[Boatanchors] Question on Regen operation

[Al Klase]

Hello Keith,

While I don't have first-hand knowledge of the GR-81, you description of 
performance sounds reasonable. This is a really simple receiver, and 
they are asking it to work across a considerable frequency range.

(If you're reading along, see: 
http://www.qsl.net/wy3a/Heath_GR-81_Schematic.htm)

There are receivers that use pentodes and have tuned RF stages that work 
a whole lot better, even rivaling simple superhets. Take a listen to a 
National SW-3 or Navy RAL if you ever have the chance.

You may want to check my article "The Age of the Autodyne" QST, January 
2002, P43.

I've lost control of the copyright to this, but if you can't dig it out 
of the ARRL, there is still a rough copy here:
http://awasa.org.za/Newsletters/2010/51Mar2010.pdf scroll down to page 4.

Al


Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

On 3/26/2015 6:36 PM, Keith Densmore wrote:
> Greetings All,
> I have been playing with a regen receiver(Heath GR81). Being my first 
> regen I wonder if the following actions are normal or if I should 
> investigate further.
> Receiver is much more sensitive on the higher end of each band. Adding 
> tuning capacitance means more regen needed.
> The set overall is very senitive on the highest 5-18 megs band, and 
> quite a bit less sensitive on the BCB and VLF. It will go into 
> regeneration across the whole spectrum, just less sensitivity 
> generally as you go lower.
> Thanks for any advice.
>
> Keith ve3ts
>
>
> ---
>