise of some of the more experienced amp builders here I decided to just do the stock build. Then I can always make adjustments once I get the amp working if adjustments are needed.
Even though it may be a bit like building a ship in a bottle I am trying to stay with the same size chassis as the store bought amp. Rather than I complete four sided cover for the tubes I have just bent a 3/16 thick aluminum cover to protect the tubes. The chassis is painted and drying (not the same color as Orange amps LOL). This week I am going to work on the turret board. I have always used resistors rated higher than needed but this time I need the space so the board resistors will be the 1/2watt carbon comp.
Once I get the amp to work I will post the layout photo, the turret board layout, and the BOM if anyone else is interested in making one.
Topic: Scratch Build Orange Tiny Terror (Read 27841 times)