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G8MNY  > TECH     05.12.18 11:00l 46 Lines 1673 Bytes #3 (0) @ WW
BID : 47960_GB7CIP
Read: GUEST
Subj: 1:6 HF Balun (300,450,600)
Path: ED1ZAC<ED1ZAC<GB7CIP
Sent: 181205/0953Z @:GB7CIP.#32.GBR.EURO #:47960 [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 = 50, 22 turns = 300 (298) Balanced

                              
                                    
                                    
                           

             Ŀ
                    )o
                    11     9           0
                    ڿڿڿڴڿڿڿڿڿڿĿ
                              300
  50 Txr                    OUT
Unbalanced               Balanced
                    ڿڿڿڿڿڿڿڿڿڿڿ   
                    )o
                    11                  0   
             

          11 wdg bifilair on Amidon T 200-2 TOROID CORE

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


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

For 600 (12:1 Z) use 8 turns tap for 50 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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