Choke resistance too high?

[drewl]

Restoring an old Gibson EH150 that has a bad/open choke
Found a nice old one in an old piece of test equipment, but the resistance is about 350 ohms.

Think that's a little high?
Looks about the same size as the original, of course current rating is what matters.

The amp has a field coil speaker, so the choke is only for the preamp tubes.

With the interstate trans, this thing has 5 transformers!

[g1]

This is the 6N6 version?

[The Dude]

Hard to know without specs on original part. I did find this thread where the poster lists node voltages (first post).

https://el34world.com/Forum/index.php?topic=22675.0

You could tack the choke in and see how your voltages compare.

Is this the schematic for your amp?

[drewl]

I tacked in a 100 ohm resistor for testing, it dropped 30 volts.
I have the schematic at my work computer I'll link.

This thing is in real nice shape, with the matching Charlie Christian guitar the guy has.

Thanks.

[The Dude]

Oh, that's cool! Can we see a picture?

[drewl]

Hard to know without specs on original part. I did find this thread where the poster lists node voltages (first post).

https://el34world.com/Forum/index.php?topic=22675.0

You could tack the choke in and see how your voltages compare.

Is this the schematic for your amp?

[ATTACH=CONFIG]54943[/ATTACH]

Thanks for that link!

Aside from the handle, this thing looks almost new.
Filter caps enclosed in cardboard boxes were toast, so I made up replicas to house new caps.

The resistors were all within tolerance, and coupling caps aren't leaky, go figure.

I took chassis pix and will take more and get some of the guitar when I deliver the amp.