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 les Wallen Modulator stainless steel whip length

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morris
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morris


Call Sign : 26-CT-11111
Posts : 138
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Join date : 2019-07-26
QTH or Location : Kent

les Wallen Modulator stainless steel whip length Empty
PostSubject: les Wallen Modulator stainless steel whip length   les Wallen Modulator stainless steel whip length Icon_minitimeTue Mar 09, 2021 3:21 pm

Hello all, a little help needed please, are there any owners of a original Wallen modulator who could measure the length of the stainless steel whip? this would require removing it from the coil base.

Many thanks

John  cheers
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Victor
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PostSubject: Re: les Wallen Modulator stainless steel whip length   les Wallen Modulator stainless steel whip length Icon_minitimeTue Mar 09, 2021 3:55 pm

Cor, the old Modulator! As ubiquitous as the old DV27 and K40 Smile

Forgive me John, having a reminiscing moment....


Haven't got one anymore but from what I can find out the antenna's overall length was 1.65 metres, (whatever that means not being in farthings & inches!)

You could always cut a whip a bit longer than that and cut/grind it down until the SWR/antenna analyser shows it to be at resonant length. That might be better as the original was copied so many times with different lengths of coil that you'll never find the correct length otherwise.

Little tip - Use either cheap copper rod or brazing rods, (even copper wire will do the job), to find out the resonant length and then when you're sure cut down your stainless rod to matching length. Much cheaper wasting copper than stainless whips. Smile


Let us know how you get on mate. 👍

All the best,
Victor
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morris
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morris


Call Sign : 26-CT-11111
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Join date : 2019-07-26
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les Wallen Modulator stainless steel whip length Empty
PostSubject: Re: les Wallen Modulator stainless steel whip length   les Wallen Modulator stainless steel whip length Icon_minitimeTue Mar 09, 2021 5:06 pm

Thanks for your reply Victor, i should have stated i am not attempting construction of a new whip but i  have several unidentified steel whips which i am trying to match to the wallen loading coil  Smile, you are of course quite correct, they are an iconic antenna up there with the  k40 and dv 27 alike, the latter i believe is no longer made?


Cheers  cheers

John
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Victor
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les Wallen Modulator stainless steel whip length Empty
PostSubject: Re: les Wallen Modulator stainless steel whip length   les Wallen Modulator stainless steel whip length Icon_minitimeTue Mar 09, 2021 6:04 pm

Ah, no worries mate. 

Maybe the 1.65 metre length helps? Or plug in each one in until it's resonant?

Best of luck. 👍

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The author of this message was banned from the forum - See the message
morris
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morris


Call Sign : 26-CT-11111
Posts : 138
Times Thanked : 5
Join date : 2019-07-26
QTH or Location : Kent

les Wallen Modulator stainless steel whip length Empty
PostSubject: Re: les Wallen Modulator stainless steel whip length   les Wallen Modulator stainless steel whip length Icon_minitimeTue Mar 09, 2021 6:39 pm

NUBSTER wrote:
https://www.ebay.co.uk/itm/THE-MODULATOR-ORIGINAL-CB-ANTENNA-FROM-WALLEN-ANTENNAE-/164272598375?_trksid=p2349624.m46890.l49292
Les is still making them


Seen those also on ebay Martin, but i can`t remember the last time i saw a dv27 either new or old for sale?
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morris
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morris


Call Sign : 26-CT-11111
Posts : 138
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Join date : 2019-07-26
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les Wallen Modulator stainless steel whip length Empty
PostSubject: Re: les Wallen Modulator stainless steel whip length   les Wallen Modulator stainless steel whip length Icon_minitimeWed Mar 10, 2021 6:45 am

NUBSTER wrote:
https://www.thunderpole.co.uk/medium-cb-antennas/sirtel-wrm-dv27-whip.html
I found some Morris
TBH to me it look like what I remember what we use to called a DX27 which was better than the DV because of the helical wound bottom half of the antenna, but they call it a DV 27 so there still about LOL

Wow i thought they gone the way of the Dodo  Very Happy
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les Wallen Modulator stainless steel whip length Empty
PostSubject: Re: les Wallen Modulator stainless steel whip length   les Wallen Modulator stainless steel whip length Icon_minitime

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