| progress [message #30900] |
Wed, 09 March 2005 16:48  |
Manualblock
Messages: 4973
Registered: May 2009
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Illuminati (13th Degree) |
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O'kay; rookie mistake on the blowing fuse saga. While I wrapped the ends of the secondaries two tiny threads were touching inside one wrap; shorted secondaries, wouldn't you know it. Thanks be to the powers that be the trans did not fry.
So now we have lift-off. Good tube voltages and power out voltages. Except I have 300V on B+; is that normal. Next up is hook-up. I have pics too; I'll post after you C-Man.
After troubleshooting this I can wire the PS in my sleep.
I would like to say there is a need for a directory; witness the 5V on the heaters we both thought was correct. Also nice to have the secondary voltages listed again.
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| Congrats [message #30901 is a reply to message #30900] |
Wed, 09 March 2005 16:56  |
colinhester
Messages: 1349
Registered: May 2009
Location: NE Arkansas
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Illuminati (3rd Degree) |
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That's the one reason I hate using stranded cable and not solid wire. It's always one of those little strands that winds up causing problems. Please do not wait for me to post pictures. Fisrt, I need to learn the new camera amd second I need to post pictures, which I've never done.....Colin
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| coooooool! [message #30903 is a reply to message #30900] |
Wed, 09 March 2005 19:15 |
PakProtector
Messages: 935
Registered: May 2009
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Illuminati (2nd Degree) |
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Your B+ reading is bothering me. I would rather is was a hundred V lower. I suspect one of two possibilities. One is that you have not drawn enough current to make the choke behave itself properly. The second is that you have some other HV than 250 hooked up. L-C filtering of ~250 vac should yeild ~200VDC. Both are easy to fix. One requires only a few twists of R3's screw... BTW, the current measuring method Colin came up with is so nice to use. Confirm current in-circuit, and with the B+ on no less. But how does it sound?
regards,
Douglas
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| Re: coooooool! [message #30909 is a reply to message #30903] |
Thu, 10 March 2005 10:12 |
Manualblock
Messages: 4973
Registered: May 2009
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Illuminati (13th Degree) |
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Small weather related delay. My workspace isn't heated and it's 12 deg. Today should get some sound. Thanks T I will check the voltage readings again.
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