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LF: Big PA

To: "RSGB LF Group" <[email protected]>, [email protected]
Subject: LF: Big PA
From: "Tom Boucher" <[email protected]>
Date: Wed, 23 May 2001 13:08:22 +0100
Reply-to: [email protected]
Sender: <[email protected]>
Andy 'JNT

Could you give me info on the little pot-core you use for your driver
transformer in your PA? Material, turns?
I used a Farnell 559-570 ferrite sleeve, intended for EMC suppression,
no info on material, 16 turns on primary (1.1 mH) and 29 turns
quadrifilar on the secondary. The TC-4426 driving it got rather hot so I
ac coupled it with a 0.33 mFd which seemed to improve things a little.

Thanks, Tom G3OLB

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