[Jukebox-list] 2505 tube was Seeburg 220

[John Robertson]

Joey McDonald wrote:
> Hey Ron and David,
>
> I checked the roll chart for my Hickock 533A tube tester and the 2050 
> is listed.
> It says " strikes at about 27 " whatever that means.  Sounds like when 
> tested you would get one pulse of 27 on the anologe meter.   The 2051 
> has a different dial setup but with the same results. Similar tubes?
>
> Joey McDonald
>
I would expect that what you are to do to test this tube is to set the 
dial at 0 and then it up, when it reaches around 27 the tube should 
conduct pinning the meter...

2050's either condut or do nothing...

John :-#)#
> ----- Original Message ----- From: "Ron Rich" <ronnnrich at yahoo.com>
> To: "Jukebox mailing list" <jukebox-list at lists.netlojix.com>
> Sent: Tuesday, November 27, 2007 10:05 PM
> Subject: Re: [Jukebox-list] Seeburg 220
>
>
>> David,
>>  If you have a tube tester that can check 2050 tubes, it's the first 
>> one I ever heard of---As far as I know, a 2050 will "fire" on a tube 
>> tester, but in "real life" the pulse is shorter, and a "weak" tube 
>> may not fire (fast, or "long" enough) in the jukebox.
>>  As for lubrication, I suggest that when you get a lube chart, that 
>> you use only a 20 wt ND oil in place of the "Seeburg oil", and that 
>> you NOT use the recommended grease--just a drop or two of the above 
>> oil on the areas that call for the grease.
>>
>> David <ve3bbn at sympatico.ca> wrote:
>>
>> David,
>> I would suggest that you purchase a set of manuals for the 
>> machine--and maybe a copy of my "Seeburg Mechanism Guide", and 
>> familarize yourself on the unit prior to doing anything else. They 
>> are available from many sources including www.alwaysjukin.com .
>> If I understand your problem, it could be a mechanical or electrical 
>> problem. Oil is most likely the cause if it's mechanical. Either lack 
>> of oil, or the use of incorrect oil can cause it. If electrical, the 
>> most likely suspect would be a bad 2050 trip tube. If it's 
>> mechanical, do not operate it until you determine and cure the 
>> problem, as it can, in some cases, cause further damage.
>> If you have "lubricated" (what I am thinking is) "the tracks", you 
>> have done something that never should be done. The "tracks" that the 
>> carriage rides on, should be clean and dry, so that the rollers roll, 
>> rather then slide.
>> Ron Rich
>>
>> Thanks Ron, much appreciated for your quick response and help. I did 
>> oil the tracks, so I'll clean them first thing. The 2050 is ok as per 
>> checking it with my Precision 9-66 tube tester.
>>
>> Thanks again Ron
>>
>> David ve3bbn
>>
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