[Boatanchors] [Glowbugs] re "Novice Pair" receiver

[Howard Weinstein]

Concerning the book -

Building your amateur radio novice station by Howard Pyle W7OE

Are the construction projects, technical information, and schematics
published in this volume generally accurate or erroneous?

Howard  Pyle W7OE was highly regarded in his time. I would think there
would have been accurate proofreading and circuit verification before
publication.

I'm looking for my copy. I want to build a companion receiver for my Ameco
AC-1.

Tnx es 73 de Howie WA3MCK

On Mon, Apr 18, 2016 at 7:15 AM, N2EY via Glowbugs <tetrode at googlegroups.com
> wrote:

>
>
> In a message dated 4/17/2016 5:21:37 P.M. Eastern Daylight Time,
> kargo_cult at msn.com writes:
>
> Now re the ARRL’s ‘Novice pair receiver’ in the late 1950s ARRL booklet
> “How To Become a Radio Amateur”,
>
> i note:
>
> The tube choice, 2x 6AQ5, seems kind of odd to me. I’d think the detector
> would more likely be a 6AU6 or 6BA6,
>
> rather than a power tube. And the output tube wouldn’t really need to be
> that large either, something like a
>
> 6AK6 would be fine.
>
>
> You need to read the original QST article. W1TS used the 6AQ5s because
> they worked best.
>
> The article is in QST for June, 1956. "The Novice Special". Read the whole
> thing and you'll see there's a reason for everything in the receiver.
>
>
> There is NO volume or gain control, only regen control. Not so good.
>
>
> Not needed. For CW signals, volume is reduced by increasing regeneration
> way beyond the critical point. For AM, by reducing regeneration way below
> the critical point.
>
> The one thing the receiver lacks that should be added is a variable cap of
> about 50 uuF in series with the antenna lead.
>
> The coils are low-inductance for the bands chosen – that is, the tuned
> circuit, for stability, is intended to be high-C.
>
> Even so, the text says the receiver will probably not be useful above 40
> meters ( 7 MHz ) band.  ( They mean not
>
> useful, for CW reception, because of stability, on the upper Novice band
> of 21 MHz. ) The top coil tho, does tune up
>
> to something like 30 MHz.
>
> -Hue Miller
>
> --
>
>
> That's because there's no RF stage.....and because that's the nature of
> simple regens.
>
> There was a followup article (October 1956) in which a one-tube converter
> was used for the higher bands.
>
> The Ancient Ones often had very good reasons for doing what seems to be
> odd things today.
>
> 73 de Jim, N2EY
>
> --
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