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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: RE: Graaf GM20 OTL posted by roio on September 8, 2014 at 22:46:32:
Roberto
After I read Graaf GM20 schematic again I must correct myself by saying that Graaf GM20 actually use around 6db of GNFB , but regardless to that even Graaf GM20 need to be periodically checked for correct output DC of set and correct output power tubes Bias , and to Manually adjust that values , further that means that implementing DC coupling inside of OTL Amp altogether with GNFB does Not automatically mean maintenance & trouble free operation .
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Follow Ups
- RE: Graaf GM20 OTL - Banat 13:03:52 09/09/14 (3)
- RE: Graaf GM20 OTL - roio 02:44:24 10/22/14 (2)
- RE: Graaf GM20 OTL - Banat 03:32:36 10/22/14 (1)
- RE: Graaf GM20 OTL - roio 04:19:17 10/22/14 (0)
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