[TowerTalk] Rebuilding TH-7 Traps

[Tom Wagner]

The current price for traps from Hy-Gain is 
$27-$33.  At that price, I'll rebuild.  According
to Linda at Hy-Gain, the wire used is #10 
copper for the 15m traps and 102 mil aluminum
for the 10m traps.

Tom - N1MM
-----Original Message-----
From: Dale L. Martin <kg5u@hal-pc.org>
To: Tom Wagner <tomwagner@mindspring.com>
Date: Thursday, September 10, 1998 7:51 PM
Subject: Re: [TowerTalk] Rebuilding TH-7 Traps


>Tom,
>
>I'd bet the wire is not your normal copper wire...I recall some
>traps used to be made of some sort of nichrome to give added
>resistance and, consequently, more broadbandedness to the trap.
>
>I think traps are pretty cheap...my A3 traps are only about 15 or
>20 dollars each.  I'm sure Cushcraft still has TH7 traps.
>
>e-mail Cushcraft (Ray Lajoie, W1SIX, rayl@cushcraft.com) and ask
>for a price list for the TH7.  I'll bet you will find it's easier
>and, likely, cheaper to replace than to rebuild.
>
>73,
>dale, kg5u
>
>
>
>-----Original Message-----
>From: Tom Wagner <tomwagner@mindspring.com>
>To: towertalk@contesting.com <towertalk@contesting.com>
>Date: Thursday, September 10, 1998 16:21 PM
>Subject: [TowerTalk] Rebuilding TH-7 Traps
>
>
>>
>>I am rebuilding my TH-7 and wanted to replace the
>>rusting trap screws with SS versions.  Well that went
>>fine, until the trap wire (aluminum) broke, from what
>>I guess was "work hardening".
>>
>>So my question is:  "Has anyone rebuilt & rewired
>>TH-7 traps?"  My understanding is that some of
>>the traps use #10 copper wire and some use
>>102 mil aluminum (#10 copper is 101 mils).  Is it possible
>>to replace all the wire with Home Depot #10 copper?
>>Is there anything I'm missing here?
>>
>>Tom - N1MM
>>
>>
>>
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