Welcome! Need support, you got it. Or share youe ideas and experiences.
Does anyone here have any experience with the 20w PP EL34 amp by Andrea Ciuffoli ? Especially using amorphous interstage and output transformers. I'm curious about the sound. Thanks.
I built an EL84 version of this amp using a single ECC99 driving an LL1660S SE to PP. I've had good sonic results. I did use a fair amount of bypass to the get the gain where it needs to be with a gain of 22 for the ECC99. This tube reminds me of a Black Plate 5687 only with more gain. very sweet. I've been inspired by some of Andre's projects. I designed this job dual mono, choke input power supply and no electrolytics. It's a great sounding amp.
I think it's a safe design to play around with.
I built a variation of that before the AM era. I use 6c45 and 6550 instead of that configuration. It sound very musical and yet it sound very straight forward.
I hope to try the AM version later.
This post is made possible by the generous support of people like you and our sponsors: