Yes, basic things were confusing back then, but clear minded men always existed to think "hey that is a weird notion, lets look again into it"...radio days...when audio was king of entertainment.
An externally hosted image should be here but it was not working when we last tested it.
I think a tot of people, even today, like bandwidth limiting.
Some time ago i had a visitor, a guy maybe 20 years younger then me, working in real estate.
I sat him in the sweet spot of my system and played at what i would call medium volume.
After a short time he requested that i reduce the volume much and after some minutes more he remarked he had " enough". I call that " information overflow ".
It needs some experience to appreciate high end sound and some or even most will never get it.
Some time ago i had a visitor, a guy maybe 20 years younger then me, working in real estate.
I sat him in the sweet spot of my system and played at what i would call medium volume.
After a short time he requested that i reduce the volume much and after some minutes more he remarked he had " enough". I call that " information overflow ".
It needs some experience to appreciate high end sound and some or even most will never get it.
This is interesting :http://www.diyaudio.com/forums/parts/97030-bd139-16-bd140-16-anyone-use-these-transistors.html
I did not know that the capacitance between collector and base can simply be measured with a meter. The thread also talks about differences of the same transistors from different brands.
I did not know that the capacitance between collector and base can simply be measured with a meter. The thread also talks about differences of the same transistors from different brands.
Yes it can, I had done that to verify large Toshiba BJTs I got from random sellers against older trusty sourced ones.
P.S. Not any more informative than comparing for fakes at sow low Vceo a meter provides of course. Bit overblown but follows.
Here a point is made that even very small deviations in phase and frequency response can be audible if the Q of that resonance is higher then 0.5 :
Is it possible to raise resolution in the 0-2V region for the Vce/Ic graphs to show quasi-saturation? This is an area where the BC5xx, BC3xx and SA1015 excel, and where almost all transistors with Vcemax>50V fail. It is important for current mirrors where Vce can be very low. The most important points are at Vcb=0V and Vcb=.6V.
Quasi-saturation modeling is not present in the vast majority of BJT models and presents a large barrier to reproducing in real life the quality of simulated circuits.
Quasi-saturation modeling is not present in the vast majority of BJT models and presents a large barrier to reproducing in real life the quality of simulated circuits.
About 3 weeks ago I got me a few new lab supply's to test amplifiers, both 60V 8A. For this I needed to build a controller, to be able to control both (at the same time 🙂). So here it is (if you wanted to know, otherwise please ignore my post).
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Why not 🙂, I just thought that this would be more universal, and I can control max current better. And I think that a good variac will be more expensive.
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Who is Dave Jones's (except for the Pirate) and where to find hime (besides on his ship 🙂).