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  #16  
Old 11-06-2017, 01:19 PM
tom.j.fla tom.j.fla is offline
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Have a ? . Did you ring the fly you got from Eric H. It could be the wrong one or fil. voltage for the 1B3 is low or the 4.7K resistor in hv line is way high in value don't forget the 15 ohm resistor that's between the damper section and H. output plate section of the flyback. All the best, Tom.J
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  #17  
Old 11-06-2017, 01:40 PM
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miniman82 miniman82 is offline
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I don’t think so Eric, if there were anything wrong with it then it would have failed ring test or not worked at all. Boost voltage is low as well, there’s not much bootstrapping action going on. That’s what leads me to believe it needs more B+ in the first place, but I know nothing without seeing the spec sheet. I could see this exact thing happening if a fly was fed half the voltage it should have, but again I need proof.
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  #18  
Old 11-07-2017, 02:17 PM
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wa2ise wa2ise is offline
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Maybe you have the horizontal output tube plate connected to a wrong terminal, in that the output pulses are going thru too much of the flyback coil. That would lead to lower high voltage and lower boost...

Check with an ohmmeter (with the set off) and see if you find a terminal around half the resistance than that you have the output tube plate connected to. That terminal might be the one to use. If you do change something, test fire up the set and measure the voltages to see if they are closer to correct, and check the cathode current of the output tube (and check that the tube isn't red-plating).
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Old 11-08-2017, 07:48 PM
Crist Rigott Crist Rigott is offline
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Nick,
Do you happen to have a Ram p/n that you need. My buddy has a lot of Ram fly backs.
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  #20  
Old 11-09-2017, 08:51 PM
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Dave Tilotta Dave Tilotta is offline
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As an FYI, here's what my catalog has.



Last edited by Dave Tilotta; 11-09-2017 at 08:57 PM.
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  #21  
Old 11-09-2017, 09:36 PM
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miniman82 miniman82 is offline
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Crist, Ram number shown in Sams is X-129.

Dave, thank you for the info. I’ll compare it to what I have in the chassis, to see if it makes sense.
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  #22  
Old 11-10-2017, 10:25 PM
Crist Rigott Crist Rigott is offline
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Thanks Nick. Next time out we'll look for one and let you know.
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  #23  
Old 11-11-2017, 03:45 PM
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miniman82 miniman82 is offline
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Thanks!
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