2 newbe questions

Hilly-wa · 14th November 2007, 03:54 PM

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

Sherman · 14th November 2007, 11:49 PM

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.

ray_moth · 15th November 2007, 02:24 AM

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.

14th November 2007, 03:54 PM	#1
Hilly-wa diyAudio Member Join Date: Feb 2005 Location: Virginia	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 __________________ Hilly-wa

14th November 2007, 11:49 PM	#2
Sherman diyAudio Member 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. __________________ --Sherman

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15th November 2007, 02:24 AM	#3
ray_moth diyAudio Moderator Emeritus 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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