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Old March 3rd 06, 07:29 AM posted to rec.radio.amateur.homebrew
Paul Keinanen
 
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Default mixer: DBM or dual gate mosfet?

On Thu, 2 Mar 2006 21:11:16 -0500, "xpyttl"
wrote:

"Paul Keinanen" wrote in message
.. .

In Europe, there are several high power broadcasters starting at 7100
kHz, which would easily overload the 40 m receiver. Assuming loaded Q


OH2BT's comments about how much better things have gotten in Europe really
made me say hmmmm.... I only recently heard actual measurements, rather
than whining, and things are pretty horrible today - they must have been
intolerable decades ago.


We had problems keeping Radio Moscow out of _audio_ equipment :-).

Guitar amplifiers were quite problematic with long cables and a top
capacitance (the guitar and the player) at the end, bringing quite
large RF voltages into the audio stages, causing rectification in
unfiltered input stages.

Paul OH3LWR

 
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