This all just doesn't sound right. Did this receiver EVER work? If
it did its not miswired. If it didn't how did it get through factory
alignment and QC? How did it get sold in the first place? If I
understand the complaint correctly half the broadcast band does not
work. That is a very big failure. This was a medium low priced receiver,
on the order of $90 when new. Not a cheap set and not a toy. In general
Hallicrafters did not make junk (with some exceptions) and usually
offered good value if not world class performance.
The comments about recieivers with antanna trimmers is just not
correct. Generally the trimmer or compensator is there to allow the use
of a variety of antennas while the lack of a trimmer means the input
wants something close to the impedance presented by the dummy antenna
prescribed. Generally, these receivers were meant to work from poor
antennas especiallay at the MF broadcast band, a couple of feet of wire
should be enough for local stations. It is certainly not going to be so
critical that the set won't work over half the band.
We are being led to believe that Hallicrafters design engineers
didn't know what they were doing and that their production engineers
didn't either. That no one on the line ever came to their supervisor
saying the set would not work over part of its range.
It IS possible for the schematic to be wrong. This is not what the
sets were build from, but what is in the set should work.
What is going on here?
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On 2/9/2025 9:55 AM, Emanuele Girlando via groups.io wrote:
Guys,
one of the reasons I wants to give up with this one is the poor design
in the ANT RF circuitry.
--
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998
