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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: this may be of interest regarding THD and IM posted by elblanco on June 20, 2019 at 11:52:01:
A buddy of mine bought one of those amps after reading that Stereophile review. I've worked on it a couple of times for him. In designing that amp Dennis paid very little attention to the B+ and filament power supplies. Silicon rectifiers in the B+ supply with no attempt at snubbing. A cap input B+ PS with a big cap and nothing to suppress the resultant transformer ringing. Filaments for input and driver: silicon bridge, cap, 3 pin reg. 300B? Silicon bridge and cap. As a result there is an undercurrent of "nastiness" that no tube rolling can eliminate, much to my buddies disappointment.
"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln
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Follow Ups
- RE: this may be of interest regarding THD and IM - JKT 06/20/1912:56:44 06/20/19 (3)
- RE: this may be of interest regarding THD and IM - ivan_terrible 08:19:06 06/22/19 (0)
- RE: this may be of interest regarding THD and IM - Wojciech 19:26:22 06/21/19 (0)
- LOL plus ROTFLMAOff WTOLRDMCheeks - Timbo in Oz 19:21:01 06/21/19 (0)
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