I bought a few spare boards for repairing my Tascam 38 however it seems that Tascam made at least two versions of this board and maybe 3, Its similar
Tascam 38 Reel to Reel Tape Recorder - Record/Playback PCB-120 52100748-01
Tascam 38-8 Reel to Reel - Gearspace
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The journeys of a vintage audio geek (Netherlands)
Record playback boards for the Tascam MSR-24 not seen often an always recommend getting a few of theseif you are seriously using your machineLovely
Tascam MSR-24 Record and Playback Card 52102921-00 52102924-0 – Tascam Ninja
Tascam 38 Reel to Reel Recorder Restoration (Part 2)
Gear & Review - Explorations in Audio
Tascam 38 and other TEAC and Tascam reel to reel recorders edit switch, includes wire and Molex connector, This was used in all Tascam 30 series
Tascam 38 and others edit switch PCB PCB-204 5210074100
Tascam 38 Teac Reel to Reel – ONE Record and Playback AMPL PCB-120 Control Board ⋆ AMQM Recambios
Tascam 38 Teac Reel to Reel – ONE Record and Playback AMPL PCB-120 Control Board ⋆ AMQM Recambios
TASCAM 38 REEL To Reel - Function Select PCB part number PCB-105 5210075400 M32 £21.42 - PicClick UK