- After my first supertech SR-16 HN which I bought and which didn't work - I did look for solutions in this group - I ventured to buy another one. I paid E 17.50 for it, and yes, I was told, this ons was in good working order. Of course it wasn't! I wasn't able to repair de first radio, but this new one had a defect in a different section, a part which worked fine in the first one.
Second radio is now repaired and works perfectly. Transistor Q307 was blown into oblivion, replaced by BC640, at a cost of 19 cents!
Diagnosis: Reception o.k.; no sound; Power light ON, even when off. Transistor literally blown to pieces!
- Since this is a Sangean list I'll ask the village elders here. Does
anyone own one of the new '909X receivers? I am curious about the DSP
circuitry that Sangean has designed in the new receiver. Does anyone
know if this is a DSP IF with DSP filtering or if it is used as audio
Silicon Labs makes a superb set of DSP radio chips, the Si4734 which is
used in many Ultralight AM/FM/SW/LW radios and the '4735 which adds RBDS
decoding to the '4734 performance. I doubt Sangean is using an Si chip
but it may be possible. Sangean has favored a 450kHz IF in past
receivers and the DSP IF of the Si chips is in the 45kHz range.
The new '909X looks like a very interesting radio. I've owned a DX-398,
and an ATS-909 in addition to my ATS-803, HDT-1, PR-D5, and a little
SR-25. I've been a Sangean owner for years and found all their products
to be very good. The PR-D5 is a very good MW receiver in addition to
having excellent RDS decoding on FM. I hope the '909X is as good as the
PR-D5 in both areas.