These capacitors are the power supply caps (please correct me if I'm wrong). If we look at the left side of the caps, we see each set of 2 going in certain directions. My question is this; if I remove a set (200uF), and replace it with a single 150uF, what other changes need to be made?. Do I need to add a 47uF to make it closer to 200?. Can I go to 300uF with no changes?.
Lew. This second picture is of the huge 27,000uF caps at the back of the amps. These caps -ve are attached to the speakers binding posts. Because these drive the speakers, I wanted to see if better coupling caps (ripple current caps) improved the sound. For me they did.
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Topic - I'm Bored, part ll. MA-1 pictures - Cousin Billy 04:50:53 03/09/14 (29)
- RE: I'm Bored, part ll. MA-1 pictures - Michael Samra 13:10:20 03/12/14 (27)
- Mike, that output stage supply operates at only 125VDC - Lew 16:49:20 03/12/14 (25)
- RE: Mike, that output stage supply operates at only 125VDC - Cousin Billy 04:18:54 03/13/14 (21)
- 4700uF Panasonic - Lew 11:39:36 03/13/14 (0)
- RE: Mike, that output stage supply operates at only 125VDC - Lew 07:12:31 03/13/14 (19)
- Correction- the supply voltage is a little higher. - Ralph 11:48:52 03/13/14 (18)
- SUCCESS. Thank you everyone - Cousin Billy 16:08:57 03/16/14 (5)
- SUCCESS. Then a step backwards - Cousin Billy 17:56:45 03/17/14 (4)
- RE: SUCCESS. Then a step backwards - Lew 10:21:43 03/18/14 (3)
- just a FWIW - Ralph 12:14:45 03/18/14 (2)
- I guess you are suggesting - Lew 13:13:07 03/18/14 (1)
- not exactly - Ralph 13:27:31 03/18/14 (0)
- RE: Correction- the supply voltage is a little higher. - tyu 12:01:57 03/13/14 (11)
- Some of the older amps had lower voltages - Ralph 14:15:41 03/13/14 (10)
- My education continues - Cousin Billy 17:23:42 03/13/14 (3)
- an I raise the 200uF values simply by installing a film cap across each 100uF pair? - Lew 19:06:37 03/13/14 (2)
- RE: an I raise the 200uF values simply by installing a film cap across each 100uF pair? - Cousin Billy 04:15:06 03/14/14 (1)
- RE: an I raise the 200uF values simply by installing a film cap across each 100uF pair? - Lew 11:00:58 03/14/14 (0)
- I guess I measure about 132V, most days,... - Lew 16:32:52 03/13/14 (4)
- In the case of Billy's amps - Ralph 08:30:19 03/14/14 (3)
- Last Question? - Cousin Billy 10:02:10 03/20/14 (2)
- the downside - Ralph 10:44:01 03/20/14 (1)
- RE: the downside - Cousin Billy 13:08:36 03/20/14 (0)
- RE: Some of the older amps had lower voltages - tyu 15:58:52 03/13/14 (0)
- RE: Mike, that output stage supply operates at only 125VDC - Michael Samra 17:50:40 03/12/14 (2)
- OTL circlotron - Lew 19:01:19 03/12/14 (1)
- RE: OTL circlotron - Michael Samra 15:49:33 03/19/14 (0)
- And there I have my answer!!!!!!!!!! - Cousin Billy 16:01:46 03/12/14 (0)
- RE: I'm Bored, part ll. MA-1 pictures - Lew 08:14:23 03/09/14 (0)