12002: 2" OT

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vanhalen5150
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Re: 12002: 2" OT

Post by vanhalen5150 » Mon Feb 18, 2013 7:24 am

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Re: 12002: 2" OT

Post by vanhalen5150 » Mon Jun 03, 2013 7:04 am

Playing for a few hours this weekend. V4 has a dark tint to the glass now. Started getting some serious red plating on V5. I mean it was GLOWING!!! Trannys seemed normal temp.
Decrease in volume and some snap crackly pops. Shut it down. Waited an hour. Turned it back on for a few mintes, seemed fine.
I'll give it a go again and see if I can replicate with photo's or maybe video. Not sure the KT77's are really great for wide open.

Time to check all the voltages I guess. :?
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Re: 12002: 2" OT

Post by Strat78 » Mon Jun 03, 2013 9:41 am

Are you biasing to the hottest tube still? You are really mean to your tubes, didn't you blow a hole in the ceiling with a tube last year? :worthy:

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Re: 12002: 2" OT

Post by vanhalen5150 » Mon Jun 03, 2013 10:39 am

Strat78 wrote:Are you biasing to the hottest tube still? You are really mean to your tubes, didn't you blow a hole in the ceiling with a tube last year? :worthy:
Yeah. Thats the same position (V5) I blew the 6CA7 into the ceiling. It's been good ever since. I thought it was the tube but there must be more to it. I'll do up a voltage chart most likely. The KT77's sound thin and much brighter than other tubes. I think thats why guys like them for metal.
I havent hade this thing on the bench in quite a while. :palm:
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Re: 12002: 2" OT

Post by vanhalen5150 » Mon Jun 10, 2013 7:29 am

Redplating on V6.
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Re: 12002: 2" OT

Post by vanhalen5150 » Mon Jun 10, 2013 7:55 am

Vid. Not sure why its rotated. I had to cut it down to under 2Mbs to fit here.

I'm just kinda banging away on the strings to see when it occurs. I think Im playing Dream Theater or something on the playback. :lol: :roll:

This is after about 5 minutes.

Would you guys like me to TAB that out for ya! :shock:
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Re: 12002: 2" OT

Post by vanhalen5150 » Mon Jun 10, 2013 7:58 am

It looks like a Star Trek transporter beam.
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Re: 12002: 2" OT

Post by Strat78 » Mon Jun 10, 2013 9:59 am

OOOOH AHHHHHH, have they come for us at last? :worthy:
Re-flow everything in the neighborhood or try a new socket.

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Re: 12002: 2" OT

Post by vanhalen5150 » Mon Jun 10, 2013 10:29 am

Yeah, good thing its not in a headbox, because I wouldnt have seen it doing that.

I'm going to check all the voltages, move the tubes around. When it lights up there is a slight decrease in the volume and then it comes back up.

I never really knew what redplating looked like until I saw this. It looks purple in the vid a pic but its actually a bright orange/red glow.

Why do I find this exciting? :lol:
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Re: 12002: 2" OT

Post by rgorke » Mon Jun 10, 2013 1:27 pm

very pretty!!!!

Mine did that a while ago, the tubes wasn't seated well in the socket. However, since you were playing for 5 mins....not sure. Is this the same amp and socket that shot the tube through the ceiling?
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Re: 12002: 2" OT

Post by vanhalen5150 » Tue Jun 11, 2013 5:19 am

No. This something new. It's V6. The explosion was V5. That glass on the tube at V5 has turned a dark smoke color. On the bench doing some investigative work today.
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