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Old 4th July 2012, 05:57 PM   #2601
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I think I got the same value for R5 on the one I built yesterday (235K-ish), but all of the voltages are good and the amp runs identical to my other one. I'm building another tonight, I'll see what R5 is on that one and post back.
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Old 4th July 2012, 10:11 PM   #2602
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Guys...can anyone recomend me a good pair of - 8.4V NiMh >= 170 maH "9 volt" Rechargeable Battery to buy on ebay?

I don't know what to choose...theres so many chine things there...:S
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Old 4th July 2012, 10:26 PM   #2603
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NWAVGUY recommends purchasing from here. 4 Rectangular 9V 250mAh NiMH Rechargeable Batteries items in All-Battery Center store on eBay!
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Old 4th July 2012, 10:31 PM   #2604
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Quote:
Originally Posted by fenderf4i View Post
they can be 200 or 250 mAH ??
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Old 4th July 2012, 11:34 PM   #2605
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It was designed for the 250mAH batteries. Definitely go for them over the 200 for battery life.
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Old 5th July 2012, 10:30 AM   #2606
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i'm thinking in buy this ones:

2Pcs New Rechargeable 9V Volt Low Discharge Battery 9 V | eBay

whats the difference between this ones (Low Discharge) and the other ones available there?
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Old 5th July 2012, 12:48 PM   #2607
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i'm thinking in buy this ones:

2Pcs New Rechargeable 9V Volt Low Discharge Battery 9 V | eBay

whats the difference between this ones (Low Discharge) and the other ones available there?

BTW....can anyone recommend a transformer from ebay?
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Old 5th July 2012, 02:11 PM   #2608
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NiMH batteries lose a certain amount of charge when they sit unused for long periods of time. The low-discharge batteries are less susceptible to this.

I would say that if you're actually going to be using the amp, self-discharging won't be an issue and the extra battery life is more desirable in the 250mAH battery. If the amp is mostly going to sit in a drawer unused, then get the low-discharge ones.
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Old 5th July 2012, 02:14 PM   #2609
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thanks for explanation fender4i....related to the transformer...any sugestions?
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Old 5th July 2012, 04:21 PM   #2610
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@VJK I just finished another one, and the R5 measured 245K on it also. It looks like a perfectly normal value to me - all 3 of the amps I've built have measured that, and they work flawlessly.
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