SE DC 2A3 : bandwidth sweep 20-20KHz ...graph

Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

Bandwidth sweep 20-20KHz.

Hammond 125ESE OPT.

So far I have found 3 things that seem to affect ARTA THD% measurement :

1) 2A3 types - monoplate vs. biplate.

I also was able to detect a defective tube.

2) plate load and biasing of 2A3 finals

3) external vs. internal signal generator - this was most evident at lower power levels.

The ESI Juli@ has performed well since I removed anti-virus program from PC running XP SP3.

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Topic - SE DC 2A3 : bandwidth sweep 20-20KHz ...graph - deathtube 667 16:44:11 04/04/14 (6)

It would be interesting to see the sweep with a speaker as a load - Chip647 06:54:23 04/05/14 (3)

RE: sweep with speaker load ... - deathtube 667 14:44:27 04/05/14 (2)

And a 16ohm load? - smart845 02:38:45 04/06/14 (1)

RE: And a 16ohm load? - deathtube 667 05:09:44 04/06/14 (0)

RE: SE DC 2A3 : bandwidth sweep 20-20KHz ...graph - kyle 19:45:14 04/04/14 (1)

RE: SE DC 2A3 : bandwidth sweep 20-20KHz ...graph - deathtube 667 20:51:38 04/04/14 (0)

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