We all know that the DelTang instructions for assembling the Tx21 throttle are, shall we say, lacking. So, we’ve put together our own manual. This 17 page PDF document is fully illustrated with dozens of photographs, clearly illustrating each step in the assembly process. This manual is intended as a guide to assembling the DelTang Tx21 throttle only. It does not apply to the On30Guy™ THROT21 DelTang-compatible throttle.