I had a long, contentious conversation with someone recently on another forum regarding twisted filament wires. After citing several examples and noting that transmission line theory governs this subject, I was eventually accused of being a bully. I'm not going down that road again, but I'll address the issue of three wires. If it was me, I would just twist or wire-tie them together in a bundle and test it. Route them in such a way that you can add a shield if they cause problems. You can slip a length of tinned braid over them, heatshrink it and ground it. Alternately, you can use a section of shielded 3-wire line cord.Looking for opinions as how to best dress the heater wiring for the 866A's I am using. The transformer is a 5V and the tubes will be run in series. Twisting the leads doesn't seem to be beneficial as there still will be long sections of non-twisted wire.
The B+ wire also seems to be problematic as well as the wire connecting the two sockets.
A side question would be, how would you deal with three wires that are carrying AC? Twisting them seem that it would lead to asymmetrical cancellation.
Care to share a link to that thread?I had a long, contentious conversation with someone recently on another forum regarding twisted filament wires. After citing several examples and noting that transmission line theory governs this subject, I was eventually accused of being a bully. I'm not going down that road again, but I'll address the issue of three wires. If it was me, I would just twist or wire-tie them together in a bundle and test it. Route them in such a way that you can add a shield if they cause problems. You can slip a length of tinned braid over them, heatshrink it and ground it. Alternately, you can use a section of shielded 3-wire line cord.
Jack
The wires are at the opposite end of the chassis from the signal portion. It would be easy to shield all the wires with sleeving I have and ground them to the chassis though.Looking at the image you posted, I would just keep them down against the chassis and move forward with the project. It's likely this won't be a problem.
Provided you pay attention to the real power rating, there's nothing at all wrong with these. In fact in many instances it's much easier to find non-inductive versions of these than anything else!I was going to use a couple of those aluminum bolt down resistors you dislike