[Boatanchors] Cheap & Easy Selectivity

[AI2Q]

Sounds like what a Q-multiplier box does.

Vy 73, AI2Q, Alex
Member: ARRL, FOC, RSGB, QRP-L, Antique Wireless Association, Wide Area 
Amateur Radio Network
http://home.roadrunner.com/~alexmm


----- Original Message ----- 
From: "rbethman" <rbethman at comcast.net>
To: "Boatanchors" <boatanchors at mailman.qth.net>
Sent: Thursday, August 20, 2009 2:19 PM
Subject: Re: [Boatanchors] Cheap & Easy Selectivity


> The 1948 ARRL handbook hits it in Chap 5,  High Frequency Receivers,
> Improving Receiver Selectivity, IF Amplifiers, then under a minor
> heading:  Regeneraton.  pp115-116.
>
> This is essentially ADDING Regen to a Superhet.
>
> Bob - N0DGN
>
> Ian Wilson wrote:
>> >From p36 of the 1936 Radio Handbook (several versions of this receiver).
>>
>> By the Seventh Edition, all the HF receivers are superhets; no more
>> Gainers or Super-Gainers.
>>
>> 73, ian K3IMW
>>
>
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