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12AU7, K61
- Maker
- Siemens
- Brand
- Telefunken

Manufacturer record
Telefunken is a manufacturer or brand recorded in the TubeDatabase archive. The archive lists 45 tubes made or branded by Telefunken. Tube numbers on file include 12AU7, K61, ECC82, 12AX7, ECC83, I63, 12AX7A, 12AX7WA, 5965, GZ34, 5AR4, and F32 and others.
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