[Heathkit] Sixer mods

[crawfish]

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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