RE: God is in the details!

Posted by grhughes on June 20, 2012 at 11:00:09

In Reply to: audio output transformer design posted by airfield on June 20, 2012 at 09:29:12:

Firat of all you need to read many books on the subject and they are rare to find. Secondly you will need a layer winding machine that is carefully controlled, an up and a down turns counter and can handle wire from about 32 awg to about 10 awg. You will need a winding mandrel that is designed for the core size and paper NOT PLASTIC core forms. You will need multiple spools of Phelps Dodge wire of different awg and different laquer coatings as there will be many interleaved windings and they need to be color coded to keep track of them. Layer winding means that each turn is laid down right next to the last turn and not scrambled wound. There can not be any wire crossovers! Next will will need some good laminations of soft iron, grain oriented C cores like permendur that has been annealed. Next you will have to hand stack the laminations or C cores as they are fragile and dropping one from a table to the floor will ruin that lamination or core as it will completely alter the magnetic characteristics. If you're good at it you could probably wind and assemble two in a day. It is very time consuming and tedious. You have to make copious notes as the start and stop of a winding and which winding is what. They you will have to tie off and connect all these windings. Interleaving means that there will probably be 5 secondary windings and 4 primary windings step interleaved each with different size wire and no of turns. There are many tricks that have to be learned on the job. There are many ways to stack laminations and different ways of winding each with their own advantaes and disadvantages. I'm not trying to take the wind out of your sails, just you need to know what you're getting into. A good book to start with is the RCA Radiotron Designers Handbook by Langford Smith, 4th Edition. Good luck! Ray

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Follow Ups Full Thread

Topic - audio output transformer design - airfield 09:29:12 06/20/12 (19)

RE: audio output transformer design - pictureguy 18:05:34 06/25/12 (2)

RE: audio output transformer design - airfield 09:19:51 06/26/12 (1)

RE: audio output transformer design - pictureguy 10:05:15 06/26/12 (0)

A very interesting NEW hobby to get into. Not for the faint of heart. - commentary 22:01:54 06/20/12 (2)

RE: A very interesting NEW hobby to get into. Not for the faint of heart. - drlowmu 22:09:53 06/20/12 (1)

No wonder for you the power supply means everything. - commentary 22:07:53 06/25/12 (0)

RE: audio output transformer design - JerryG 16:22:55 06/20/12 (0)

RE: God is in the details! - grhughes 11:00:09 06/20/12 (2)

RE: God is in the details! - 6bq5 11:19:52 06/20/12 (1)

Thank you! Very interesting! nt - grhughes 07:34:24 06/21/12 (0)

RE: audio output transformer design - DanK tubes 10:28:17 06/20/12 (0)

RE: audio output transformer design - drlowmu 09:59:12 06/20/12 (7)

RE: audio output transformer design - airfield 00:00:45 06/22/12 (4)

one good reason, one not so much - bwb 09:06:57 06/22/12 (3)

RE: one good reason, one not so much - drlowmu 21:14:38 06/25/12 (0)

RE: Huge Task - Neff 08:01:36 06/23/12 (0)

RE: one good reason, one not so much - ray_babasa@yahoo.com 05:49:57 06/23/12 (0)

I'm suprised to see that response from you - bwb 15:27:58 06/20/12 (1)

RE: more info - TubeBuilder 17:11:29 06/25/12 (0)

Follow Ups

RE: God is in the details! - grhughes 11:00:09 06/20/12 (2)

RE: God is in the details! - 6bq5 11:19:52 06/20/12 (1)

Thank you! Very interesting! nt - grhughes 07:34:24 06/21/12 (0)

RE: God is in the details!

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