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G8MNY  > TECH     27.12.25 19:08l 49 Lines 1688 Bytes #9 (0) @ WW
BID : 48126_GB7CIP
Subj: 1:6 HF Balun (300,450,600�)
Path: JH4XSY<JE7YGF<LU4ECL<VK2RZ<GB7CIP
Sent: 251227/0957Z @:GB7CIP.#32.GBR.EURO #:48126 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To  : TECH@WW

From PD2HFE                                    (Updated Mar 05)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
hello to all ham folk`s
for those who want to build an 1:6 balun for hf freq`s
here i have an schematic diagram.......................:

(redrawn & turns ratio recalculated by G8MNY)
9 turns = 50ohm, 22 turns = 300ohm (298ohm) Balanced

     ﾜﾛﾛ    ﾜﾛﾛﾛﾛﾛﾜ    ﾛﾛﾛﾛﾛﾛﾛ     ﾛﾛﾛﾛﾛﾛﾜ ﾜﾛﾛﾛﾛﾛﾜ ﾛﾛ      ﾛﾛ   ﾛﾛ ﾜﾛﾛﾛﾛﾛﾜ
     ﾟﾛﾛ ﾛﾛ ﾛﾛﾜﾜﾜﾜ        ﾜﾛﾟ      ﾛﾛﾜﾜﾜﾛﾟ ﾛﾛﾜﾜﾜﾛﾛ ﾛﾛ      ﾛﾛ   ﾛﾛ ﾛﾛ   ﾛﾛ
      ﾛﾛ ﾜﾜ ﾛﾛﾟﾟﾟﾛﾛ     ﾜﾛﾟ        ﾛﾛﾟﾟﾟﾛﾛ ﾛﾛﾟﾟﾟﾛﾛ ﾛﾛ      ﾛﾛ   ﾛﾛ ﾛﾛ   ﾛﾛ
      ﾛﾛ ﾟﾟ ﾟﾛﾛﾛﾛﾛﾟ    ﾛﾛﾛﾛﾛﾛﾛ     ﾛﾛﾛﾛﾛﾛﾟ ﾛﾛ   ﾛﾛ ﾛﾛﾛﾛﾛﾛﾛ ﾟﾛﾛﾛﾛﾛﾟ ﾛﾛ   ﾛﾛ

             ﾚﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄｿ
             ｳ       ﾚﾄﾄﾄﾄﾄﾄﾄ)ﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄo
             ｳ       ｳ11     ｳ9           0
             ｳ       ｳﾚｿﾚｿﾚｿﾚｴﾚｿﾚｿﾚｿﾚｿﾚｿﾚｿﾚﾄﾄﾄｿ
             ｳ       ﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙ   ｳ       300�
  50� Txr  ｳ ﾟ ｳ     ｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱ   ｳ        OUT
Unbalanced ﾀﾄﾂﾄﾙ     ｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱｱ   ｳ      Balanced
             ｳ       ﾚｿﾚｿﾚｿﾚｿﾚｿﾚｿﾚｿﾚｿﾚｿﾚｿﾚｿ   ｳ
             ｳ       ｳﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾙﾀﾄﾄﾄ)ﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄo
             ｳ       ｳ11                  0   ｳ
             ﾀﾄﾄﾄﾄﾄﾄﾄﾁﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾄﾙ

          11 wdg bifilair on Amidon T 200-2 TOROID CORE

best 73`s from harald From: PD2HFE@PI8HGL.#ZH1.NLD.EU


For 450ohm (9:1 Z) use 8 turns tap for 50ohm Tx, & 24 turns for the balanced
feed.

For 600ohm (12:1 Z) use 8 turns tap for 50ohm Tx, & 28 turns for the balanced
feed.


Make sure the windings are phase & connected correctly.


Why Don't U send an interesting bul?

73 De John, G8MNY @ GB7CIP



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