Dummy load? 😉
Keep your trimmers long enough in the game, this makes it easier when you change your mind about bias settings.
/Hugo
Keep your trimmers long enough in the game, this makes it easier when you change your mind about bias settings.
/Hugo
Peter Daniel said:
Peter what did you use in your RC circuit? Would you still use the same circuit to bypass FRED's?
Regards
Anthony
I would probably not bypass freds anymore. I didn't think much about it when I paralelled 0.33 caps acros each diode. I just thought it would be better, but I'm not so sure about it anymore. The best way would be to compare both circuits in the amp.
I have been thinking about parallelimg FREDs lately to reduce thier in circuit resistance and further soften the output transient back EMF, any thoughts?
Anthony
Anthony
Paralleling device might bring the opposite results (degradation instead of an improvement). I would be cautious here as well😉
I paralleled bridges in my A75 amp once, as they were blowing too frequently. I think I got less detail because of that (slight haziness if you want, but I'm not so sure about it anymore; I don't remember when was a last time I was using big amps😉)
I paralleled bridges in my A75 amp once, as they were blowing too frequently. I think I got less detail because of that (slight haziness if you want, but I'm not so sure about it anymore; I don't remember when was a last time I was using big amps😉)
I find with Power supplies a good oscilliscope will reveal all there is to know about the effectiveness of experimentation. I find that an Oscilliscope is not a good indicater of how the output of a device will sound after a particular change.
I suppose a spectrum analyzer might be better suited for the task, but I find it all very subjective once equipment under test has achieved a certian level of competency.
Regards
Anthony
I suppose a spectrum analyzer might be better suited for the task, but I find it all very subjective once equipment under test has achieved a certian level of competency.
Regards
Anthony
OK, myabe to many typos in the first question to get an answer. As I really like to understand what I am doing when bringing the input caps into the game, here again the question:
For unbalanced connection I understand that you have connected simply a input-cap before the positive input of the schematic we all know. Ground of the RCA-Plug to ground of the circuit and Minus-input attached to ground with a cap same size as the cap at the positive input plus a 100Kresisor in parallel to ground (is the schematic right ?).
From Nelson I understood that the DC-conditions have to be the same on the input of the negative and the positive side, so I understand that you have coupled the negative input through the 100K resistor to ground like in a tube amp, but for what is the coupling-cap to ground good as there is no signal ?
For unbalanced connection I understand that you have connected simply a input-cap before the positive input of the schematic we all know. Ground of the RCA-Plug to ground of the circuit and Minus-input attached to ground with a cap same size as the cap at the positive input plus a 100Kresisor in parallel to ground (is the schematic right ?).
From Nelson I understood that the DC-conditions have to be the same on the input of the negative and the positive side, so I understand that you have coupled the negative input through the 100K resistor to ground like in a tube amp, but for what is the coupling-cap to ground good as there is no signal ?
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