Op-Amp Circlophone
December 2024
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| Status | Completed |
| Circuit family | Circlophone / op-amp input |
| Photographs | 39 full-size gallery images |
| Downloads | 1 local design and reference files |
Project Notes
A 2024 return to the Circlophone concept using an op-amp input stage. The archive follows simulation, PCB manufacture, first tests, waveform checks, enclosure work and active cooling through the completed amplifier.
diyAudio discussion
Photo Gallery

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2. 20241028 164342
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3. 20241028 164546
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4. 20241208 103952
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17. 20241229 164442
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19. 20241229 164523
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20. op circlo namp.15
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21. pcb 24aug2024
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22. sinus 1khz 54vpp
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23. sinus 34khz
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24. squares 1khz
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25. squares 34khz
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26. tested pcb
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27. test overall view
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28. 20241229 164521
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39. 20241026 192145
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Design Files and Documents
LTspice simulations