2010年10月8日 · A few months ago I finished my first tube project a 6C33C SE amplifier (I love it) and now I decide to go to another level so I ordered a pair of GM70. I would like to build an …

The main advantages of the GM70 is the higher amplification factor (8 instead of 5). Using the 845 it is necessary use a strong driver stage with a very high voltage amplification, low output …

I’m a novice with SE GM70, and had been eyeing designs on the internet, especially the Tsaar. See: https://www.audio-creative.nl/wp-content/uploads/Tsaar-GM70-schema.jpg I assume you …

推动级用了2A3B加1:1推动牛去激励GM70作单端功率放大，2A3是只线性十分优秀的低内阻三极管，在这作A类推动放大时的推动电最大可以达到200Vrms，足以推动845或FD71(三极接法)等 …

2018年3月13日 · With only one stage you can drive the GM-70 to full power and get 18W out of this lovely transmitting valve: I don’t think the circuit needs explanation. The driver is described …

This amplifier without modifications will allow to use the GM70 and the 813 (FU-13) output tubes. The 813 is a general-purpose transmitting beam power tube with thoriated-tungsten filament …

The most powerful DHT GM70 from Soviet Union. Combined power with musicality, connection, emotional involvement, and intimate closeness; Hand made, point to point wiring

2016年5月26日 · 新近完成的gm70 se 之前装了几台300b 见gm70大气 试验一下 电路程式 rens1284/a4110+el35/el38+牛推gm70 方案低压(700v)低阻抗(5.5k)大电流 1284+EL38程式 回复

GM70 Dr1(120 ohm DC) 30H 250K +A +B -B gnd F F+A 1/2 12AX7 1/2 12AX7 1/2 6SN7GT 1/2 6SN7GT SE GM70 40W 22K +A=+950V +B=+270V-B=-270V 33/5W 33/5W 4,7ohm/5W 1% …

2025年3月4日 · In a direct comparison with the my new 813-GM70 SE, the Hybrid 2010 version 2 and the PP2010, the difference is huge and it is very difficult to return to hear these other …