A couple of Oscilloscopes - anyone want them ?

[Channel Hopper]

I am clearing out the garage and have found a couple of oscilloscopes that I cant recall where they came from.

They have a very big display and lots of knobs on them. Probably early transistorised, putting them in the early 70s.

I do remember they had the same fault in each, (no EHT line ?) and they light up when plugged in, but thats all.

I will take a couple of pictures when I pull them from the box, but if anyone wants them, they are yours.

I live about 10 miles south of Heathrow.

 

[gameboy]

Why not put them on eBay?

Buyer collects...

 

[Channel Hopper]

Why not put them on eBay?

Buyer collects...

Er, no. I've been too reliant on people winning stuff and then not turning up (quite often after I've planned around them).

Anyways the sort of price things of this nature go for on auction sites means the eBay cost probably exceeds the sale value.

These are Jerrold Texscan Oscilloscopes, model number AL-40. Complete as far as I can gather, even the push buttons and dials are smooth in operation so I doubt they are too badly affected by storage.

Last calibration sticker on one confirms a date of 1985, and they were orignally used at Marconi, Frimley.

Will post a couple of pictures tomorrow.

 

[Lancelot]

O/T I was offered a temping job there at about the same time as the scopes were ticketed O-Ha


L.

 

[Channel Hopper]

Here they are

 

[spiney]

I've never heard of it either, not a "usual name".

But, from those pics, "corp" is obviously USA, and a google search will show quite a few old Texscan scopes. Looks like early 1980s stuff.

The present website is: http://www.texscan.com/ , but different stuff now.

 

[Channel Hopper]

The only specification I have is 230V and 0-350 MHz.

 

[Llew]

As they're spectrum analysers, they're not really suitable for use as oscilloscopes, i.e. checking waveforms of a defined frequency.
I suspect they were used to sweep and line up a set of IF frequencies in VHF radio transmitters/ receivers etc.

Llew

 

[spiney]

Well spotted ..... I was looking for "trigger" but couldn't find it ......

(probably becasue that's Roy Rogers' horse).

http://images.art.com/images/-/Roy-Rogers-Trigger--C10048364.jpeg .

 

[Llew]

Probably 'home on the range' O-Ha

That's the frequency domain (speccy) as opposed to the time domain ('scope)




Llew

 

[spiney]

he probably went into the same pot with the beans ....

meanwhile, here's a REAL MAN's tool:

www.thevalvepage.com/testeq/cossor/1035/1035.htm .

Yes, ok, I do understand the difference, thought the large graticuled screen looked a bit funny but didn't "twig" ......

Cossor, once a well known name, now almost forgotten ......

www.r-type.org/static/makecoss.htm .
www.vintage-radio.com/manufacturers-and-sets/cossor.html .

 

[Channel Hopper]

As they're spectrum analysers, they're not really suitable for use as oscilloscopes, i.e. checking waveforms of a defined frequency.

DOH

(there are a couple of other connections at the rear -vertical, horizontal, Blanking out. and Ext Drive out)

 

[Lancelot]

I used to own a Cossor scope once.
Ace bits of kit.


L

 

[spiney]

Cossor was once THE scope, before tektronix or hp came along ......

 

[Channel Hopper]

Cossor was once THE scope, before tektronix or hp came along ......

I still have a Furzehill model 0100 somewhere in the shed. Try finding any data on that machine ......

 

[spiney]

OK Llew, you got me that time, must admit I never heard of it! Sounds interesting, any more details?

However, I can remember Cossors being in widespread general use (I'm not just webtrawling).

Sorry I didn't recognise that was a spectun analyser, should have, as it did look like a funny 'scope, but just accepted what Hopper said.

As you say, scope draws a pic of amplitude/time, and analyser of power/frequency.

 

[Llew]

OK Llew, you got me that time, must admit I never heard of it! Sounds interesting, any more details?

I think that might be one of CH's 'obscurantist specials' spiney O-Ha

@CH -
Does it include a discombobbulator wobbulator?


Llew

 

[Channel Hopper]

@CH -
Does it include a discombobbulator wobbulator?

I dont know, its got too many frigginn knobs on it

 

[Llew]

Good gawd CH, I thought you were having us on there O-Ha

Looks like something dug up by the 'Time Team'


Llew

 

[Channel Hopper]

Good gawd CH, I thought you were having us on there O-Ha
Looks like something dug up by the 'Time Team'

Since when have I wound anyone up ?;)

It's a large shed
(I think I'll get my horn out next )