Date   
Re: Tektronix 555 oscilloscope indicator unit on eBay

Dave Voorhis
 

On 6 Oct 2019, at 01:06, Jack Reynolds <jackandladyreynolds@...> wrote:

That's a steal compared to this: https://www.ebay.com/itm/Tektronix-knob-366-1400-01-Vertical-Sensitivity-5000-Series-oscilloscopes/271903057877 This guy is trying to sell one 5000 series knob for $8800.
That one looks like an advert for his “large assortment of unique and high quality test and measurement and electronics items for sale”, which if you send him a note as he asks, he’ll almost certainly give you a way to buy outside of eBay.

I’ve seen a fair bit of that with auto parts dealers, who’ll run an ad for a £500 lugnut or whatever but it’s just a way to get you to contact the seller.

Re: P6042 Current Probe Repair -- Need new probe cable

snapdiode
 

Tektronix 175-0431-01

Re: P6042 Current Probe Repair -- Need new probe cable

snapdiode
 

AFAIK they don't make this kind of cable. You'd need to check eBay for an official Tek cable assembly, they do show up like Halley's Comet once in a while...
Or you could remove the entire cable, pull out the broken wire, and fish in a new one with the proper wire pulling lube.

Re: Passive Scope Probe Tip Assembly Replacement

Lawrance A. Schneider
 

Hi,

If you have a few, I’d like one as well. Clearly JGK takes precedence over me.

Thanks, larry'

On Oct 6, 2019, at 1:01 AM, Stephen Hanselman <kc4sw.io@...> wrote:

Let me check stock on Monday, I have a crate of spare parts including several p/n’s of probe tips

Regards,

Stephen Hanselman
Datagate Systems, LLC
On Oct 5, 2019, at 14:46, jgkolek@... wrote:

Is anyone out there knowledgeable about probe tip assemblies?

I have a Tektronix P6137 which uses probe tip assembly 206-0378-00 (10X; 11.8 pF; 9M ohm). I am looking for an affordable tip replacement but haven't found any. I am considering using Caltest CT3667 (equivalent to 206-0441-00) as a substitute. Specs for CT3667/206-0441-00 are:10X; 8 pF; 9M ohm. I am assuming both tips have the same dimensions (both are 3.5 mm probe tips, and pictures I've seen online for both appear virtually identical other than the color of the tip end).

What kind of trouble will I have if I pursue this substitution? I am hoping I can simply screw in a CT3667 and adjust compensation for this substitution.

Regards,
JGK



Re: Tektronix 555 oscilloscope indicator unit on eBay

Dave Seiter
 

Over the years, I've seen a few of these types of items that have actually sold, and have never understood why.  I have a friend who thinks it's money laundering of some kind, but I'm not convinced.  
-Dave

On Saturday, October 5, 2019, 06:37:52 PM PDT, bobkrassa <bob@...> wrote:

Mostly ignorant sellers but some of this is people whose families have asked them to sell their collection and this allows them to show they are trying.
Bob Krassa AC0JL

Re: Tektronix 555 oscilloscope indicator unit on eBay

 

I'm afraid to ask how much he wants for the power cord for the 555?
Dennis Tillman W7PF

-----Original Message-----
From: John Williams
Sent: Saturday, October 05, 2019 3:45 PM

Some of you have probably noticed this on eBay by now. It is a 555 indicator unit, you have to provide your own cable and power supply. It is priced at a very reasonable $4750 US plus tax, license and shipping. However the tubes are included (apparently). Or you could buy say a pretty decent used car, or take the Mrs on a Caribbean cruise. Sorry if I am laughing too loud.

https://www.ebay.com/itm/TEKTRONIX-TYPE-555-DUAL-BEAM-OSCILLOSCOPE-1969-SERIAL-000631/143402679173?hash=item2163773b85:g:oJIAAOSwYsJdl79O



--
Dennis Tillman W7PF
TekScopes Moderator

Re: Tektronix 555 oscilloscope indicator unit on eBay

GerryR
 

Well, if you have an antique boat, you might want that old anchor to go with it!!

----- Original Message -----
From: "John Williams" <books4you@...>
To: <TekScopes@groups.io>
Sent: Saturday, October 05, 2019 6:45 PM
Subject: [TekScopes] Tektronix 555 oscilloscope indicator unit on eBay


Some of you have probably noticed this on eBay by now. It is a 555 indicator unit, you have to provide your own cable and power supply. It is priced at a very reasonable $4750 US plus tax, license and shipping. However the tubes are included (apparently). Or you could buy say a pretty decent used car, or take the Mrs on a Caribbean cruise. Sorry if I am laughing too loud.


https://www.ebay.com/itm/TEKTRONIX-TYPE-555-DUAL-BEAM-OSCILLOSCOPE-1969-SERIAL-000631/143402679173?hash=item2163773b85:g:oJIAAOSwYsJdl79O

Re: Passive Scope Probe Tip Assembly Replacement

Stephen Hanselman
 

Let me check stock on Monday, I have a crate of spare parts including several p/n’s of probe tips

Regards,

Stephen Hanselman
Datagate Systems, LLC

On Oct 5, 2019, at 14:46, jgkolek@... wrote:

Is anyone out there knowledgeable about probe tip assemblies?

