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Post subject: Tube Help
Posted: Tue Apr 25, 2017 9:09 am
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Any Idea what these, are who made them, country of origin

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mud


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Fender Play Winter Sale 2020
Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 10:34 am
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Those look like Fender's special design 6L6GC's that date to the late '70s or early '80s. Fender relied on several US manufacturers to supply these, most prevalently Westinghouse and GE. These tubes were commonly seen in many of Fender's better designs of the era (Concert 75, Studio Bass, the final production run of silverfaces). "023556" is Fender's in-house P/N.

Arjay

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Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 10:57 am
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Retroverbial wrote:
Those look like Fender's special design 6L6GC's that date to the late '70s or early '80s. Fender relied on several US manufacturers to supply these, most prevalently Westinghouse and GE. These tubes were commonly seen in many of Fender's better designs of the era (Concert 75, Studio Bass, the final production run of silverfaces). "023556" is Fender's in-house P/N.

Arjay

Thanks Arjay I may gamble if the price does not go to high
mud


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Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 11:55 am
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Design of the getter rings, shape of bottles, and base looks like Sylvania. Very good tubes. :)

http://www.tubemongerlib.com/gallery2/v ... A.jpg.html


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Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 12:41 pm
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BMW2002Ti wrote:
Very good tubes.


That is, *IF* they're still good.

The age of these bottles is a significant factor for this premise.

Arjay

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Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 1:21 pm
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Retroverbial wrote:
BMW2002Ti wrote:
Very good tubes.


That is, *IF* they're still good.

The age of these bottles is a significant factor for this premise.

Arjay

Yeah that why I will only bid to a point as this is a total gamble
mud


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Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 4:27 pm
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:mrgreen:

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Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 8:01 pm
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Quote:
Design of the getter rings, shape of bottles, and base looks like Sylvania. Very good tubes. :)

I'm w/ BMW on the Sylvania call, Sylvania (Hygrade Sylvania Corp) 312 from 31st week of 1977.


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Post subject: Re: Tube Help
Posted: Tue Apr 25, 2017 10:45 pm
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I knew you guys would nail down the particulars.

Hopefully, those bottles still have some life left in them.

Arjay

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Post subject: Re: Tube Help
Posted: Wed Apr 26, 2017 6:49 am
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Retroverbial wrote:
I knew you guys would nail down the particulars.

Hopefully, those bottles still have some life left in them.

Arjay


Yeah me too! Really, the best way to test the tubes is put them in a working amp, with known plate voltage. And see if you can adjust the idle bias to a healthy current draw. Tube testers really don't test output tubes at working amp voltages and can only be used to see if the tubes are half-dead, shorted, or gassy.

Good luck with the bid. Sylvania made some very good 6L6GC. They were kinda ignored, due to the greatness of the RCA black plates and the GE STR tubes.


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Post subject: Re: Tube Help
Posted: Wed Apr 26, 2017 10:58 am
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Well I was doing well up to the 2minute mark and needed to up my ante so when I did, some how I got kick out with the message of a site problem, of course when I got back on the auction was over and out :evil: Oh well just wait for the next ones to roll around
mud


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Post subject: Re: Tube Help
Posted: Wed Apr 26, 2017 11:22 am
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Ain't computers grand?

:x

Arjay

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Post subject: Re: Tube Help
Posted: Wed Apr 26, 2017 3:59 pm
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Retroverbial wrote:
Ain't computers grand?

:x

Arjay

Yeah +1 on the grand :x


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Post subject: Re: Tube Help
Posted: Wed Apr 26, 2017 6:29 pm
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Perhaps it was divine intervention. Stick w/ your search patterns and you'll be rewarded eventually.


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Post subject: Re: Tube Help
Posted: Wed Apr 26, 2017 7:15 pm
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I'm curious to know what the winning bid was......

Arjay

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