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2 newbe questions
2 newbe questions
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Old 14th November 2007, 03:54 PM   #1
Hilly-wa is offline Hilly-wa  United States
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Join Date: Feb 2005
Location: Virginia
Default 2 newbe questions

1. Is a single c-L-C-L-C PS filter feeding B+ to both channels better than each channel having its own L-C?

Same total number of parts (and same values) on each configuration.

2. Any suggestions on battery bias with a 6c45pi? Type of battery? Size? Can I use a battery holder or should I solder directly to the +/- ?

Thanks in advance, Ed
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Old 14th November 2007, 11:49 PM   #2
Sherman is offline Sherman  United States
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Join Date: Feb 2004
Location: Chicago area
I'm not claiming to be an expert but here's my $.02.

1- The single CLCLC filter, given the same components, will be a cleaner power supply. Much more ripple with a single CL filter.

2- I haven't done battery bias myself but in my younger days we had a couple tube radios that had battery bias. They had a battery holder and snap-on leads. They worked great as long as the battery held out.
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Old 15th November 2007, 02:24 AM   #3
ray_moth is offline ray_moth  Indonesia
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Join Date: Jan 2004
Location: Jakarta
My inclination would be always to go for a combined PS for both channels, unless you're forced to separate them into monoblocs for bulk/wieght reasons. Crosstalk shouldn't be a problem with decent decoupling, especially with PP.
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