[TenTec] 1254 Q-Multiplier... Yes. Add a signal strenght metertooand replace those 1N4148s in the 2nd Mixer!

[ve1bn@ns.sympatico.ca]

Lew -

Tried to see your HBR site but the page was not found.  Any reason?  Site 
shanged?

73 - Don


----- Original Message ----- 
From: "Lew" <ljl160 at verizon.net>
To: <wb2vuf at qsl.net>; "Discussion of Ten-Tec Equipment" 
<tentec at contesting.com>
Sent: Wednesday, December 28, 2005 9:39 PM
Subject: Re: [TenTec] 1254 Q-Multiplier... Yes. Add a signal strenght 
metertooand replace those 1N4148s in the 2nd Mixer!


> Great q multiplier circuit on the HBR site.  In fact, the HBR site is
> absolutely facinating.  http://www.qsl.net/k5bcq/HBR/hbr.htm
>
> -------Original Message-------
>
> From: Bwana Bob
> Date: 12/28/05 20:01:35
> To: Discussion of Ten-Tec Equipment
> Cc: kg6tt at arrl.net
> Subject: Re: [TenTec] 1254 Q-Multiplier... Yes. Add a signal strenght
> metertoo and replace those 1N4148s in the 2nd Mixer!
>
> That's exactly what I was doing today: looking at the QF-1 schematic to
> see if it could be done with FET's. That Q-multiplier from the 1958
> Handbook sounds like the same one that I built from the 1964 Handbook. I
> don't have the schematic anymore, but I still have the parts in the junk
> box.  Anybody have a 1958 or 1964 Handbook?
>
>
>     73,
>
>     Bob WB2VUF
>
> Ralph Matheny wrote:
>
>> There is a one-transistor Q mult circuit back in the 1958!!!!! ARRL
>> handbook I think.  I'm not sure how well it worked, and as I remember
>> it was intended to be a "notch" but wold also make a peak one way or
>> another.  A drawing of the ole Heath QF-1 should give a good idea of
>> a tube-type circuit, which could be "transposed" to a FET with ease.
>> If nobody has a a QF-1 book, I have a unit and could perhaps make a
>> sketch of the circuit from it.
>>
>> I agree---the little Rx works dern good.
>>
>>
>> Ralph Matheny
>> K8RYU
>> 207 Gibbons Place
>> Marietta Ohio  45750
>>
>>
>>
>>
>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec at contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>