Citrojim's Skoda, Saxo, 207 and Bike Tales

Tell us your ongoing tales and experiences with your French car here. Post pictures of your car here as well.

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CitroJim
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by CitroJim » 14 May 2017, 13:09

Yes, the bike tubeless tyres are just like car ones in principle... The only difference is we run them with latex-based sealant in them as the spoke holes leak a little... I find mine hold up well and in the event of a puncture they seal-seal. I always carry a spare tube and a few CO2 cartridges just in case though...

So yes, I'd say safer and more comfy too I find....
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by Zelandeth » 14 May 2017, 17:29

Worth noting that updates on a Linux based system don't tend to drag the system to a crawl either as it actually handles task prioritization properly. You'll notice a bit of slowdown inevitably as it's a disc intensive process, but nothing like on a Windows machine where it seems to turn it into a doorstop for about ten minutes.

The only times I've found a reboot is needed is if you're looking at an actual new kernel version. Graphics card driver update (Nvidia in my case) needs the GUI restarting but that takes all of about 15 seconds.
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by Mandrake » 14 May 2017, 19:31

CitroJim wrote:
Hell Razor5543 wrote:OK, so next time I see Aldi or Lidl doing rechargeable batteries (and the charger) I will let you know. The batteries are normally around £3 per pack, and the charger (with a discharge capability) normally costs £12, and can handle Ni based batteries.


Thanks James :D

Steve, that 'scope is old now, it's got to be 40 if it's a day... It has a baby CRT in it and was really quite amazing when it was first introduced...

Now it is truly vintage but still very usable and useful...

I still have one of these Jim, which I believe was a direct competitor to the Thander:
Image
I don't remember exactly when I got it but it was probably the early 90's and it is still going strong. :)

Unfortunately the batteries are pretty knackered now due to lack of use leading to them sitting discharged for a long time.

They're 3x 2 volt cylinder shaped sealed lead acid batteries, (about the size of a D cell, but with spade connectors on one end) which as you can imagine don't like being left discharged! One day I will get some new batteries for it...

The three cylindrical cells are held in the rectangular box on the right hand side:
Image
Image

A rather nice little scope for 1976, dual trace chop or alternate, external triggering, auto mode, from memory it goes up to 15Mhz...
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by Hell Razor5543 » 14 May 2017, 19:38

Something like this, Simon? Just watch out for the price!;

http://www.ebay.co.uk/itm/LEAD-ACID-REC ... xyaURThbIF
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by Mandrake » 14 May 2017, 19:42

Hell Razor5543 wrote:Something like this, Simon? Just watch out for the price!;

http://www.ebay.co.uk/itm/LEAD-ACID-REC ... xyaURThbIF

Yes that looks like the right ones.

I replaced the cells in mine once already in the early 90's when I first got it as the originals were shot but that was about 25 years ago, and especially in the last 10 years it has hardly been used, so I forgive the cells for failing.... ;)

They do still work but I don't get nearly the run time that I should. They last about 30 minutes when it should last several hours.

I wonder if the motorbike mode on my intelligent car/motorbike battery charger (the Aldi one I bought) could revive them ? The three of them together is 6 volts at about 5Ah.
Last edited by Mandrake on 14 May 2017, 19:46, edited 2 times in total.
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Simon

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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by Hell Razor5543 » 14 May 2017, 19:45

Fingers crossed. [-o<
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by xantia_v6 » 14 May 2017, 19:57

CitroJim wrote:Now that's interesting Steve :) Thanks for that....

The only problem with my little Thander, one of these little bad boys:

Image


Back in 1986 I spent a few months working for a company that occupied a couple of floors of the Rivermill in St Ives (Cambs.) which is the building where that scope was designed. During that period, Thandar moved out of the building and for a few weeks they were filling skips with obsolete components and half-built prototypes. We would stay late until the Thandar employees had gone home, and then go through the skip looking for interesting stuff. I got a couple of working Microvision TV prototypes (which were nothing like the production version), but others fished out working production quality items. I think someone got a scope. I see the scope uses the same CRTs as the Microvision TVs. There was a later version of the TV (I am not sure that it made it to production) which had a peculiar cold-cathode CRT where the gun was at the bottom, not the back, and the image was formed on the back of the CRT, which you looked through to see the image. I had one of those CRTs as a souvenir, but lost it somewhere.

I heard that someone found an early hand crafted C5 prototype in the loft of the mill, but I didn't see it. In one of our offices, while running a telephone cable across a false ceiling, a colleague found a stash of Sinclair/Thandar products which had obviously been hidden by an employee while Thandar still occupied it.
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by ekjdm14 » 14 May 2017, 21:29

Interesting stuff, even for someone who knows virtually squat about these things, and that scope a few posts up appears to be displaying potentially the world-first 'emoticon' :rofl2:

I had the misfortune to spend a few months doing agency work for LINPAC mouldings in Winsford & they had/maybe still have an early C5 on a mezzanine floor above some offices gathering dust... I can't honestly say theft of it never crossed my mind! Shame it was just sat unloved...
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by Mandrake » 14 May 2017, 21:47

Hell Razor5543 wrote:Fingers crossed. [-o<

I managed to actually find the scope (!) and removed the batteries. They've sat for at least a few months since the last time I tried to use it.

Two of the three cells were 2.05 volts which is OK for sitting so long, the third was 1.85 volts which is suspiciously low. So either there is one bad cell (which would explain a lot) or the state of charge of that cell has got out of balance with the other two - quite possible when they are series connected and there is no balancing system like you'd see on a modern lithium ion series pack.

