[Jukebox-list] 2505 tube was Seeburg 220

[Ron Rich]

Joey,
  I am not sure what the difference(s?) are--but they will interchang in a Seeburg. "Strikes" I assume, means "fires". This still does not tell me that the tube will fire in the "read out" circuit. Many tubes will operate in the trip-off circuit, but will "screw-up" if used in the stepper, or read out circuits. Ron Rich

Joey McDonald <joe400f at shaw.ca> 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

----- Original Message ----- 
From: "Ron Rich" 
To: "Jukebox mailing list" 
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 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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