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In Reply to: Since the BUF-03's have no gain... posted by 1973shovel on November 8, 2024 at 05:12:14:
BUF03 is probably the only class A opamp on this planet. It is hot and noisy.
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Follow Ups Full ThreadTopic - Aunt Corey's Homemade Buffered Passive Preamplifier - Leo loves music 02:02:02 11/07/24 (58)
- I enjoyed a true passive years ago - E-Stat 13:08:57 11/08/24 (1)
- Me too. I tried a few passives..... - AbeCollins 08:51:47 11/09/24 (0)
- RE: Aunt Corey's Homemade Buffered Passive Preamplifier - AbeCollins 11:44:05 11/08/24 (6)
- RE: Aunt Corey's Homemade Buffered Passive Preamplifier - Leo loves music 11:49:35 11/08/24 (5)
- RE: Aunt Corey's Homemade Buffered Passive Preamplifier - Leo loves music 12:13:23 11/08/24 (4)
- "How does BUF03 sound?" - 1973shovel 03:57:28 11/09/24 (3)
- RE: "How does BUF03 sound?" - AbeCollins 09:45:43 11/09/24 (2)
- RE: "How does BUF03 sound?" - Leo loves music 11:36:36 11/09/24 (1)
- RE: "How does BUF03 sound?" - AbeCollins 15:09:05 11/09/24 (0)
- A circuit like this isn't passive for starters - Ralph 12:54:53 11/07/24 (37)
- Since the BUF-03's have no gain... - 1973shovel 05:12:14 11/08/24 (36)
- the BUF-03's have no gain... but its most definately 'active'! - Ralph 08:32:54 11/08/24 (34)
- RE: the BUF-03's have no gain... but its most definately 'active'! - Leo loves music 08:59:23 11/08/24 (33)
- Nor did we need them to know the difference between passive and active nt - Ralph 09:15:36 11/08/24 (32)
- VR1 is passive. Did someone say the rest of the circuit is also passive? - Tre' 12:09:51 11/08/24 (10)
- sure seems like it... nt - Ralph 12:16:27 11/08/24 (9)
- I guess I missed that. the name doesn't say it's passive. - Tre' 12:39:57 11/08/24 (8)
- "I think everyone knows that" - 1973shovel 06:36:23 11/09/24 (7)
- Or: 'Aunt Corey's Homemade Buffered Volume Control' (NT) - Kal Rubinson 09:12:19 11/09/24 (3)
- I was going for tongue in cheek - 1973shovel 14:18:07 11/09/24 (0)
- RE: Or: 'Aunt Corey's Homemade Buffered Volume Control' (NT) - Leo loves music 09:16:21 11/09/24 (1)
- everything you know is wrong - Ralph 11:30:47 11/11/24 (0)
- RE: "I think everyone knows that" - Tre' 07:27:12 11/09/24 (2)
- then all "preamps" are just attenuators" - 1973shovel 14:14:07 11/09/24 (1)
- Yep. nt - Tre' 11:12:58 11/10/24 (0)
- RE: Nor did we need them to know the difference between passive and active nt - Leo loves music 09:18:56 11/08/24 (20)
- Sure, we do. - Kal Rubinson 10:02:23 11/08/24 (5)
- RE: a power supply for motorized potentiometer - Leo loves music 10:24:03 11/08/24 (2)
- Words have a lot of meaning, just to be clear. - Ralph 10:48:26 11/08/24 (1)
- RE: agree - Leo loves music 10:52:11 11/08/24 (0)
- RE: thank you for education - Leo loves music 10:14:27 11/08/24 (1)
- Huh? - Ralph 10:46:31 11/08/24 (0)
- Be fussy about words. nt. - Leo loves music 09:37:49 11/08/24 (13)
- There is a difference between class AB and class A - Leo loves music 09:52:39 11/08/24 (12)
- There are other class A opamps- that's not unique nt - Ralph 10:44:12 11/08/24 (11)
- RE: There are other class A opamps- that's not unique nt - Leo loves music 17:22:26 11/09/24 (8)
- NE5534 ... - Ralph 10:53:35 11/11/24 (7)
- RE: NE5534 ... - Leo loves music 11:50:54 11/11/24 (5)
- Any opamp can be class A - Ralph 12:02:28 11/11/24 (4)
- RE: Any opamp can be class A - Leo loves music 12:11:21 11/11/24 (3)
- The class of operation has very little to do with how they sound. - Ralph 12:17:40 11/11/24 (2)
- RE: The class of operation has very little to do with how they sound. - Leo loves music 12:23:26 11/11/24 (1)
- RE: The class of operation has very little to do with how they sound. - AbeCollins 10:46:12 11/12/24 (0)
- RE: NE5534 ... - Leo loves music 11:41:23 11/11/24 (0)
- True. But most can't.... - AbeCollins 15:29:13 11/09/24 (1)
- BUF03 can do 1W - Leo loves music 17:12:04 11/09/24 (0)
- RE: Since the BUF-03's have no gain... - Leo loves music 05:56:50 11/08/24 (0)
- I dunno. I like the Nelson Pass DIY B1 - AbeCollins 11:22:19 11/07/24 (10)
- What's this board do, Abe? - 1973shovel 06:03:49 11/08/24 (9)
- RE: What's this board do, Abe? - Brick527 06:22:40 11/08/24 (8)
- Thank you (nt) - 1973shovel 15:54:05 11/08/24 (7)
- What Brick527 said - AbeCollins 08:57:08 11/09/24 (6)
- I've never heard the First Watt B1 - 1973shovel 14:38:32 11/09/24 (5)
- RE: I've never heard the First Watt B1 - AbeCollins 15:20:03 11/09/24 (4)
- I still have a bias toward linear power supplies - 1973shovel 17:03:39 11/09/24 (3)
- RE: I still have a bias toward linear power supplies - AbeCollins 18:35:48 11/09/24 (2)
- RE: I still have a bias toward linear power supplies - Leo loves music 19:59:17 11/09/24 (1)
- RE: I still have a bias toward linear power supplies - AbeCollins 19:57:07 11/11/24 (0)
Follow Ups
- RE: Since the BUF-03's have no gain... - Leo loves music 05:56:50 11/08/24 (0)