Re: New Item - Tweed Princeton 5F2A chassis

[goangling]

Hi - Just purchased this chassis, an wanted to know if it made in USA?  Just placed the order can't wait to start my 1st build.  For the Princeton - Can you help me with thw AWG 18 and 20 ga wire.  What goes where?  Heaters get 20?

Thanks.

[EL34]

You would have to ask Mojo where they are made
I am a mojo distributor and I get them from Mojo


Look at the instructions on the library page
It has wire suggestions


look at all the documents for the 5F2A on the library page
Lots of good info there

[p2pAmps]

Welcome to the Hoffman Forum.  You will find a wealth of information here both from members and on Doug's Library pages. 

[sluckey]

I would not bother with 18 gauge wire inside a 5F2A chassis. 20 is fine for everything.

[PRR]

Welcome!

> AWG 18 and 20 ga wire.  What goes where?  Heaters get 20?

FWIW: Heaters is the only high-current (fat wire) circuit in a Champ/Princeton. #20 is -smaller- than #18(*). So if you have both, use the fatter #18 for heaters.

However I agree that the smaller #20 is fine for everything in an amp like this. Especially if you can run the PT heater wires directly to your first big tube; then the rest is even lower current.

(*)Wire gauge numbers run "backward". You make wire by hammering-down 1/4" copper rod. A couple hammerings makes #2, the fat stuff from the street to your house electric meter. Dozens more hammerings makes #45, the hair-thin stuff in pickup coils. ("Hammering" is now "drawing": pushing a tapered end through a smaller hole and pulling very hard. Still needs many steps to work it down. The gauge number is roughly the number of steps down from a rod.)