| description | language | size | download |
|---|---|---|---|
| Hifi amplifier with no phase distortion up to 30,000 cycles | ![]() |
89 KB | download pdf-file |
| Mikrofon-Preamplifier with low voltage vacuum tubes | ![]() |
33 KB | download pdf-file |
| KO-circuit for obtaining amplifier-tube characteristic curves | ![]() |
76 KB | download pdf-file |
| Circuit for obtaining mutual conductancec characteristic curves | ![]() |
60.4 KB | download pdf-file |
| Audio circuits: amplifier, fader control, distortion reducer | ![]() |
186 KB | download pdf-file |
| 2 Phono-Preamplifiers with ECC 83 | no language | 25 KB | download pdf-file |
| 8 audio circuits from 1968 | ![]() |
146 KB | download pdf-file |
| 6 high voltage crt supplies from 1968 | ![]() |
87 KB | download pdf-file |
| 6000V DC power supplie from 1964 | ![]() |
31 pages, 2.46 MB | download pdf-file |
| 3100V DC power supplie from 1965 | ![]() |
39 pages, 9.88 MB | download pdf-file |
| Messender zum Schaltungstest von Empfängern | ![]() |
406 KB | download pdf-file |
| Röhrenvoltmeter | ![]() |
152 KB | download pdf-file |
| Industrieempfänger Televox 631 | ![]() |
318 KB | download pdf-file |
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