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Type 106
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On Thu, Mar 18, 2021 at 05:21 AM, Eric wrote:
I haven¡¯t had to recap it until yesterday... And I¡¯ve had it for quite a while now. It ran without any issues. Fortunately the bad caps didn¡¯t take anything out in the way. They were not even leaky or anything, they were just DEAD as a door knob. Completely open with no capacitance whatsoever. Well... the 2000uF read about 3nF... It¡¯s not too much of a pain. Except for the 700uF for which you have to remove the fuse holder to be able to pull it out from underneath. Otherwise it¡¯s pretty straight forward. Make sure to use 105C rated caps though. |
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Also, it comes in a rather unusual (to me) case, which does appear to be
stock. /g/TekScopes/album?id=261997 That certainly looks like a Tek case, but it might not be the correct one for your 106. One of the instruments I bought years ago via ebay came with the wrong case, which happened to be nicely marked, as to what it was for. Deane Kidd had the correct case, but wanted my incorrect case as a core. I was happy to do that. I'm afraid can't get to my 106 right now to see what it's case looks like. |
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It doesn't look like the correct case to me.... and I've two of them.
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This is what I expect it to look like: (Not my image, wantonly ripped from google.) David On Thu, Mar 18, 2021 at 2:16 PM Jim Adney <jadney@...> wrote:
Also, it comes in a rather unusual (to me) case, which does appear to be |
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On Thu, Mar 18, 2021 at 07:24 AM, David Holland wrote:
Yes, I know what the right case looks like. It¡¯s the same as my 184. |
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I made some measurements on mine I used a crappy cable on purpose to get the worst rise time I could
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Teminated in to 50 Ohms Rise time - 9.2ns P-P voltage - 13.0 V Unterminated Rise time - 350ns p-p Voltage 72.8 Maxes out Rigol scope -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Stephen Sent: Thursday, March 18, 2021 12:33 PM To: [email protected] Subject: Re: [TekScopes] Type 106 On Thu, Mar 18, 2021 at 05:21 AM, Eric wrote: I haven¡¯t had to recap it until yesterday... And I¡¯ve had it for quite a while now. It ran without any issues. Fortunately the bad caps didn¡¯t take anything out in the way. They were not even leaky or anything, they were just DEAD as a door knob. Completely open with no capacitance whatsoever. Well... the 2000uF read about 3nF... It¡¯s not too much of a pain. Except for the 700uF for which you have to remove the fuse holder to be able to pull it out from underneath. Otherwise it¡¯s pretty straight forward. Make sure to use 105C rated caps though. |
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On Thu, Mar 18, 2021 at 11:10 PM, Eric wrote:
Re. into 50 Ohm: Be careful not to exceed the 'scope's maximum input on 50 Ohm. It's not so much the rise time that your Rigol shows, it's the quality of the square wave that makes it useful, especially a flat top and no more than around 5% percent over- and undershoot, otherwise you could use a triggered Jim Williams pulser just as well. Re. Unterminated: The maximum safe input voltage of 'scopes is dependent on the input frequency. Check your 'scope's specs. Of course, if you use a 10x probe, it's not as risky. Raymond |
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The type 106 arrived today from Germany.
It¡¯s in quite a very good condition, albeit a bit dusty. Which is to be expected. I haven¡¯t fired it up yet. The reasons being that the line cord the seller sent, doesn¡¯t fit, and I¡¯m inclined to recap it before I power it up. On the other hand, the enclosure, although unusual, seems pretty legit to me. It hasn¡¯t been cut down to fit this unit, as you can see by looking at the edges. They have the original paint on them. It ¡°may¡± not be original to this unit, but I don¡¯t know of any other Tek that it would have been for... Could it be a transition unit before they went to the more traditional case? Maybe? It¡¯s quite an older unit with the gold plated boards. Serial is 001467, if that tells you experts anything... Pictures here: /g/TekScopes/album?id=261997 |
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From what I have seen of Tek equipment you have an early production unit.
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The later case allowed for the four scope calibration units the 106, 191, 184 and 067-0502 to be stacked on top of each other so that they wouldn't slide off. On Monday, March 22, 2021, Stephen <stephen.nabet@...> wrote:
The type 106 arrived today from Germany. |
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Ken,
I think you are right. This is definitely an early production unit. Although to me, it looks like it might be a transition unit. The reason being that it does have the screw on the front panel to lock the unit in place. Which is how the mechanism works on the later cases. They might have had some leftover earlier type enclosures, and they decided to use them on some units, even though they were clearly designed for the newer cases. What startles me is that the case fits perfectly, and has obviously not been cut down or trimmed to fit, in anyway shape or form. The bottom feet look very much original as well. However, there is a small hole on the left side of the unit, when it¡¯s facing the user, that seems to be there to facilitate access to a trim pot control of some sort. But that control is not there; it¡¯s actually off center from that access hole. But maybe it was on even earlier units...? All this make me think it¡¯s a transition model. |
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For those who haven¡¯t seen this, this is how the GR874 connectors are mounted directly on the Fast Rise and Fast Fall outputs of the Type 106.
I definitely DO NOT want to mess with that! /g/TekScopes/photo/261997/1?p=Created,,,50,2,0,0 /g/TekScopes/photo/261997/0?p=Created,,,50,2,0,0 |
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Yea that is why I only changed the normal connector as it only has a wire to it. I did not mess with the fast rise and fall either.
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Eric -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Stephen Sent: Monday, March 22, 2021 1:06 PM To: [email protected] Subject: Re: [TekScopes] Type 106 For those who haven¡¯t seen this, this is how the GR874 connectors are mounted directly on the Fast Rise and Fast Fall outputs of the Type 106. I definitely DO NOT want to mess with that! /g/TekScopes/photo/261997/1?p=Created,,,50,2,0,0 /g/TekScopes/photo/261997/0?p=Created,,,50,2,0,0 |
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Cleaning it up revealed something else I had never seen before. Not that I¡¯m an expert or anything, but this is new to me.
The lettering of serial number is gold. I¡¯ve always seen it black... Has anyone come across a ¡°gold¡± serial number before?? /g/TekScopes/photo/261997/3?p=Created,,,50,2,0,0 Here¡¯s the hole on the right hand side when facing the unit. It doesn¡¯t lead to anywhere, though. The trim pot isn¡¯t centered. The case is also very well ventilated everywhere. /g/TekScopes/photo/261997/0?p=Created,,,50,2,0,0 More pictures: /g/TekScopes/photo/261997/2?p=Created,,,50,2,0,0 /g/TekScopes/photo/261997/1?p=Created,,,50,2,0,0 |
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walter shawlee
That is brass, not gold. the top plating (nickel or something) is on top of
a brass blank.? not as exotic as you might think. brass is very easy to engrave, which makes it popular for this task. when you see engraved or stamped serial numbers that are black, they have just been filled it with black enamel or paint. all the best, walter -- Walter Shawlee 2 Sphere Research Corp. 3394 Sunnyside Rd. West Kelowna, BC, V1Z 2V4 CANADA Phone: +1 (250-769-1834 -:- +We're all in one boat, no matter how it looks to you. (WS2) +All you need is love. (John Lennon) +But, that doesn't mean other things don't come in handy. (WS2) +Nature is trying very hard to make us succeed, but nature does not depend on us. We are not the only experiment. (R. Buckminster Fuller) |
Raymond Domp Frank
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