Wanted - Codar AT5 or similar
Mike Gathergood
160m AM tx for sale? Details and (sensible) price please by email or
tel/fax Slough (01753) 582085.
Thread hijackers welcome, but could I suggest we start with something
vaguely topical like 'a real radio ham would build one'?
73
Mike The CQ Centre BBS, 01753 595468, 300-28800 bps, 8N1, ANSI-BBS
G4KFK Tel/Fax Slough (01753) 582085
Richard Herring
: Does anybody have a Codar AT5, Tiger Tiglett, PW Wyvern, or similar
: 160m AM tx for sale? Details and (sensible) price please by email or
: tel/fax Slough (01753) 582085.
: Thread hijackers welcome, but could I suggest we start with something
: vaguely topical like 'a real radio ham would build one'?
Didn't G2BCX earn a living publishing variations on the Codar
AT5 in PW, in what seemed like every month's edition throughout
the 1970s ? I could (almost) do it from memory - EF91 VFO, another
EF91 buffer/doubler (for 80), 5763 (or 6??7) PA, and, if you wanted AM,
an ECL86 preamp and choke modulator. I still have one somewhere,
(sorry, not for sale!) built in an old shortbread tin - no solder
tags required, just solder straight to the tinplate.
--
Richard Herring | richard...@gecm.com | Speaking for myself
GEC-Marconi Research Centre | Not the one on TV.
Mike Gathergood
richard...@gecm.com "Richard Herring" writes:
> Didn't G2BCX earn a living publishing variations on the Codar
> AT5 in PW, in what seemed like every month's edition throughout
> the 1970s ? I could (almost) do it from memory - EF91 VFO, another
Ermm... wasn't that G3OGR? G2BCX earned a living publishing VHF/UHF
antenna designs.
73
Mike * QRV around 0800 and 1800 most weekdays on GB3HL *
G4KFK * (Hillingdon 433.075/434.675) and also 51.83 MHz *
Richard Herring
: In article <4fpu0s$7...@miranda.gmrc.gecm.com>
: richard...@gecm.com "Richard Herring" writes:
: > Didn't G2BCX earn a living publishing variations on the Codar
: > AT5 in PW, in what seemed like every month's edition throughout
: > the 1970s ? I could (almost) do it from memory - EF91 VFO, another
: Ermm... wasn't that G3OGR? G2BCX earned a living publishing VHF/UHF
: antenna designs.
Indeed you are right. I had the wrong Fred in mind. F.G. Rayer, not
Fred Judd. Does anyone remember any other serial republishers? There
was the baronet with the reflex receivers in Radio Constructor, for one.
David Stockton
: Indeed you are right. I had the wrong Fred in mind. F.G. Rayer, not
: Fred Judd. Does anyone remember any other serial republishers? There
: was the baronet with the reflex receivers in Radio Constructor, for one.
Sir Douglas Hall, KMG or something like that?
I subscribed to Mr Forsyth's fine periodical in the 1960's and
never had any interest in "Radio Constructor" though someone gave our
club a stack of old ones several years ago (he was into TV-fixing).
Some familiar (and prolific) names from memory:
F G Rayer G3OGR
Gordon King
R A Penfold
John Linsley-Hood
I looked at a recent Wireless World (Now with its name disguised) and
found that Linsley-Hood is still turning out audio amplifier designs, if
the kit adverts are anything to go by. Things seem to be quiet on the
relativity front, though - I last read a WW a couple of years ago, so I
might just have sampled a quiet interlude.
Let's not knock these people, even those who were a bit, well, er,
repetitive. They did serve to get a lot of new people interested. Let's
draw a veil over one magazine's electronic eggtimer decade (or two) and
pretend it never happened.
There were some great things in the past, well worth celebrating:
G2DAF's RX, TX, PA (How about a biographical article in
Radcom?)
G3PDM's amazing receiver (so far ahead of its time it got
overlooked)
Ulrich Rohde's 1970s articles about high dynamic range technology
Cheers
David GM4ZNX
David Hough
r...@gmrc.gecm.com (Richard Herring) writes:
>
> Indeed you are right. I had the wrong Fred in mind. F.G. Rayer, not
> Fred Judd. Does anyone remember any other serial republishers? There
> was the baronet with the reflex receivers in Radio Constructor, for one.
Wasn't that Sir Douglas Hall?
Dave
--
da...@llondel.demon.co.uk
Any advice above is worth what I paid for it.
Ian White, G3SEK
>
> Some familiar (and prolific) names from memory:
>
> F G Rayer G3OGR
> Gordon King
> R A Penfold
> John Linsley-Hood
It was always a pleasure to read one of F G Rayer's articles, because
you could greet items from his junk-box like old friends!
