Kay 704 II info
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Stevem
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Kay 704 II info
As a aid to those of you who ever need to repair a 1966 Kay 704 gen II and not pull your hair out for ten minutes like I did last night please note that the whole power supply is negative, lol!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Re: Kay 704 II info
Kinda obvious when looking at the schematic...
https://el34world.com/charts/Schematics ... 04_2nd.pdf
https://el34world.com/charts/Schematics ... 04_2nd.pdf
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Stevem
- Posts: 5144
- Joined: Fri Jan 24, 2014 3:01 pm
- Location: 1/3rd the way out one of the arms of the Milkyway.
Re: Kay 704 II info
I don't always consult a schematic right from the start, do you?
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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thetragichero
- Posts: 478
- Joined: Tue Sep 10, 2019 7:46 pm
Re: Kay 704 II info
without a doubt i look for a schematic before doing anything else. I'm not experienced enough to be able to look at something that isn't working right and trace it. schematic gives me a roadmap of where to take voltage measurements to make sure I've got juice, where to scope to troubleshoot signal issues, etc
that being said having this thread and a link to the schematic in the google results will no doubt help the next guy looking at one thinking "huh?!"
that being said having this thread and a link to the schematic in the google results will no doubt help the next guy looking at one thinking "huh?!"
PRR wrote: Plotting loadlines is only for the truly desperate, or terminally bored.
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Stevem
- Posts: 5144
- Joined: Fri Jan 24, 2014 3:01 pm
- Location: 1/3rd the way out one of the arms of the Milkyway.
Re: Kay 704 II info
Sorry, but I am age 66 and have been repairing tube and SS electronics starting off at a TV repair shop when I was 16,so no I other then back in the day when trouble shooting a color TV 90% of the repairs I have done have been with out the need of a schematic other then confirming component values when something burns up!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Re: Kay 704 II info
I'm just a hobbyist. When I read your post my curiosity was peaked. Since this is predominately a tube discussion and I have never seen a tube amp with only negative voltages, naturally I had to look at a schematic to understand what you were saying, and more importantly, what you were not telling us. If you had mentioned PNP there would have been no puzzle and I would have simply turned the page.