I have a Tektronix P6137 which uses probe tip assembly 206-0378-00 (10X; 11.8 pF; 9M ohm). I am looking for an affordable tip replacement but haven't found any. I am considering using Caltest CT3667 (equivalent to 206-0441-00) as a substitute. Specs for CT3667/206-0441-00 are:10X; 8 pF; 9M ohm. I am assuming both tips have the same dimensions (both are 3.5 mm probe tips, and pictures I've seen online for both appear virtually identical other than the color of the tip end).

What kind of trouble will I have if I pursue this substitution? I am hoping I can simply screw in a CT3667 and adjust compensation for this substitution.

Regards,
JGK


P6042 Current Probe Repair -- Need new probe cable

@0culus
 

Hi all,

Got back to troubleshooting the P6042 again. When I left off I had determined that the red conductor in the probe cable is open. Suspecting it would be close to the amplifier due to previously observed failure of the strain relief tabs inside the amplifier chassis, I tried cutting some off the amplifier side in stages hoping to pass the break, but no dice. Honestly, the soldering job that was in there indicates to me that this had been done before, as it was rather messy.

Anyway, I think the best course is to simply replace to cable and probe with one that's know to be good. Any recommendations?

Thanks,

Sean

Re: Tektronix 555 oscilloscope indicator unit on eBay

bobkrassa
 

Mostly ignorant sellers but some of this is people whose families have asked them to sell their collection and this allows them to show they are trying.
Bob Krassa AC0JL

Re: Passive Scope Probe Tip Assembly Replacement

Jan Kolek
 

Brian,

Thanks for the info. I guess I am SOL. The options appear to be a) buy from Allied Electronics for $49 + shipping (before their supply is exhausted) or b) buy another complete P6137 probe with a good probe tip on eBay for even more $$.

Regards,
JGK

Re: Passive Scope Probe Tip Assembly Replacement

Jan Kolek
 

Dan,

Crap...I was afraid of that.

Thanks.

Regards,
JGK

Re: Tektronix 555 oscilloscope indicator unit on eBay

Jack Reynolds
 

That's a steal compared to this: https://www.ebay.com/itm/Tektronix-knob-366-1400-01-Vertical-Sensitivity-5000-Series-oscilloscopes/271903057877 This guy is trying to sell one 5000 series knob for $8800. There's another guy trying to sell 10 pcs of the same knob for 12.50 w free shipping

Jack Reynolds

On 10/5/2019 6:45 PM, John Williams wrote:
Some of you have probably noticed this on eBay by now. It is a 555 indicator unit, you have to provide your own cable and power supply. It is priced at a very reasonable $4750 US plus tax, license and shipping. However the tubes are included (apparently). Or you could buy say a pretty decent used car, or take the Mrs on a Caribbean cruise. Sorry if I am laughing too loud.


https://www.ebay.com/itm/TEKTRONIX-TYPE-555-DUAL-BEAM-OSCILLOSCOPE-1969-SERIAL-000631/143402679173?hash=item2163773b85:g:oJIAAOSwYsJdl79O


.

Re: Tektronix 555 oscilloscope indicator unit on eBay

Harvey White
 

Or you could take the wife on a Panama canal cruise, Princess Cruises, Crown Princess, 10 day cruise.

And you'd still have to buy the power supply (sold separately).

The cruise has sip and sail, a premium beverage package....

It's included, rather than the power supply, which isn't.

I'd rather go on a cruise, all due respect to a 555.....

