|20th March 2012, 08:17 AM||#11|
Previously: Kuei Yang Wang
Join Date: Nov 2002
Where in your case pushing the 300B towards "45" Operation and sacrificing power for finesse is a great choice, as you have much greater efficiency, your friends Speakers need something that can push a bit harder, IMHO, unless he only listens to "Girl & Guitar" Music and Baroque chamber ensembles and recorder solos...
If you friend likes the Amp you have he may not like the AN Kit as much, it has a different "tuning" in sound. It is hard to describe the difference and I do not not want to sound like criticising a competitor.
Both are good but different choices for your friends Speakers and ideally your friend would try to listen to a commercial or Kit AN Amp as well before deciding.
|3rd August 2012, 10:31 AM||#12|
Join Date: Mar 2010
Location: Hawkes Bay
Took a chance on a pair of Diy Hi Fi clearance Shuguang 205D tubes.
Any Idea what might be the 'best' bias and B+ values
if fitted in the 'simple 300B amp' ?
Any idea if these valves could or should be used in a Tram 11 ?
Do you have any experiance with 'filament bias'?
ie running the filament and anode currents through a suitably sized
cathode resistor. The idea being to reduce the valvue of the cathode resistor
and eliminate the need for a cathode by pass cap.
It occured to me that i could use DIY HIFI filament supplies on say D3As
to do just this. Any thoughts, thanks Kevin.
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