On Tue, 04 May 2004 13:56:24 +0100, Paul Burridge
wrote:

On Tue, 04 May 2004 01:55:47 GMT, (John Crighton)
wrote:

Yes, I know that unit, I have a 2001
Repairing that unit is not dead easy for hobbyists.

Hey, I must be semi-pro by now, with all the info I've been given over
the last 2 years. :-)
I'm screwed without a circuit diagram, anyway. Some people never seem
to need 'em but I've never understood how they manage. Given a
diagram, I'm actually surprisingly good at fault-finding.

I am assuming that AVO at Dover were useless with your
enquiries regarding information on the AVO CT378B

I just assumed they'd blank me on the age of it - like Tektronix - and
try to sell me one of their new ones (assuming they still make SGs,
that is).

If you wanted a good back up signal generator,
that is dead easy to repair. Here is one for sale.
Marconi TF 144H 50 ohms output Z. BNC connector.
10KHz to 72MHz
http://cgi.ebay.co.uk/ws/eBayISAPI.d...4746 090&rd=1

Thanks, I'll take a look later 2day after I've downloaded the update
for this latest virus that attacks your system via web portals.

I like that model, for a number of reasons.
Very stable frequency wise (when warmed up).
It has that nice smell inside that you get from valve gear. LOL
Everything inside is getatable.

Yeah, but what if one of those hard-to-find toobz goes tits-up?

Big knobs and easy to read dials, good for failing eyesight.
When the attenuator gets smoked by accidentally pressing a
microphone push to talk button of a transceiver under repair
on the bench, it is very easy to replace the resistors in the
attenuator.
It was not that heavy that I couldn't hump it up the gangways
of ships, decades ago, to do radio service work but it is way too
heavy for me now. Heh heh heh...

You might like to check out how far away that unit for auction,
is away from you. I wouldn't pay any more than 45 quid.
Even 25 quid is right on the limit for me. But if no one bids
you could get lucky. I bought one here in Australia for $10
at a Ham fest.

I only mentioned the TF144H incase you were looking for a
good cheap sig gen to accompany your TF2002AS do some
serious radio receiver work. Both have good attenuators.
Having two good signal generators would help you out with
all that filter and interference work that has been plaguing you
over recent months. One sig gen as the desired signal, the
second sig-gen as the interfering signal etc.

Sounds like a great idea, actually. The problem is of course that even
here we're hardly spoiled for choice IRO older test equipment.

Finding
one of those particular models for sale in this country would be
tricky, I'd imagine.

WHAT! YOU ARE KIDDING ME!
ARE YOU STILL ON THE ****?
It is a bleeding Marconi. I thought they were made in
Chelmsford. That is just up the street from where you
are in London, by Australian standards of distance.

The unit I have been going on about is for sale in Beds UK.
Where is that? Bedfordshire maybe. Four streets away
by Australian distances. Current bid 0 bids. 25 quid.
You didn't even look. Cripes.....tearing hair out.
C'mon Paul, sober up.
Regards,
John Crighton
Sydney