Harvey

On 10/5/2019 6:45 PM, John Williams wrote:
Some of you have probably noticed this on eBay by now. It is a 555 indicator unit, you have to provide your own cable and power supply. It is priced at a very reasonable $4750 US plus tax, license and shipping. However the tubes are included (apparently). Or you could buy say a pretty decent used car, or take the Mrs on a Caribbean cruise. Sorry if I am laughing too loud.


https://www.ebay.com/itm/TEKTRONIX-TYPE-555-DUAL-BEAM-OSCILLOSCOPE-1969-SERIAL-000631/143402679173?hash=item2163773b85:g:oJIAAOSwYsJdl79O



Re: Tektronix 555 oscilloscope indicator unit on eBay

Jamie Ostrowski
 

Yes I saw that one too. Good grief! hahaha

On Sat, Oct 5, 2019 at 5:45 PM John Williams <books4you@...> wrote:

Some of you have probably noticed this on eBay by now. It is a 555
indicator unit, you have to provide your own cable and power supply. It is
priced at a very reasonable $4750 US plus tax, license and shipping.
However the tubes are included (apparently). Or you could buy say a pretty
decent used car, or take the Mrs on a Caribbean cruise. Sorry if I am
laughing too loud.



https://www.ebay.com/itm/TEKTRONIX-TYPE-555-DUAL-BEAM-OSCILLOSCOPE-1969-SERIAL-000631/143402679173?hash=item2163773b85:g:oJIAAOSwYsJdl79O



Tektronix 555 oscilloscope indicator unit on eBay

John Williams
 

Some of you have probably noticed this on eBay by now. It is a 555 indicator unit, you have to provide your own cable and power supply. It is priced at a very reasonable $4750 US plus tax, license and shipping. However the tubes are included (apparently). Or you could buy say a pretty decent used car, or take the Mrs on a Caribbean cruise. Sorry if I am laughing too loud.


https://www.ebay.com/itm/TEKTRONIX-TYPE-555-DUAL-BEAM-OSCILLOSCOPE-1969-SERIAL-000631/143402679173?hash=item2163773b85:g:oJIAAOSwYsJdl79O

Re: Passive Scope Probe Tip Assembly Replacement

Brian
 

Hi , I have just been in the same situation needing probe tips . I think you will find that using that part , compensating the probe will be very difficult if not impossible as the lower capacitance suggests that the cable is lower capacitance . For a X10 probe , tip capacitance X10 is approximately the cable and scope input capacitance . Best of luck finding a replacement tip , if you find any for the P6135A , I'd love to hear about it

Brian

On Saturday, 5 October 2019, 22:46:36 BST, jgkolek@... <jgkolek@...> wrote:

Is anyone out there knowledgeable about probe tip assemblies?

I have a Tektronix P6137 which uses probe tip assembly 206-0378-00 (10X; 11.8 pF; 9M ohm).  I am looking for an affordable tip replacement but haven't found any.  I am considering using Caltest CT3667 (equivalent to 206-0441-00) as a substitute.  Specs for CT3667/206-0441-00 are:10X; 8 pF; 9M ohm.  I am assuming both tips have the same dimensions (both are 3.5 mm probe tips, and pictures I've seen online for both appear virtually identical other than the color of the tip end).

What kind of trouble will I have if I pursue this substitution?  I am hoping I can simply screw in a CT3667 and adjust compensation for this substitution.

Regards,
JGK

Re: Passive Scope Probe Tip Assembly Replacement

Dan Rae
 

On 10/5/2019 11:16 AM, jgkolek@... wrote:
Is anyone out there knowledgeable about probe tip assemblies?

I have a Tektronix P6137 which uses probe tip assembly 206-0378-00 (10X; 11.8 pF; 9M ohm). I am looking for an affordable tip replacement but haven't found any. I am considering using Caltest CT3667 (equivalent to 206-0441-00) as a substitute. Specs for CT3667/206-0441-00 are:10X; 8 pF; 9M ohm. I am assuming both tips have the same dimensions (both are 3.5 mm probe tips, and pictures I've seen online for both appear virtually identical other than the color of the tip end).

What kind of trouble will I have if I pursue this substitution? I am hoping I can simply screw in a CT3667 and adjust compensation for this substitution.
The CT3667 will not compensate in a P6137 as is.  I've tried it. Works fine in a P6139A.

Dan

Re: P6139a with broken tip

Jan Kolek
 

Hi,

I just posted a new query elsewhere on this board with similar thoughts: can I use a CT3667 (206-0441-00 equivalent) used in P6139A to replace a 206-0378-00 used in a P6137?

Regards,
JGK

Passive Scope Probe Tip Assembly Replacement

Jan Kolek
 

Is anyone out there knowledgeable about probe tip assemblies?

I have a Tektronix P6137 which uses probe tip assembly 206-0378-00 (10X; 11.8 pF; 9M ohm). I am looking for an affordable tip replacement but haven't found any. I am considering using Caltest CT3667 (equivalent to 206-0441-00) as a substitute. Specs for CT3667/206-0441-00 are:10X; 8 pF; 9M ohm. I am assuming both tips have the same dimensions (both are 3.5 mm probe tips, and pictures I've seen online for both appear virtually identical other than the color of the tip end).

What kind of trouble will I have if I pursue this substitution? I am hoping I can simply screw in a CT3667 and adjust compensation for this substitution.

Regards,
JGK