2019年1月19日 · 2A3 speaker terminal. As for listening test, I played several type of music, this 2A3 SE amp is much differ from my previous 6SN7-2A3 or 717A-2A3, the plate choke can …

2022年8月11日 · OPTs are O-Netics Level 1 specifically designed for 2A3 - SE, air-gapped, spec'd to run classical 2A3 operating points, so minimum 60mA primary current capacity but …

2023年3月15日 · The 2a3 deserves a DHT driver stage to make it sing. Choice of e.g. 2P29L, 4P1L, 26, 112A, 10Y all in filament bias. 2P29L the easiest to build with Rod Coleman filament …

2009年12月12日 · 1的m-cap银摸，当然2a3的栅阻用360k比较好，这种搭配声音厚实有凝聚力，并且不缺松弛自然，是听jazz的最佳选择。 二是前后都用0。 22的JENEN铜，这是听人声 …

2012年10月27日 · Two symphony musicians who attend our regular soirees, a double bass and a violinist, think this is one of our best tubes amps for driving the Altec 19s. We have had this kit …

After looking at different circuits in the Internet, I have decided to calculate my own 2A3 Amp circuit design. This is revisited schematic! See details at Upgrades page. The original …

I've tried a few versions which often started out as 2A3 designs or 6B4G designs. Here are three, starting with a PP design. It shows a 6B4G pair but I built it with 6S4S and used an 8K Ra-a …

New 2A3 PSE by Andrea Ciuffoli - starting in the November 2007 INTRODUCTION. The targets of this project are the following: simple and cheap; hi-end performances; a low distortion to 4 …

2012年12月11日 · Anybody seen a list of 2A3 single ended designs out there? Looking for comparisons and pros and cons - in particular, curious about the newer, current production …

This 2A3 SE valve amplifier is a class A power amplifier which has high linearity and low distortion, are capable to delivery 5W to 8Ω speaker for each channel. The first stage is SRPP …