While serving in the RAF in 1957 I was posted to Christmas Island for
the British nuclear tests in the Pacific.
During that time I was also stationed for a short while at the Transit
Aircraft Flight at Hickam AFB at Hawaii. While there I bought a
transistor radio kit (made in Japan) at the air base PX, which I
assembled when I got back to Christmas Island.
With this I was able to pick up MF stations from Hawaii (KHOH & KHON as
I recall) and occasionally other MF stations such as Australia when
conditions were good
The kit used two transistors an RF amp and a detector . The detector
stage was also an audio amplifier using a reflex circuit which made the
most out of these expensive active devices. I understand reflex circuits
were used in the early days of valves (tubes).
Regards
Peter, G3LDO
On 16/02/2011 04:03, Steve Dove wrote:
My first uA709 (first real commercial op-amp, circa 1968) cost me five
quid. Which was a LOT of newspapers.
Unstable, noisy. And, with its unprotected output stage didn't last
very long . . .
73 Steve
On 2/15/2011 7:19 PM, Andy Talbot wrote:
40 Years ago today decimal money was introduced to the UK It was half
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