Choke question.

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Stevem
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Re: Choke question.

Post by Stevem »

Fly back diodes / arc protection diodes protect the tubes at the expense of the output transformer!

The diodes can't do anything until there is a arc and all too many times at that point the enamel insulation of the wire wound up in the core at some location has be burned through, and now there's your shorted primary in your OT!

Tubes on average run a lot less in cost then a OT does!
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norburybrook
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Re: Choke question.

Post by norburybrook »

Stevem wrote: Fri Jun 19, 2020 10:18 am Fly back diodes / arc protection diodes protect the tubes at the expense of the output transformer!

The diodes can't do anything until there is a arc and all too many times at that point the enamel insulation of the wire wound up in the core at some location has be burned through, and now there's your shorted primary in your OT!

Tubes on average run a lot less in cost then a OT does!
thanks Steve, that seems to be the wrong way round then, you'd be better off keeping your OT at the expense of a tube :D I wonder why no one does this resistor 'mod' ?

Is the scenario of this happening very rare? I personally have never had it happen. I've had the false center tap resistors save an amp. :)


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ChopSauce
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Re: Choke question.

Post by ChopSauce »

brewdude wrote: Fri Jun 19, 2020 6:00 am This is a small vertical 2x8 combo with tubes up.
Edit: I can’t figure out how to get the pic oriented properly. :?:
Not all image viewers seem to agree on the format for picture orientation. The solution is to edit the image with a dedicated software, like Photoshop or Gimp, the latter one being free - and well worth the money you spend for it... :wink:

See:
643BD4DD-EA40-4EB9-BC1F-EB261688BE5D.jpeg
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ChopSauce
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Re: Choke question.

Post by ChopSauce »

... & thank you very much for these valuable informations... :|
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