[Heathkit] Sixer mod - whar is it?

Robert & Linda McGraw (K4TAX) RMcGraw at Blomand.Net
Sat Jan 20 22:13:56 EST 2007


Sixers, being super regen receivers, needed some help.  The two nuvistors, 
most likely 6CW4's, are probably in a grounded grid, cathode input and then 
cathode follower circuit.  Not rocket science, but a knock off from the RCA 
TV tuner front end era CTC10 chassis.  Check the SAMS Photofact for the 
tuner section of the 1960 vintage products.

73
Bob, K4TAX


----- Original Message ----- 
From: "Peter Markavage" <manualman at juno.com>
To: <Heathkit at mailman.qth.net>
Sent: Saturday, January 20, 2007 8:22 PM
Subject: Re: [Heathkit] Sixer mod - whar is it?


> Maybe it's nothing more than 6 meter preamp. "Follow the wires!" Lots of
> circuits were floating around in the 60's. It probably was not
> specifically designed for the Sixer. Of course, why you would want to put
> a preamp on a regen receiver is somewhat curious.
>
> Pete, wa2cwa
>
> On Sat, 20 Jan 2007 19:55:49 -0600 "Tom Laird" <w9qi at arrl.net> writes:
>> I have a Sixer I picked up and it fairly clean. Opened it up and it
>> has a
>> board mounted above the chassis  with two Nuvistors on it with
>> associated
>> circuitry. I assume it'd a nuvistor front end. Anyone know of the
>> mod?
>>
>> Tnx,
>>
>> Tom Laird W9QI
>> Moline, IL.
>
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