Blackstar HT Stage 60 Replace Tubes and Bias DANGER NOT SAFE THIS CAN KILL YOU!
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- Опубліковано 10 лют 2025
- Blackstar HT Stage 60 Replace Tubes and Bias DANGER NOT SAFE THIS CAN KILL YOU!
Not all my methods are recommended.
Basic info is accurate.
EuroTubes - JJ Tubes - Tube Probes
Thank you for posting this video and telling which order the tubes go, into the preamp slots. Great video, very helpful,including the information on Biasing the power tubes. The Preamp V1slot ECC83, V2slot ECC83, V3slot ECC82. Mine has two 7025/AX7WA's in place of the two ECC83's.
Thanks.... Your video gave me the confidence to do this myself. Although.... I think your blackstar is warping space-time.
Because its been asked by a few comments : 26:12 He sets the bias to 35mA (I think he meant 35 mV)
yep probably
DUDE. Which way do you the tubes in? Those two. I just took of them out and now have no idea which way to put them back in!
Is it necessary or required to bias the tubes? Specifically the preamp tubes?
You.need to spread the bear claws open before removing the tubes. Doing it that way can pull the glass loose of the base
Hello Chad.Just wondering if you ever use anti-oxidant spray to clean the pins of tube or tube socket connectors. I haven't as yet cleaned my my sockets and tube pins.Thanks,Tex.
I added a few notes to my video. Hope it helps..
Is this an MkII? For some reason I read on a forum you can’t bias the MkII, I only ask since I have a blackstar MkII kentucky special and I have it sent to a tech to change the tubes, I had read before most blackstar don’t need to be biased but for some reason I can’t find that information. Cathiod based amps don’t need to be biased right? Just fixed biased amps?
Not sure if this is helpful being it’s a few months back.. but these amps including the 40watt Kentucky are 100% bias able, I’ve ran 6l6 and el34 in mines and rebiased to recommended specs and they work like a charm. 🤘🏼
And what's the plate voltage on each tube at the time they are being biased? Need this to verify power dissipation for the tube type and desired setting
Am a I wrong but you need to plug in your speakers not the input jack for your guitar?
What's the spec on the tubes you're biasing? Very important
I just use vise grips to pull those pesky 12ax7s out.. 🔧🔧🔧
😂😂😂😂😂
So the ECC 82 goes in the slot that is nearest to the power tubes right?
I finally posted a video on how to BIAS without probes.
Cool ... I'll watch 😃
Didn't see a video up ... Post a link 😃
ITs still uploading. didn't expect such quick response.. LOL
+Roger Bates ha ... Yep I am quick usually😜
Ok i'ts almost done
are those the octoal probes or the 9 pin ones? cheers
Nice shirt.
If ever a post needed editing. ..This is it.
Paul Rowlatt yep probably
Chad - nice of you wanting to help others with your BIAS experience BUT this has to be one of the worst "How-To" videos I watched.
A. W. Yep probably
What did you set the bias too when you did this?
26:12 he says 35mA (I think he meant 35 mV) 🌹
You're right... your video damn near killed me. Here's a non-expert learning how to work on an amp while we watch... and nah... let's not hear a before and after.. that would be silly.
Lol 😃. Yep I got rid of it because it sounded like a wet blanket on top before and after ... So you weren't missing anything 👍🏻 peace
+Chad Boston Lol, that sucks. I was debating getting one of these, but I did notice that it's not a very bright amp.
+Dartheomus yes exactly... But I am totally sold on my line 6 helix and my line 6 Firehawk 1500 amp... Thanks for watching 😃
Damn, paint me envious. I really want to check out that Line6 Helix, but I wish it was a little more affordable! :)
love the part of. "there in, there are bias. was very simple" and nothing was explained. lol.
This video had a good idea. that's was it. just learn of how bad smoke is...
What did you set the mv to when you bias it? 50mv?
26:12 he says 35mA (I think he meant 35 mV) 🌹
This is very bad, load s of vids on UA-cam on biasing amps, if you want to do it correctly and safely watch Uncle Doug & D-Lab, these guys know their stuff. I suggest you get a decent meter, learn to use it do a few maths and bias properly .
What tubes did you install?
You don't need to plug your input in to bias an amp
You do on blackstars... where's the stand by switch?... in the input switching jack... doh!
just edit this thing and make it simple, otherwise thank you for trying to help
I biased mine up to 70mV
Volts cant kill amperage does.
What if I run you over with my Voltswagon.. then what? 😆😆😆