[Heathkit] Sixer mods

[wolfbob]

Might consider a VFO see:
http://www.sparkfun.com/commerce/categories.php
and the FCC-1 and FCC-2

It will even readout the correct 6 meter freq..

Bob, WB6JPI

----- Original Message ----- 
From: "crawfish" <crawfish at surfmore.net>
To: "WB6BLV" <wb6blv at inreach.com>; 
<Heathkit at mailman.qth.net>
Sent: Saturday, January 20, 2007 11:34 PM
Subject: Re: [Heathkit] Sixer mods


> There was a company named Lawrence Electronics that 
> advertised such a kit
> back in the 1960's. Also, unrelated, the HW-29 used HC-6/U 
> crystals which
> were in the 25 mHz range to double to 6. Heathkit came out 
> with a kit to add
> a new oscillator/tripler so one could use the FT-243 
> crystals in the 8 mHz
> range, then triple them to 25. They put this out as a kit, 
> then incorporated
> the changes into the next Sixer design, named the HW-29A.
>                                            Joe W4AAB
> ----- Original Message -----
> From: "WB6BLV" <wb6blv at inreach.com>
> To: <Heathkit at mailman.qth.net>
> Sent: Saturday, January 20, 2007 9:24 PM
> Subject: [Heathkit] Sixer mods
>
>
>> For those not familiar with the Heath lunchboxes, there 
>> was a nifty mod
> out
>> by CQ which converted the receiver to a superhet with a 
>> super-regen
>> detector.  That greatly increased the sensitivity and 
>> narrowed the
> passband.
>> A single nuvistor was often used for the mod but in 
>> checking just now I
>> found at one circuit used a pair of 6CW4s as local osc 
>> and rf amp, with
> the
>> original circuitry doing the mixing and detecting.  I 
>> have a Twoer with
> this
>> mod and it is really quite amazing.  I do have a copy of 
>> the mod as done
> on
>> the Twoer a la CQ mag.
>>
>> 73
>>
>> John
>> WB6BLV at inreach.com
>>
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>
> _______________________________________________
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> ** For Assistance: dfischer at usol.com **
> $$ See the vintage area on the HCI web site - 
> http://www.w9wze.org $$
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