GK71

SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

In Reply to: 211 alternatives posted by Genp on February 25, 2016 at 06:45:57:

You might enjoy wading your way through this thread by a UK group on building an economical version of this inexpensive Russian tube. It is apparently easier to drive than a GM70 and can run at 500 volts and 80- 90 ma. However it needs a top cap.

I am currently getting close to testing my economical version using the GK71. I have been blogging my construction as I go at

http://audioratbag.blogspot.com/2016/01/the-heart-attack-special-6s17k-v.html

One of my GK71 tubes was bad so I am waiting for more to arrive. My multiple SMPS power supply and the high frequency AC heating appear to be working.

Just remember that the goal of this amp is to be light weight and to try some different ideas. Great sound is not the goal though I suspect it might sound fine.

ray

http://www.audio-talk.co.uk/phpBB3/viewtopic.php?f=11&t=4983 (Open in New Window)

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Follow Ups Full Thread

Topic - 211 alternatives - Genp 06:45:57 02/25/16 (13)

RE: 211 alternatives - Genp 10:49:55 02/26/16 (1)

So why do you need alternatives? - Triode_Kingdom 13:07:42 02/28/16 (0)

RE: 211 alternatives - drlowmu 08:33:35 02/26/16 (0)

RE: 211 alternatives - morricab 07:32:47 02/26/16 (0)

RE: 211 alternatives - Al Noakes 02:45:53 02/26/16 (0)

RE: 211 alternatives - Frihed89 02:26:44 02/26/16 (0)

GK71 - RayP 14:10:15 02/25/16 (0)

RE: 211 alternatives - SteveBrown 08:15:11 02/25/16 (0)

RE: 211 alternatives - Triode_Kingdom 08:05:02 02/25/16 (0)

RE: What about a GM70? - deafbykhorns 07:23:43 02/25/16 (3)

RE: What about a GM70? - Genp 16:31:42 02/25/16 (2)

RE: What about a GM70? - dave slagle 06:22:04 02/26/16 (0)

RE: What about a GM70? - Triode_Kingdom 00:30:41 02/26/16 (0)

Follow Ups

GK71 - RayP 14:10:15 02/25/16 (0)

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