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It pays to research...must be someone new to the hobby. This is
probably the highest bid I've ever seen on a older service grade
EICO 460 scope (C$230!) and no guarantee it even works. Could have
any number of nice Tek models for this price. Anyway, the seller
must be happy...



Cheers,
Tony

Link got screwed up...


ViewItem&item=2594925082&category=45005

--- In TekScopes@..., "Tony Denning" <tdenning@s...>
wrote:

It pays to research...must be someone new to the hobby. This is
probably the highest bid I've ever seen on a older service grade
EICO 460 scope (C$230!) and no guarantee it even works. Could

have

any number of nice Tek models for this price. Anyway, the seller
must be happy...



Cheers,
Tony

Does the Royal Canadian go with it? That model Eico 460 was one of my first
o'scopes I ever owned. It's not even restored! I subsequently replaced it
with a Tek 515 which was a beautiful scope. I have regreted selling it ever
since. The Eico was no loss. I currently use a 465B/DM44 as my primary
scope and I have a 335 and a 323 for traveling. I also fiddle with OS
245P/U and have a 465 and 475 as well. I just sold a guy a working 434 with
pouch, cover and 50 mHz probe for 115 bucks.

There's a much nicer for a buck...

Who needs triggered and calibrated sweep or vertical calibration either :)
I used to have one of these..and kept an octupus type curve tracer hooked to it. Just to quick check diodes and transistors.
This scope even poorly performed at that too. Too much phase shift between vertical and horiz amp. but continued to use it till the transformer smoked.

Maybe would give someone $10 for one, but that is about it. Sort of have to admire the tv techs from that time if thats all had to work with for a scope. Even in high school electronics had a triggered sweep scope...as matter of fact telequipment. Not sure what model it was..single trace with a nice crisp bright green trace. That was a tube one but not sure which model. Seemed like didnt have any problems with though. Never had a chance to take one apart though.



Mark Anton, Owner
Heights TV & VCR Service
3946 Central Ave. NE
Columbia Heights MN, 55421

Phone is 763-789-1767

(area code formerly 612)





----Original Message Follows----
From: "Tony Denning" <tdenning@...>
To: TekScopes@...
Subject: [TekScopes] Oscilloscopes 101 - eBay
Date: Wed, 11 Feb 2004 03:07:58 -0000

It pays to research...must be someone new to the hobby. This is
probably the highest bid I've ever seen on a older service grade
EICO 460 scope (C$230!) and no guarantee it even works. Could have
any number of nice Tek models for this price. Anyway, the seller
must be happy...



Cheers,
Tony

_________________________________________________________________
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Have seen some unbuilt Heathkits (scopes and other pretty trivial gadgets) go for astronomical prices, though I'm not not looking often now. Ego-bid war between two will do it: $900 IIRC, and several >500.

People will also pay lots for Heath's earlier (green case) calibrator, with not very impressive specs; unuseable for fast Tr check. -- whereas one of their last new kits created, the Model IG-4244: beats out Tek's and HP's expensive spread, while also providing a clean typ. 700 pSec Tr into 50 ohms. Not a 284, but plenty fine for sum-squares verification to 350 MHz. These have occasionally shown up and slipped through the cracks - I bought a spare for my hand-assembled one for ~$50.

'Course too, *cough* one of those Warz got me ~$420 for a Tek 453! (admittedly pristine, calibrated, photographed Tr.) in about '00 or '01.

Call it Psych 101A?


{cackle}

Ashton

Tony Denning wrote:

-- whereas
one of their last new kits created, the Model IG-4244: beats out Tek's
and HP's expensive spread, while also providing a clean typ. 700 pSec Tr
into 50 ohms. Not a 284, but plenty fine for sum-squares verification
to 350 MHz.

My favourite is the Tek 111 pretrigger pulse generator. This is an
avalanche pulser, and gives a really clean 400ps rise time. Since it has an
adjustable delay between a pretrigger pulse and the main output you can kick
a timebase into action well in advance of the main event. This is OK for
testing things using a 7T11/7S11/S1 set up with 1GHz bandwidth (using sum of
squares). Or (and I haven't tried this) use the 400ps edge to trigger a
tunnel diode pulser to generate a really fast event, but with an adjustable
pretrigger.

Craig