Wiederhold HUF75842 Quasi Amplifier

December 2023
StatusCompleted
Circuit familyWiederhold / logic-level MOSFET
Photographs12 full-size gallery images
Downloads2 local design and reference files

Project Notes

A small quasi-complementary Wiederhold-style amplifier using fast HUF75842 N-channel MOSFETs. It was completed as a compact two-channel amplifier; this page is built directly from the working archive because it was not present in the old gallery index.

diyAudio discussion

Photo Gallery

20231231 112112
1. 20231231 112112 		20231231 112104
2. 20231231 112104 		20231231 112059
3. 20231231 112059 		20231231 112054
4. 20231231 112054
20231123 093226
5. 20231123 093226 		20231123 093213
6. 20231123 093213 		20231123 093507 HDR
7. 20231123 093507 HDR 		20231123 093459 HDR
8. 20231123 093459 HDR
test bench
9. test bench 		amp test close
10. amp test close 		pcb2 quasi
11. pcb2 quasi 		sawtooth 20khz
12. sawtooth 20khz

Design Files and Documents

Documents and notes

FileSize
readme.txt 264 bytes

LTspice simulations

FileSize
wiederhold1977_qhex.huff.04.asc 12 KB
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