GW4TTA
Clwb
Radio Amatur y Ddraig
Dragon Amateur Radio
Club
(affiliated to the RSGB)
Can you help ?
We get a number of emails from people all over the world commenting on our web pages and occasionally asking for assistance. If you can help, or perhaps you know someone who can, please contact the individuals directly. And to those who emailed us, if you do get some help as a result of this page please let us know and we'll try and maintain this page.
"I have a marine receiver made by Marconi England U.K. probably in late
fifties. On the label: Marine Receiver N.S. 301
On an other label: Receiver type 101B, Serial number: 1594, Marconi's
Wireless Telegraph Co.Ltd. London. England.
I am looking for any info about the rig, I can not make it working
because the external power supply is missing.
If have any info could you please write to me" . Tomasz SQ5EKQ &
GM0VEQ email address:-
tomazuka@hpo.net (if you had problems emailing Tomasz,
please try again, I got his address wrong...)
"Hi John, My name is John Kemp. I was also a Radio Officer in the Merchant
Marine from 1964 to 1971. I was at the
Wireless College at Colwyn Bay in 1962 and 1963 and I am looking to
find any of my old classmates. I'm in Canada now.
If you can help in any way please let me know by email. In any event
good luck and best wishes." I've written to John as I'm an ex-Colwyn
Bay R/O myself. If there are others out there, get in touch...
John email address:-
johnkemp@compuserve.com
"I have a realistic scanner 0 to 1300 400 channel uhf/vhf i am after
a 0 to 30 recever not valve if you no any one thank you
Richard" email address:-
deadmeat1@ntlworld.com ( (if you had problems emailing
Richard, please try again, I got his address wrong...)
"Hi, Spotted your excellent web page while doing a search. I am interested
in obtaining any of B21/B40/R1154/19 set in
restorable condition and wondered whether you knew of such, or a man
who does. It would be very nice once again to have a
radio with a real tuning dial! Where has all of this stuff gone
- you used to be able to buy it by the ton - maybe I am showing
my age...Regards, Les. Hayward." email addressess:-
lhayward1@dera.gov.uk
lesh@corfe-castle.demon.co.uk
"Hi John, I am becoming increasingly desperate! I am trying to
find information regarding the BRT400 receiver...I wonder
whether you know anyone who may be able to help regarding circuit diagrams,
etc? I would happily pay any expenses
incurred. ANY information would be gratefully received!"
Many thanks, David Neale email address:-
davidneale@classicfm.net
"Can you help with a manual for an Marconi Atalanta ? " Keith.
email address:-
krrogers@xtra.co.nz
"John, Nice pictures, I too like the old rigs and am on the trail of
a Labgear LG300, a true boat anchor. Took my morse test at
Highbridge, not a million miles from Portishead...." 73, Ken, G3XSJ
email address:-
Mail@ken-brooks.fsnet.co.uk
"Dear John,
Did a search for "Hammarlund" and you popped up second. I'll post to
the group you mention about this, but thought since I'm
here. . .my Hammarlund180A (with the clock/timer instead of the freq.
presets) is losing audio (or RF power, maybe, the
needle drops all the way down meaning no signal) intermittently at
the higher-frequency bandwidths, say above 7.85 Mhz
(that being the division between the next-highest bandwidth on the
knob as you probably know). Anyway, it'll be running fine
for several minutes, then preceded by a "warbly" quality of some seconds
the signal will drop to nothing. If I leave it alone it
sometimes reappears in 2 to 6 minutes, sometimes never. If I turn the
unit off entirely (well, not entirely, just switch the RF knob
off; the separate on/off switch under the clock I generally leave on,
I think it keeps the high-freq. oscillator tube warmed up) for
five or ten seconds then switch back on, the audio is fine again for
some minutes before resuming its on/off ritual.
However. . .at the same time, if I just switch to the next lowest bandwidth
setting (4 - 7.85), all is well, audio is fine, no
dropout. Actually any of the lower bandwidths wok ok. But come
to think of it, the highest bandwidth setting (15.35-30 Mhz)
has worked only intermittently if at all for some time now; I'm rarely
home during the day for listening on those bands anyway,
but I don't think it's working. Could this be one or more high-frequency
tubes either gone or on the way out?
Or something horribly irreplaceable/expensive like an RF stage or a
power supply?
I confess despite having this radio for maybe 15 years (bought it at
a hamfest) I don't think I've replaced more than one or two
tubes. I haven't even looked in the thing while all this is happening
because...
a) I have a Sansui turntable wired in on top of it which is a bitch
to unhook and get out of the way, and
b) I wouldn't have the faintest idea of what to look for.
I know how to pull most tubes out or how to put the radio in the car
and take it to some TV guy who will probably bankrupt
me. I do recall looking at the workings of the bandswitch dial once
on the inside (wooden armature I think, some of it?) and
being terribly intimidated by it.
Despite this ignorance-level I've been SWLing for, let's see, nearly
30 years, the whole time too lazy to get my ticket. I notice
you worked for Portishead, I used to do quite a bit of maritime monitoring
and remember picking them up, perhaps I heard
you. Nowadays it's mostly domestic broadcast-listening, more often
than not the recent crop of look-out-the-sky-is-falling
reacionary political programming.
Any suggestions you can give me as to what to try first?" Thanks, Jack. email address:- surly@oh.vario.com
Page updated 24th. December 2000