[R-390] 6DC6 Replacement

[Bryce Ringwood]

Hi

(Warning ! - Sand and deceased gramniverous quadrupeds mentioned)

A few observations:

1. The problem I generally have with sand is interference from nearby (
or sometimes quite far removed ) strong stations causing intermodulation
effects. Both my homebrew and a well known commercial sand receiver
suffer badly.  Thus far, I haven't had any problem with tubes. Even the
much maligned (in the '70s) EF183 gave me great performance.

2.  I don't understand the concept behind 'intercept points' and their
measurement very well. Perhaps one of you could explain in terms a non
electrical engineer can understand ? Hope this doesn't become another
6082 saga.

3. If it doesn't glow it doesn't go. The orange LED should be
supplemented with a white LED in series with a capacitor to give that
lovely white glow when you first switch on. White LEDs cost a bit more,
but its worth it.

4. Some tubes are supplied with plastic pin straighteners - these just
need the right diameter wire poked through the holes and glued to make a
header on which a small PCB can be mounted.

6. Many tubes will outlast their owners. This is just an FLP ("Fun
Little Project"). Making an tube radio solid-state makes no sense other
than doing it for its own sake. People who take their fun seriously will
buy a solid state radio.

7. What was 5?

Enjoy your day - Bryce