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Post subject: Blues Jr. tube retainer
Posted: Wed Feb 05, 2020 12:16 pm
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Looking at the tube retainer under the two power tubes attached with springs, it doesn't appear straight. Is this because how the springs are attached? It makes it look like one tube is longer than the other.


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Post subject: Re: Blues Jr. tube retainer
Posted: Wed Feb 05, 2020 1:41 pm
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Location: Province de Québec, Canada
Show pictures,

Output tubes have the same lenght
12XX7 tubes have also same lenght

Check if they are well seated in their sockets..


Image[url=https://flic.kr/p/2ipBRZP]


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Post subject: Re: Blues Jr. tube retainer
Posted: Wed Feb 05, 2020 7:39 pm
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I took them out and verified they were the same. One is slightly longer than the other making the retainer slanted.


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Post subject: Re: Blues Jr. tube retainer
Posted: Thu Feb 06, 2020 2:07 am
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mallen wrote:
I took them out and verified they were the same. One is slightly longer than the other making the retainer slanted.


Are they the same brand ? I guess not.

I don't know if different tubes brand ( or vintage and modern ? ) may have different lengths. I guess it could be.

You may have bought second hand amp. ?
Are socket have same lengths. ? Previous owner may have on socket replaced ?

Report

Tubes retainer do not need to be straight, amp will work with no issue.


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Post subject: Re: Blues Jr. tube retainer
Posted: Thu Feb 06, 2020 5:23 am
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I bought it new in the box. Same brand and values. They are Groove Tubes. Just one is slightly longer.


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Post subject: Re: Blues Jr. tube retainer
Posted: Thu Feb 06, 2020 5:34 am
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mallen wrote:
I bought it new in the box. Same brand and values. They are Groove Tubes. Just one is slightly longer.


Groove Tube do not make tubes, they rebrand different tubes manufacturer.
Post picture.


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Post subject: Re: Blues Jr. tube retainer
Posted: Thu Feb 06, 2020 9:22 am
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Maybe they grabbed one from two different manufacturers.


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