Need help Identifying choke

[Justwantdahifiaudio]

Can some please tell me what size this choke is? It looks familiar I’ve seen the same size in other sweep tube amps.

 

[Crusher]

Sorry, I do not know. Do you have a LC meter to measure?

 

[Justwantdahifiaudio]

I have this to work off..

 

[DoctorAudio]

20 Microhenry, probably 500ma to 1000ma

 

[nomadradio]

I believe Dr Audio is right. Maco used a bunch of this choke.

73

 

[144inBama]

The one in a DX500V is a 10uH I'd have to pull it out to make sure, but looks identical.

 

[Crusher]

Yes, Texas star uses a 10uH choke. I have a few spares. Have seen those go up in smoke.

 

[Justwantdahifiaudio]

This is a much larger choke then you would find in a Texas star... probably double the size

 

[DoctorAudio]

Maco choke:

 

[Justwantdahifiaudio]

Doctor audio that’s the one ....

 

[Justwantdahifiaudio]

Next question would z-14 chokes work? I’ve seen them in macos and phantoms I’m sure theres others but personal seen those.. pretty sure 44uh

 

[Justwantdahifiaudio]

Looks like they are getting hard to find

 

[DoctorAudio]

A Z14 would work but a Z28 would be closer to the original value at 21 Microhenry. RFParts has them in stock!

 

[Crusher]

You can find the Z-14 on eBay a little cheaper sometimes. Mouser carries but they want almost $30 for 1.

 

[Justwantdahifiaudio]

Would something like these work? I used them on a sb220 once but it was on the grid side..