[ARC5] "ARC-5" Receivers and "Q" multipliers

[Kenneth G. Gordon]

On 11 Aug 2015 at 23:25, Peter Eijlander (PA0PJE) wrote:

> I have made a simple Q multiplier in a WS19 with a subminiature 
> twin-triode 6021WA, which I got once from someone who worked in radar 
> maintenance. It laid unused for years 'till I found a simple circuit in 
> the Radio Communications Handbook of the RSGB. I swapped the B-set 
> tuning cap for a beautiful Bourns WW-pot from the same source. Works 
> very smooth, can be set very close to oscillation and enhances 
> selectivity much.
> 
> I made a scan of the page of the book. If you are interested I can send 
> the .pdf. I don't know how easy or difficult it is to get this 6021 
> miniature tube.

I would like to receive that PDF, please.

Submini tubes are very common over here. Ebay has them regularly. 

Thanks,

Ken W7EKB