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-   -   Can't find 5y3 on Hickok 539b roll chart! (http://www.diyaudio.com/forums/equipment-tools/180386-cant-find-5y3-hickok-539b-roll-chart.html)

famousmockingbird 4th January 2011 02:04 AM

Can't find 5y3 on Hickok 539b roll chart!
 
I have looked a hundred times and can't find it on the roll chart:mad:. I find this strange because the tester itself uses one. If anyone can tell me the switch selector settings I would greatly appreciate it.

famousmockingbird 4th January 2011 07:15 PM

Bump

bob91343 4th January 2011 10:07 PM

It's identical to type 80 except for the pin numbers. Look in any tube manual and you will see the conversion. Or set up for 5U4 and change the adjustment to that of the 80.

famousmockingbird 4th January 2011 10:15 PM

Thanks Bob, so if I am hearing you correct the type 80 is the same except has a 4 pin socket base. So I set the tester up for a 5u4 and adjust the shunt settings to that of a type 80?

Bill_P 4th January 2011 10:24 PM

Code:

Tube Fil  Selectors  Bias  Shunt  Press  Min Mut Cond  Notes
5Y3  5.0  JS-0600-0  0.0  80      P3    G  *              Plate No. 1
5Y3  5.0  JS-0400-0  0.0  75      P3    G  *              Plate No. 2

* Emission test only, good tubes read above mark Rectifiers and Diodes OK.

Short on position A is normal


famousmockingbird 4th January 2011 10:29 PM

Thanks Bill_P that is exactly what I was looking for.


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