Nice and clean work Gary. When looking at your layout I wonder why those power tube screen resistors are assembled like they are. To me it looks very unsafe way to have components where you have hundreds of volts. Is there some technical reason for that?????HarryLiverpool Jeanette
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Liverpool Jeanette
Nice and clean work Gary. When looking at your layout I wonder why those power tube screen resistors are assembled like they are. To me it looks very unsafe way to have components where you have hundreds of volts. Is there some technical reason for that?????HarryRe: Liverpool Jeanette
Believe me, if you've ever had to replace them you'll realise how solid they are. That's a pretty stiff solid core cable with the resistor wires wrapped round before being soldered. That forms a unit that's quite solid in its own right that's then anchored in 4 places on the tube sockets, ideally doubled back there as well.
When it was reported recently that Liverpools should have 1K5 rather than 1K screen resistors I replaced mine, and spent more time than I'd care to trying to coax them out without damaging the wiring and/or tube sockets.
When it was subsequently reported that Liverpools do indeed have 1K screen resistors I had the opportunity to replace mine again, was expert at this stage, and it was still a pain to free them.
Properly mounted they're going nowhere.
When it was reported recently that Liverpools should have 1K5 rather than 1K screen resistors I replaced mine, and spent more time than I'd care to trying to coax them out without damaging the wiring and/or tube sockets.
When it was subsequently reported that Liverpools do indeed have 1K screen resistors I had the opportunity to replace mine again, was expert at this stage, and it was still a pain to free them.
Properly mounted they're going nowhere.
Re: Liverpool Jeanette
Harry,
+ as per Paulster. They are more study/stable than they appear.
As for the technical aspect it all has to do with the lead dress and sensitivity of the builds. The Rocket is laid out the same way. I believe that is the reasoning behind it.
Gary
+ as per Paulster. They are more study/stable than they appear.
As for the technical aspect it all has to do with the lead dress and sensitivity of the builds. The Rocket is laid out the same way. I believe that is the reasoning behind it.
Gary
In the 60's people took acid to make the world weird. Now the world is weird , and they take Prozac to make it normal.
Re: Liverpool Jeanette
I believe you guys. I was just only wondering what Ken had in his head when doing things like that. Maybe there is a technical explanation to do things this way. HarryRe: Liverpool Jeanette
You can mount the screen resistors on the circuit board and run wires to the sockets, you won't hear any difference, at least in my experience.
Re: Liverpool Jeanette
I have made one Express, one 2xEL84 Liverpool and a mini Express with 2xECL86 tubes. In all those amps I have mounted screen resistors to board without problems. I only would like to know if there is some real reason to mount resistors like that. By now I have not seen that method in any other tube amp.