I put the charger on for about half an hour, and because the voltage was fairly low to start with it started off in its pulse charge rejuvenation mode. After that the two good cells were up to 2.20 volts and the "bad" cell had climbed to 2.00 volts. I also noticed that during each pulse the good cells were increasing by about 0.5v and the "bad" cell was increasing by only 0.2v. This is consistent with the good cells being nearly fully charged while the "bad" cell is still very discharged. (The voltage of a lead acid cell becomes more "flexible" when charge current is applied the closer to full charge it gets)

So at the moment I'm going to work on the assumption that the cell is actually ok but it's state of charge is way lower than the other two - so I have now stopped the charge and put an 8 ohm bleeder resistor across the two good cells for a while to bleed them down to the same charge as the other one to do a bit of manual cell balancing. Once their open circuit voltage is balanced I'll put them all back on charge again.

Fingers crossed. :)
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Simon

1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by CitroJim » 15 May 2017, 07:27

Simon, that's a lovely little 'scope you have and it looks rather higher quality and more functional than the little Thandar... I must admit yours is a new one on me...

Mike, interesting about Thandar... I saw another of their products at NVCF yesterday - a function generator in the same style of enclosure as my 'scope... It was on offer for a fiver - I was tempted but already have a good function generator. Besides, I came away with a massive haul of stuff as it was... I was happy to score a lovely set of Leak Sandwich speakers to complement my vintage Leak audio system properly along with another set of speakers and a very lovely and very high quality NOS 12" Warfedale speaker for a very small sum... I didn't really need it but couldn't resist it...

I got a great haul of vinyl there too along with yet another 70s Hacker transistor wireless that cost me £2 and works perfectly... I also came away with a rather nice little Roberts transistor wireless dating from the 70s for a fiver but that one needs work..

All in all, a great day :)

Now to catch up with a bumper crop of posts here on the forum!
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by Mandrake » 15 May 2017, 11:08

CitroJim wrote:Simon, that's a lovely little 'scope you have and it looks rather higher quality and more functional than the little Thandar... I must admit yours is a new one on me...

It's an American design (Miniscope MS-215) made by NLS (Non Linear Systems) out of California who I just discovered are still in business some 40 years later!

It looks to me like it shares the exact same CRT as the Thander - they must have been a popular CRT in the 70's for small displays. :lol:

If I remember right the battery was faulty when I first got it and it was otherwise working. The one Dad got had faulty batteries, a faulty Quad CMOS analogue switch (it's full of those for routing/switching in the analogue signal path) and the DC/DC inverter which generates the anode voltage for the CRT was also faulty. We were able to fix it and get it working as well.

I sometimes wonder if a portable computerised LCD based scope of today will still be working in 40 years or be working with very minimal repairs, or whether it would long since have been binned as un-repairable the first time something went wrong!

Anybody with a passing electronics knowledge could look at the circuit diagram for the MS-215 and understand it immediately. I have a printed copy of the circuit somewhere.

Here is the circuit of the MS-230 - I think its almost the same but has a 30Mhz bandwidth instead of 15Mhz:

http://www.qsl.net/kb7rgg/radio/schematics/ms230.gif

Just spotted this thread of a guy restoring a faulty one:

http://antiqueradios.com/forums/viewtop ... 8&t=284366

Some nice pictures :) Also an interesting quote:

"The tiny CRT's used in these were supplied by Telefunken, and were also used in the Sinclair Microvision TV of the mid-70's. "
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Simon

1997 Xantia S1 3.0 V6 Auto Exclusive in Silex Grey
2011 Peugeot Ion Full Electric in Silver

1977 G Special 1129cc LHD
1978 CX 2400
1997 Xantia S1 2.0i Auto VSX
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by ekjdm14 » 15 May 2017, 12:09

Mandrake wrote:Here is the circuit of the MS-230 - I think its almost the same but has a 30Mhz bandwidth instead of 15Mhz:

http://www.qsl.net/kb7rgg/radio/schematics/ms230.gif

Just spotted this thread of a guy restoring a faulty one:

http://antiqueradios.com/forums/viewtop ... 8&t=284366



Well, there went an hour of my day reading & trying to understand some of that thread... :rofl2: a lot of what was written is completely alien to me but still strangely interesting with what little understanding I do have.
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by demag » 15 May 2017, 12:59

I can't believe someone left a C5 on a mezzanine floor! Petrol or diesel? ;-)

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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by CitroJim » 15 May 2017, 17:52

Simon, thanks for all the information on your 'scope. I love reading restoration stories...

Today I've been busy (amongst many other jobs and tasks that have kept me away from the forum :() fixing the Roberts transistor Radio I got yesterday... Found a duff set of output transistors caused by a short-circuit electrolytic and spares are on order from good old eBay... 50 year old transistors that have been obsolete for 30 of those years remain freely available and cheap :)

I also gave the pile of vinyl I acquired yesterday a good scrub-up - no scratches on any of the records but all were unbelievably filthy and more or less unplayable as a result but a good wash has restored them a treat :)

The one thing I didn't think of looking at was the batteries in my little 'scope... In truth I've been too busy with other important tasks and only now have I been able to look at the forum in any detail...

The 'scope is next in the queue...
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Re: Citrojim's Activa, 1.9TD, 207 and Bike Tales

Post by elma » 15 May 2017, 18:53

What Vinyl did you find Jim?
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