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How to Breadboard a Vacuum Tube Preamp (6SN7) - Part 1 

Blueglow Electronics
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30 окт 2024

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Комментарии : 24   
@Blacklionguitarist
@Blacklionguitarist 6 лет назад
Awesome! :D I'm the grand daughter of a master electrician, and as a musician I've always wanted to build my own tube pre-amp! You made all of this sound easy!
@Moonbrony
@Moonbrony 7 лет назад
Those little boards are such a simple idea but incredibly useful. I'm also going to build myself a big breadboard system like that one too.
@Finom1
@Finom1 7 лет назад
Great educational video. Thanks for telling us where to buy the parts. Looking forward to part 2.
@romanbarrett5359
@romanbarrett5359 4 года назад
I really enjoy your videos I appreciate all the information .
@tommyausburn
@tommyausburn Месяц назад
04:35 Photo Board PB-503 I guess there's not going to be a part 2? Too bad, Mark, this is really helpful.
@vacuumelite2065
@vacuumelite2065 4 года назад
Fantastic stuff. Thanks 👍😊👍
@boonedockjourneyman7979
@boonedockjourneyman7979 6 лет назад
I know, I know, I will be called a FANBOY! Screw it. These episodes are absolutely vital. Please do more. You know why. Just ask that young EE you talked about.
@xXBocephusXx
@xXBocephusXx 7 лет назад
Thanks for the excellent video!
@vacuumelite2065
@vacuumelite2065 4 года назад
Really, really gooood. 🙂🙂
@gizmothewytchdoktor1049
@gizmothewytchdoktor1049 7 лет назад
now this is a time and effort saver ;->
@scottcarlon6318
@scottcarlon6318 6 лет назад
Somehow i missed where to order the little circuit boards that the socket bases attach to. If anyone knows please drop a link. Thanks.
@scottcarlon6318
@scottcarlon6318 6 лет назад
Woops, watched again and got the info. I’m slow today....lol.
@pinklady7184
@pinklady7184 7 лет назад
Is that a chopstick or knitting needle you are holding? For all the enthusiasts, you deserve million views.
@JustShortOf
@JustShortOf 6 лет назад
I really like those sockets for making adapters for bread boarding. You only briefly mentioned where you get them. Could you let me know? Thanks!
@rangerdoc1029
@rangerdoc1029 5 лет назад
He sells them on Ebay. user t_blizzard
@RobertKohut
@RobertKohut 7 лет назад
Nice!
@larryshaver3568
@larryshaver3568 Год назад
is a 6SN7 a twin triode?
@joemartin6439
@joemartin6439 2 года назад
I have no idea how to use the board , I just need a nice tube preamp
@bzuidgeest
@bzuidgeest 7 лет назад
almost 10 minutes explaining a breadboard.... Now I'm all for teaching, but maybe people that do not understand breadboards without explanation should not be building tube amps. Give them a transistor or something. Something less likely to zap them. Also the datasheet for the adapters had a caution related to breadboard breakdown voltage. Most breadboard datasheets (are far as they exist) do not mention this and you do not want stuff to arc over. Do you actually have info on this (genuine question)?
@bzuidgeest
@bzuidgeest 7 лет назад
replying to myself: found one on mouser www.mouser.com/ds/2/172/S-400_datasheet-952715.pdf. 1,5 amp 36v..... as a official breadboard limit, that seems low for a tube amp :)
@Blueglow
@Blueglow 7 лет назад
That's why I mentioned you wouldn't be able to build much more than a preamp stage. You can overcome the voltage rating by not using rows side by side as I mentioned several times in the video. I know many pros that do this all the time. If you don't feel safe, please don't do it. As for the 10 min on breadboard, that's what the video series is about.
@bzuidgeest
@bzuidgeest 7 лет назад
Blueglow Electronics To be fair, I might have missed some of those comments by skip skipping through most of the breadboard explanation stuff. the showing off the actual socket adapters available where far more interesting.
@mikesamra9126
@mikesamra9126 7 лет назад
I have a question on the western electric 142a amp. I posted over on video a few days ago but you may not have seen it. Anyway,there is an awful lot of gain and I did a freq sweep and it rolls off about 3db down at 20khz and the 1khz sq wave looks terrible at over 5 watts. I noticed the circuit is unique and I was going to wire it for a williamson and move the GFB loop to the first stage.The amp would then be much more stable I would guess for audio use. You can do this without any physical mods to the amps and they could all be reversed, I just didn't like the 24% distortion I got at 19 watts and like .23% at 9 watts. Did you try doing anything with the FB Loop or the circuit in general? Your 142a seems to sound decent over the the video.
@Blueglow
@Blueglow 7 лет назад
this circuit works great as is. no need to modify it. you have some faulty components (leaky caps, out of spec resistors, etc.) if it's not working properly. I'd focus on getting it working as-is over trying to change something designed by one of the best engineering companies to ever exist.
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