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Old 13th August 2011, 09:18 AM   #11
marce is offline marce  United Kingdom
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Quote:
Good PtoP wiring layout is as important as PCB layouts, and one of its
advantages is it can be better, a lot better if the component layout
is determined by the wiring issues and not the other way round.
I dont understand this either, when laying out a PCB the importance of connections and connectivity determine how you place the components, not the other way round!
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Old 13th August 2011, 03:59 PM   #12
DF96 is offline DF96  England
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Build it as though it is RF, with short direct connections, as the valves don't know they are only supposed to amplify audio. Alternatively, copy a published layout exactly. Don't use long wires like a guitar amp, or tidy wires like military stuff.
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Old 13th August 2011, 05:00 PM   #13
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Quote:
Originally Posted by DF96 View Post
Build it as though it is RF, with short direct connections, as the valves don't know they are only supposed to amplify audio. Alternatively, copy a published layout exactly. Don't use long wires like a guitar amp, or tidy wires like military stuff.


Well, that makes two of us, at least!

I think that reading (parts of) 1950's ARRL Amateur radio Handbook when I was 12/13 years old 'messed me up' for modern wiring styles!
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Old 15th August 2011, 08:47 PM   #14
badman is offline badman  United States
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If one takes enough care, they can REALLY limit loop length by keeping resistors etc right at the socket.
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Old 15th August 2011, 10:20 PM   #15
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Originally Posted by badman View Post
If one takes enough care, they can REALLY limit loop length by keeping resistors etc right at the socket.
I find it tricky to do in practice, but I'm aiming toward that ideal. Using the center connection point of 9-pin (&7-pin) sockets is another thing that I tend to forget until the project is wired up. Then I see that connection point, and realize that I could have saved going to a terminal strip (and back to the tube).
Not so easy as it looks.....
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