On Monday, April 15, 2019 at 11:53:37 PM UTC-4, Spare Change wrote:
On Apr 13, 2019, wrote
(in ):

What do you guys use for chassis wiring on old tube gear?

In the old days, when I needed to replace some bad wires in an old tube
radio, I just salvaged some from old tube tv sets. But dont have them
anymore. Looking on places like ebay, I see suitable sized wire, but
most is rated at 300v or usually less. MUCH LESS.

My local hardware stores have "Automotive wire" which is generally
thicker than I need, but also rated at lower voltages than what is in a
lot of tube gear.

Personally, I cant see that thick insulation failing at 500v or so, but
it is a concern.

Look for MTW wire (€œMachine Tool Wiring€�). It has high strand count,
finer strands. Most sizes have 19 or greater strands. Easy to bend.

Its commonly found in marine supply stores because its used in boats.

600 volt rated.

Hookup wire is typically 20 AWG, and is often solid wire. I posted a link to a kit of six, 225' rolls for $16. that 19 strand wire is probably THHN with a nylon overjacket, like I used for commercial fire alarms. It is not suitable for point to point wiring on a chassis, unless you are not capable of doing anything right.