LT1056 BJT Amplifier
January 2026
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| Status | Built |
| Circuit family | Alexander-style / BJT |
| Photographs | 11 full-size gallery images |
| Downloads | 1 local design and reference files |
Project Notes
The successful bipolar-output revision of the high-speed experiment. Replacing the LT1223 with an LT1056 and revising compensation produced stable hardware; the archive includes sine- and square-wave tests, the PCB work, Gerbers and LTspice files.
diyAudio discussion
Photo Gallery

1. 20260110 142454
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2. 20260110 142502
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3. 20260110 142517 HDR
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4. board tested
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5. lt1056.bjt.20.ok
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6. lt1223 bjt fft
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7. lt1223 bjt thd
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8. Pcb LT1223.bjt.14
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9. squares 17khz
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10. squares 57khz.
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11. lt1223 schematic bjt
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Design Files and Documents
LTspice simulations