Fun experiment! Thanks for sharing. A coincidence, I am playing around with my tube stuff for the first time in a couple years, and this video pops up. The ability to use the 16 ohm tap on my tube amps with sensitive speakers really sings. Some electrical advantages to be sure. Less output winding, more in the amps sweet spot, easy load. I like tubes in the winter, but prefer good solid state for my music tastes overall. Fun though!
Great and very informative video. One of the tricks that I sometimes use when designing or modifying an amp is by building a filter into the feedback loop by adding capacitors to control the amount of feedback at higher or lower frequencies. You can really optimize the sound and like you were saying at the end of your explanation you could opt for a more bass heavy bottom end while retaining the lush Midrange and delicate Treble. You just have to be careful that you don't change phase angles too much and destabilize the amp and sent it into oscillation. You need to put it on a scope and check for this which of course you should always do when experimenting with changes to an amplifier. Ir would be a shame to burn up those expensive tweeters or red plate tubes without noticing. Hope to see more interesting videos.
I wish all the subjective listening tests had the accompanying measurement and technical side of it. Great partnership. Hope to see some more like of that. I'm a happy subscriber that hasn't head from you in a while (algorithm?) . I will now manually look again for your channel and turn on notifications. Cheers.
@ Interesting . In Australia we need do an Apprenticeship as an Electronics Technician 4 years Trade Training by a qualified Licensed Tradesman . Eg Legally need to have an Electrical License to work on equipment.
Pedro's Channel: www.youtube.com/@DeAudiofilosyLocos
Great work, your results are pretty much what I have found over the years👍
Nice test that I always want do, thankfully you did it .
Fun experiment! Thanks for sharing. A coincidence, I am playing around with my tube stuff for the first time in a couple years, and this video pops up. The ability to use the 16 ohm tap on my tube amps with sensitive speakers really sings. Some electrical advantages to be sure. Less output winding, more in the amps sweet spot, easy load. I like tubes in the winter, but prefer good solid state for my music tastes overall. Fun though!
Great and very informative video. One of the tricks that I sometimes use when designing or modifying an amp is by building a filter into the feedback loop by adding capacitors to control the amount of feedback at higher or lower frequencies. You can really optimize the sound and like you were saying at the end of your explanation you could opt for a more bass heavy bottom end while retaining the lush Midrange and delicate Treble. You just have to be careful that you don't change phase angles too much and destabilize the amp and sent it into oscillation. You need to put it on a scope and check for this which of course you should always do when experimenting with changes to an amplifier. Ir would be a shame to burn up those expensive tweeters or red plate tubes without noticing. Hope to see more interesting videos.
@@kellywilson2858 I should have done a bode plot at both test NFB levels. Unfortunately the amp is now sold. I’ll have to build another one!
I wish all the subjective listening tests had the accompanying measurement and technical side of it. Great partnership. Hope to see some more like of that. I'm a happy subscriber that hasn't head from you in a while (algorithm?) . I will now manually look again for your channel and turn on notifications. Cheers.
You can check out the links in the description. Look for the negative feedback video and that should have the info that you are looking for.
Great Video. Are you a qualified Electronics Technician. New Subscriber from Australia
I repair audio electronics for a living but I do not have formal electrical engineering training. I hope this answers your question.
@ Interesting . In Australia we need do an Apprenticeship as an Electronics Technician 4 years Trade Training by a qualified Licensed Tradesman . Eg Legally need to have an Electrical License to work on equipment.
How do you say parapelodromo in English? 🤣