Dunno about Gordon King, but R A Penfold is still proliffing very
successfully throughout the books section of Maplin catalogue. That
bloke is into everything even vaguely electronic.
> I looked at a recent Wireless World (Now with its name disguised) and
>found that Linsley-Hood is still turning out audio amplifier designs, if
>the kit adverts are anything to go by. Things seem to be quiet on the
>relativity front, though - I last read a WW a couple of years ago, so I
>might just have sampled a quiet interlude.
John Linsely-Hood is alive and well, and still writing for
demon.ip.support.turnpike and other well-known hi-fi journals.
The previous editor of EW+WW regrettably knocked the long-running
relativity debates on the head - said they didn't fit in with the style
of the magazine (oops, sorry, journal) any more.
>
> There were some great things in the past, well worth celebrating:
>
> G2DAF's RX, TX, PA (How about a biographical article in
> Radcom?)
>
Why wait for RadCom?
Dick Thornley lived in Preston and used to come and talk at the
Blackpool club, back when I was a teenager and SSB was a new and
specialized mode - so special that he wrote a monthly column about it
in the RSGB Bulletin.
He was years ahead of his time in thinking about ultra-clean
transmitters and high dynamic range receivers, and was an ace contructor
and experimenter of the old "build 'em big" school. Remember, this was
all done with valves, lots of them.
Contrary to more recent rumours, G2DAF was not the kind of amateur who
would spend a year building some marvellous piece of gear, have one QSO
on it, and then disappear for another whole year. Quite the opposite:
throughout the mid-sixties he was on the 80mm SSB net every night
dispensing his wisdom. By "SSB net" I mean that SSB was the mode and SSB
was usually the sole subject of discussion. Those people really didn't
suffer fools gladly, but I and many other timid souls learned a lot from
just listening.
(BTW one of the regulars was a bright young kid called G3PLX who had
built himself a Third Method SSB exciter completely from scratch -
using valves. If the callsign seems familiar, think AMTOR.)
G2DAF was a bit forbidding to get to know, but actually very willing to
help anyone who was really committed to Getting It Right. He took a non-
working G2DAF receiver from one of our club members who had been
struggling with it for months, and delivered it back fully working and
almost completely rebuilt - all on the understanding that he could write
an article about the mistakes he'd found.
He died about 20 years ago, not long after retiring from Belling-Lee at
Liverpool.
> G3PDM's amazing receiver (so far ahead of its time it got
> overlooked)
...until someone resurrected some of the the best bits for the ARRL
Handbook :-)
Also Yaesu didn't overlook G3PDM's phase detector and unijunction VCO
sweep - they nicked it for the FT-221.
>
73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
'In Practice' columnist for RadCom (RSGB)
Professionally:
IFW Technical Services Clear technical English - anywhere.
James Dunnett
> It was always a pleasure to read one of F G Rayer's articles, because
> you could greet items from his junk-box like old friends!
>
> Dunno about Gordon King, but R A Penfold is still proliffing very
> successfully throughout the books section of Maplin catalogue. That
> bloke is into everything even vaguely electronic.
>
> Why wait for RadCom?
(And so on....)
You have the basis of an article in that posting Ian.
Why not write one ?
-Jim, g4rga
jay...@cix.compulink.co.uk
jim...@rmplc.co.uk
Garry
G3...@ifwtech.demon.co.uk ("Ian White, G3SEK") wrote:
[Mostly snipped]
> Dick Thornley lived in Preston and used to come and talk at the
> Blackpool club, back when I was a teenager and SSB was a new and
> specialized mode - so special that he wrote a monthly column about it
> in the RSGB Bulletin.
>
> He was years ahead of his time in thinking about ultra-clean
> transmitters and high dynamic range receivers, and was an ace contructor
> and experimenter of the old "build 'em big" school. Remember, this was
> all done with valves, lots of them.
>
> G2DAF was a bit forbidding to get to know, but actually very willing to
> help anyone who was really committed to Getting It Right. He took a non-
> working G2DAF receiver from one of our club members who had been
> struggling with it for months, and delivered it back fully working and
> almost completely rebuilt - all on the understanding that he could write
> an article about the mistakes he'd found.
>
> He died about 20 years ago, not long after retiring from Belling-Lee at
> Liverpool.
Searching back through my log book (remember those ?), I discover my
last QSO with him was on 7 Nov 76. This was on 144 MHz and I remember
he was (of course) using a homebrew rig, I think fully solid state.
My main recollection of the time was being overawed by a QSO with
someone so well-known. It seems he was experimenting up until the end.
--
Garry