RigDoctor wrote:They
have moved, the uk phone number is diverted to them, Paul and Steve
where good mates back in the day as they both worked together for the
BBC, They Veronica design was joint effort by both of them, Then they
split to make there own versions when paul had newer ideas to make it
better but steve didnt want to make any changed to the design, Steve
continued to build the old design right upto the day he died but paul
impoved it to where they are today. No one stole anything apart from
from spanish and greeks making rebuilds of the same schematic.
I'm afraid you've been misinformed: Paul
never worked for the BBC. He actually never had a real full-time job
at all. He was a DJ in clubs and pubs in Yorkshire. He never had any
electronic knowledge at all - anything he learned was entirely from
Stephen.
Back in the early 80s, Stephen came across the idea of
the "Kallitron" oscillator, originally designed for valves in the 1930s
by the Frenchman Cheirix. He redesigned it to work with transistors and
found that it was remarkably stable. In fact, in the days before
digitally tuned receivers, it was much more stable than the receivers of
the day, so was stable enough to put on the air without a PLL.
Stephen
ran "Veronica", a pirate station at weekends from the top of some of
the highest hills around Bradford. Because of the high sites, high
power and well-matched aerials, the pre-recorded programmes were heard
as far south as Leicester and as far north as Newcastle. Stephen knew
Paul - he lived in the same neighbourhood - and offered him a programme
on the station.
They
started selling rigs to other stations. Stephen would do the
electronic construction, Paul would drill out the boxes, and Paul would
make the deliveries and collect the money. This suited Stephen as he
wanted to try to keep his identity secret from the DTI.
It must be emphasised that all the actual electronics were done by Stephen (who had a formal electronic education).
In
the early 90s, they decided to start selling kits. They engaged a
company in Bradford to etch PCBs for them, and Stephen developed the
first PLL circuit, using 74LS TTL chips. They added more equipment to
their range, including a stereo coder, a limiter and some small PAs.
In
the late 90s, Paul became ever more interested in his DJ "career", and
his permanent late nights meant that he couldn't ever find the time to
do anything for "Veronica" Stephen suggested that if he wasn't going to
do any work, he shouldn't be paid - not an unrealistic demand - and
there was a massive argument that included Lisa (Paul's girlfriend) and
Christine (Stephen's girlfriend). It became very acrimonious, and ended
with the split - Stephen would become "Veronica Kits", then changed
that to "NRG Kits". Paul tried to sue for the use of the name! Stephen
said that "he's welcome to it" because the reputation had been
seriously damaged by then.
Paul set up another company in
competition with Stephen. He used the old designs (including the stereo
coder that couldn't decide left from right) and a PLL. He continued to
make the old 2N6084 PA that was horribly inefficient, but was the only
option in the mid- 80s when it was designed (by Stephen). Stephen moved
to using BLW60 transistors and FETs for big output stages. Paul
couldn't make anything bigger than 30 Watts.
Stephen and I
redesigned the PLL PRO into the PLL PRO III. The phase comparator was
the same (because it worked so well), but we added Out-Of-Lock
Power-down, a broadband amplifier system that gave well over 4 Watts of
very clean RF anywhere in the Band without any tuning, and a 74 HCT4059
to get rid of three of the divider ICs in the PLL circuit and allow the
use of BCD frequency selection. The carefully balanced Kallitron
oscillator was retained. The performance of the board was remarkable.
I
redesigned the stereo coder, so that it was possible to label the input
sockets "left" and "right" because it would always start up correctly
(unlike the old one that Paul continued to supply). I also added mono /
stereo switching and indication.
Paul lost a lot of business.
He couldn't compete with the 4 Watt version. "His" effort limped to 1
Watt and needed output stage tweaking to get there. Paul didn't have
OLPD, and needed a very well smoothed PSU to prevent hum.... It also
produced a lot of spurs.
Stephen's "NRG" design was modified for a
1 Watt and a 300 mW version (the little one was for the New Zealand
market where 300 mW can be used licence-free). I spent a lot of time
improving the highpass filter at the output of the oscillator (to
prevent any half-frequency getting into the output stages). It was
carefully designed with a Spectrum Analyser and a Network Analyser.
Paul never owned (or would ever have been capable of using) either of
those instruments. The performance of the NRG board was
better then than anything else
on the market - cleaner RF output, lower carrier noise, superb supply
ripple rejection and a genuine 4 Watts right across the band.
Stephen
expanded the range, with a stereo version of the limiter, a limiter /
coder combination board, various PAs (always supplied as ready-built
modules) and Link equipment.
In 2001, with great fanfare, Paul
released "his" "no-tune" 1 Watt board. He still used the three divider
ICs in the PLL, and had tried to "simplify" the oscillator. He didn't
understand the operation of the oscillator (and nor did his "engineer")
and managed to make it massively imbalanced, so that the board would
provide more output on half-frequency than where it was wanted! He had
made the output stages "no tune" by over-driving the final into
saturation so that it gave the same power out wherever the thing was
tuned to - unfortunately, most of the output energy was spurs and
harmonics. There was even huge amounts of in-band noise because of the
saturated final transistor. It was utterly incompetent.
Paul
paid a lot of money to advertise in the electronics comics, but Stephen
was selling about four times as much equipment. - even without
advertising - because of the excellent NRG reputation and highest
quality products. Paul tried to sue Stephen again (I was closely
involved with the case and provided expert testimony against Paul) and
again he lost - at huge expense.
Stephen
and I spent a lot of time designing new products. I gave him the PRO
IV stereo coder design, and we prototyped them and found the design to
be significantly better than anything else on the market. It used
oversampling for the audio for very low distortion and digital sinewave
synthesis for the pilot, so the phase accuracy of the multiplex
components is perfect.
Stephen
and I were designing the next generation of the exciter when he had a
first stroke. For the first time we were using an off-the-shelf PLL IC
(Stephen always wanted spares to be available anywhere in the world, so
resisted using dedicated ICs).
We went this way for three
reasons - the PLL ICs were getting really cheap and easily available,
the 74LSTTL ICs were getting scarce, and we could save a huge amount of
PCB space, making the PLL board much smaller. The transmitter strip
remained much the same, but the PLL circuit just became a narrow strip
along one side of the board (with a screen above and below the board to
keep the digits out of the audio and RF). We decided to have facility
on the PCB for either a fixed-frequency 8-pin PIC or a frequency-agile
18-pin PIC. The fixed-frequency version would be preferred for the RSL
market.
There
was also a 10 Watt version of the PLL board, and was entirely
"no-tune", using a pair of 2SC1971s for the output. There was also a 25
Watt board, but we decided that this probably wouldn't be economical. A
few prototypes were built.
Unfortunately, Stephen became more
ill, and Christine (and their other staff) kept the business running.
Stephen died, and NRG continued for a while. Christine then sold out
the parts inventory to Kanga Kits.
It must be remembered -
Paul had no electronic knowledge whatsoever,
and was just a lying fantasist. Please consider - I saw his (and
Lisa's) performances in court! He stole quite a lot of money from
Stephen over the years, and then tried to set up his own business and
sue NRG out of existence. He even tried to get Stephen's PCB
manufacturer to stop making boards for NRG! He is a thoroughly
disreputable and unpleasant character, and should be avoided at all
costs....