Home |
Search |
Today's Posts |
#12
|
|||
|
|||
Variable selectivity?
On Sun, 13 Oct 2013, gareth wrote:
Further information most welcome, thank-you In the 1948 Radio handbook which I mentioned previously, there are adverts from a company by the name of Millen, and I assumed it was the same guy after he had left National. Your comment about a phenolic intersperser is no doubt some means of isolating an earthy contact? It would be interesting to know from the Lamb patent whether he proposed therein the technique of Single Signal Reception by the use of the phasing control to null out the audio image, or whether this was something that came about through experience? ONce again, "single signal selectivity" is credited to the Lamb filter, everyone referencs that famous QST article of his. You don't need the phasing control to get the single signal selectivity. Micahel VE2BVW |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
F.A Selectivity switch for AR.88.CR.88.SC.88 Receivers | Boatanchors | |||
Increase selectivity by a Q multiplier | Digital | |||
Increase selectivity by a Q multiplier | Dx | |||
Increase selectivity by a Q multiplier | Antenna | |||
Tecsun PL-550 selectivity | Shortwave |