Heathkit T-3 Signal Tracer - Full Rig

I have shared captures of the Model T-3 signal tracer from Heathkit. It is a simple tube amp with 4” test speaker meant for electronics troubleshooting. There is a single Gain control to adjust loudness, like my EICO 145 signal tracer. The Heathkit’s tube circuit and speaker sounds distinctly different than the EICO. I have only included captures with the Gain set at 50. The internal speaker sounded a bit trashy with the Gain cranked. Use the Amp Head Captures with different IRs for the the cranked Heathkit T-3 sound. The T-3 uses the following tubes for the amplification: 12SH7 (preamp), 12A6 (power), 6X5 (Rectifier). The amp also has a 1629 magic eye tube for visual feedback. Full Rigs are denoted with the FR prefix. I captured Full Rigs at Volumes 5 and 9 with the following microphones on the speaker cone: Shure SM57, Beyerdyamic M201, Beyerdynamic M160. I connected my reamp box into an Ebtech Hum Eliminator before the T-3’s input for the “A” chain. Captures without the Ebtech were too noisy to be useful. The T-3 does not have a resistor to set input impedance. The input signal basically gets passed to the volume pot. I captured a “B” chain in which I used a Wampler Tumnus Deluxe in buffered bypass before the Ebtech Hum Eliminator. These captures are labeled with a ISO suffix. Full Rig Signal Chain A: RME UCX II Line Out – United Studio Technology Replay Box at 11.5dBu - Ebtech Hum Eliminator - Heathkit T-3 - Microphone - Stam SA-73 Mic Preamp - RME UCX II Line In Full Rig Signal Chain B: RME UCX II Line Out – United Studio Technology Replay Box at 11.5dBu - Wampler Tumnus Deluxe Buffered Bypass - Ebtech Hum Eliminator - Heathkit T-3 - Microphone - Stam SA-73 Mic Preamp - RME UCX II Line In All captures trained at 1000 Epochs using the TTSV10 input file, from The Tone Scientist, that is floating around NAM-related groups and forum posts. https://shop.thetonescientist.com/ Both Standard and xSTD architectures are provided. The Standard files should load in NAM hardware loaders. Input/output calibration metadata for 11.5dBu send/11.7dBu return provided.