Inexpensive SWL recievers

[Bill Coleman AA4LR]

On 11/10/98 4:49 PM, Chris Trask at ctrask at primenet.com wrote:

>On Tue, 10 Nov 1998, Bill Coleman AA4LR wrote:
>
>> On 11/10/98 12:40 PM, Gary L. Sanders at gsanders at RICOCHET.NET wrote:
>>
>> >I had both the GR-64 and GR-54 when I was a teenager. The GR-64 is a
>> >simple regenerative receiver, but with a nice look.
>>
>> The GR-64 is a four-tube superheterodyne receiver. Not a regenerative
>> receiver. Has a big slide-rule type dial.
>>
>> The GR-81 is a three-tube regenerative receiver. Has a circular pointer
>> dial covering about 300-330 degrees.
>>
>> If anyone has one, I'm looking for GR-81 parts to finish a restoration.
>>
>
>       Uhhh...  The GR-54 was the four-tube superhet.  It was an
>all-american 5 with a pair of diodes for the rectifier rather than the
>usual tube.
>
>       The GR-64 was a much nicer receiver, with an RF stage thrown in.

The GR-64 has NO RF stage. Antenna input when right from the input coil
to the pentagrid converter (a combined oscillator/mixer).

I believe someone else mentioned that the GR-54 had an RF stage. I also
had the impression (and could be wrong) that the GR-54 may have also had
a longwave band (ie 150-500 kHz).



Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at radio.org
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901

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