LMK 3055/2955 Amplifier

January 2023
StatusBuilt
Circuit familyLMK / complementary BJT
Photographs34 full-size gallery images
Downloads1 local design and reference files

Project Notes

An LMK-family implementation using readily available 3055/2955 complementary output devices. The page preserves the circuit evolution, board construction, test setup and waveform record.

diyAudio discussion

Photo Gallery

clipping
1. clipping 		DSCN0792
2. DSCN0792 		DSCN0793
3. DSCN0793 		DSCN0794
4. DSCN0794
DSCN0796
5. DSCN0796 		DSCN0797
6. DSCN0797 		DSCN0810
7. DSCN0810 		DSCN0811
8. DSCN0811
DSCN0812
9. DSCN0812 		DSCN0813
10. DSCN0813 		DSCN0814
11. DSCN0814 		DSCN0816
12. DSCN0816
fft 1kHz
13. fft 1kHz 		fft 20kHz
14. fft 20kHz 		lmk 1987 3055
15. lmk 1987 3055 		lmk 1987 3055 pcb
16. lmk 1987 3055 pcb
olg
17. olg 		sinus100khz
18. sinus100khz 		sinus1khz
19. sinus1khz 		sinus34khz
20. sinus34khz
square1
21. square1 		square 34khz
22. square 34khz 		thd 1kHz
23. thd 1kHz 		thd 20kHz
24. thd 20kHz
DSCN0815
25. DSCN0815 		DSCN0806
26. DSCN0806 		DSCN0795
27. DSCN0795 		DSCN0791
28. DSCN0791
DSCN0790
29. DSCN0790 		DSCN0789
30. DSCN0789 		DSCN0788
31. DSCN0788 		DSCN0787
32. DSCN0787
DSCN0786
33. DSCN0786 		DSCN0785
34. DSCN0785 		   

Design Files and Documents

LTspice simulations

FileSize
lmk_3055\lmk_1987.3055.6.ok.asc 13 KB
<< B44 3055/2955 Triple Emitter FollowerHOMESauberKraut Amplifier >>