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Re: LF: RE: Droitwich again

To: <[email protected]>
Subject: Re: LF: RE: Droitwich again
From: "Graham" <[email protected]>
Date: Wed, 9 Nov 2011 14:28:43 -0000
Importance: Normal
In-reply-to: <BF4A524700075746A6467658DFC7102CB0B489A4C2@ICTS-S-EXC2-CA.luna.kuleuven.be>
References: <4B0BDF5A74714898AE9EFE1A21CCEF1E@standard9dmup1>,<BF4A524700075746A6467658DFC7102CB0B489A4C1@ICTS-S-EXC2-CA.luna.kuleuven.be> <BF4A524700075746A6467658DFC7102CB0B489A4C2@ICTS-S-EXC2-CA.luna.kuleuven.be>
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I still  have  my  edge  triggered   100Kz  > 10 Kz   frequency   standard  as required  by  my  licence  of  1972 .. some times it  was  9Kz  some time  11Khz just  had to  count  very  slowly  in-between  the bigger  100k blips  , once it  had  been  zero  beat  against  200k..
 
G.

Sent: Wednesday, November 09, 2011 11:17 AM
Subject: LF: RE: Droitwich again

 
73, Rik  ON7YD - OR7T
 

Van: [email protected] [[email protected]] namens Rik Strobbe [[email protected]]
Verzonden: woensdag 9 november 2011 12:13
Aan: [email protected]
Onderwerp: LF: RE: Droitwich again

 
73, Rik  ON7YD - OR7T
 

Van: [email protected] [[email protected]] namens Walter Staubach [[email protected]]
Verzonden: woensdag 9 november 2011 12:07
Aan: [email protected]
Onderwerp: LF: Droitwich again

Dr All,
    pse excuse that yesterday evening I sent a mail without signature. It was not yet ready but suddenly off and sent. Computers sometimes seem to have their own meaning.
Droitwich 200kHz was used by many hams as a frequency standard at that times. In DL-QTC 11/1954 page 474 one can find the "DARC-Standard-Gerät Nr.2" named "Frequenz-Eichpunkt-Geber."
    Two tubes 6K7 (VT86) and 6SN7, 100kHz multivibrator, wire antenna was necessary.
And it was built into an aluminum bread box with power supply.
A small part of the Droitwich history.
73   Walter    DJ2LF / DI2AG
 
 
 
 


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