I am building a Champ copy tube amp and I want to add a DI transformer. My question is on placement. Do I put the Jenson jt-db-e DI Transformer directly across the 6V6 tube, capacitor coupled 0.47uf, like a parafeed transformer? I want to get the amps sound going to the mixer.
I have no idea why.
If your intent is to play that Champ LOUD with no speaker connected, you want to know about dummy loading. Or buy a crate of Champ OTs.
If you want to NUKE that tiny Jensen transformer, go ahead.
I doubt it can even stand Speaker voltage, go figure.
I would not feed it more than 1 volt.
Use a voltage divider across speaker out, think 470 ohm series + 100 ohm to ground.
Wire Jensen transformer primary in parallel with 100 ohm resistor.
And never ever leave OT secondary unloaded; at least use a 4 or 5 ohm resistor, 10/15 W.
It is specified for a max +22dbu and 250VAC (so you might not kill it straight away) but the datasheets are set up for much, much lower signal levels e.g. +4dbu
Read the flipping manuals.
Data sheet
If in doubt, start with this one.
Jensen application sheet AS008 JT-DB-E “Direct Box” for Very High Level Signals