- 1. [Amps] NCL-2000 mods (score: 1)
- Author: jim feldman <mtnredhed@gmail.com>
- Date: Wed, 13 Jan 2010 10:50:36 -0800
- I've been through the archives at some length, so I'm looking more for confirmation of what I'm about to do. I recently acquired a fairly "virginal" 71 series NCL-2000. A little dusty on the deck, bu
- /archives//html/Amps/2010-01/msg00149.html (7,819 bytes)
- 2. Re: [Amps] NCL-2000 mods (score: 1)
- Author: "Steve Katz" <stevek@jmr.com>
- Date: Wed, 13 Jan 2010 11:14:16 -0800
- The HV power supply isn't half wave, it's a full-wave voltage doubler. 100uF caps should be fine, the originals in mine were 80uF and have never been replaced, still fine in 2010 (with different owne
- /archives//html/Amps/2010-01/msg00151.html (8,781 bytes)
- 3. Re: [Amps] NCL-2000 mods (score: 1)
- Author: jim feldman <mtnredhed@gmail.com>
- Date: Wed, 13 Jan 2010 13:52:12 -0800
- Steve, thanks for the correction. I'm in serious "learn" mode. After reading up on voltage doublers, it seems the voltage output is pretty sensitive to current loads. I know grid current is very low
- /archives//html/Amps/2010-01/msg00157.html (8,155 bytes)
- 4. Re: [Amps] NCL-2000 mods (score: 1)
- Author: "Carl" <km1h@jeremy.mv.com>
- Date: Wed, 13 Jan 2010 17:11:09 -0500
- The 100uF Sprague Atom wont clear the chassis, its too wide. Get the 80uF while you can as Atoms are being discontinued. Use 100K 3W MOX resistors for equalizers to minimize heat. The amp already has
- /archives//html/Amps/2010-01/msg00159.html (10,257 bytes)
- 5. Re: [Amps] NCL-2000 mods (score: 1)
- Author: "Steve Katz" <stevek@jmr.com>
- Date: Wed, 13 Jan 2010 14:00:16 -0800
- When you say grid current, I think you mean screen (Ig2) current. It won't matter that the B+ drops under load because the regulator will accommodate that. That's why you use the regulator. J It's a
- /archives//html/Amps/2010-01/msg00160.html (9,431 bytes)
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