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Hi Colin,
Tek made at least two versions of this which are different only in their overall length.
I do not know the part number for the two different lengths but I doubt it matters. The important thing is the length match between each leg.
I have one that is 8" long and two that are 16" long. I can spare one of my 16" ones. If this is the one you are looking contact me off list at dennis@.... Don't include "TekScopes" in the subject or your mail will be put into a folder where I might miss it.

Dennis Tillman W7PF

On Sun, May 27, 2018 at 10:50 am, Bert Haskins wrote:

A short time ago, a problem plugin took out F855 ( .15A ) in one of my
7623As.
I did not have a replacement so I patched in a SM fuse until I could get
the proper replacement.
Searching for a replacement fuse I found the price to be $8 and up per
single unit!
Is this really true? and does anyone know of a good replacement to F855?
I would really like to have a few spares
Thanks,
Bert

Funny stuff. I made an order paid almost what you are seeing. I thought there is no way it was for a single fuse. I figured it had to be a pack... Nope one fuse wrapped in bubble wrap. I wont be doing that again.

n4buq
11:01 am #148239

These look like a better price:



Thanks,
Barry - N4BUQ
_______________________
Looks like a much better deal.

Does anyone have one of these to sell or give away? It is a dual BNC adapter having two BNC male connectors with one female. The RG 58 tails of the BNC male connectors are matched to less than 0.1". Two of these are used for checking the triggering on 400-series scopes and I only have one. I tried to purchase one a few months ago for a website, but nothing turned up...
Please don't suggest alternatives as I simply want another one of these things.
Colin.

These look like a better price:



Thanks,
Barry - N4BUQ

A short time ago, a problem plugin took out F855 ( .15A ) in one of my 7623As.
I did not have a replacement so I patched in a SM fuse until I could get the proper replacement.
Searching for a replacement fuse I found the price to be $8 and up per single unit!
Is this really true? and does anyone know of a good replacement to F855?
I would really like to have a few spares
Thanks,
Bert

Actually, I think it is, because Simple Green was pretty
thoroughly discussed here, pro and con, for cleaning tektronix
equipment.

I'm pretty sure it would take an extreme effort, and some legal
challenge to get the manufacturer to discuss this beyond, don't
use out dated product.

-Chuck Harris

Dennis Tillman W7PF wrote:

The MSDS is here:


They claim that it is non reactive and chemically stable.
It is for water tolerant surfaces and should be rinsed.
Probably due to the citric acid.

Glenn

--
-----------------------------------------------------------------------
Glenn Little ARRL Technical Specialist QCWA LM 28417
Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"

Hi Daniel,
This is not the appropriate forum for your question.
Contact the manufacturer if you have questions about their product.
Dennis Tillman W7PF

I bought a 465 for cheap. No trace. Got it home and there is no HV at the -2450 TP. Is it time to start pulling multiplier ground to see if the trace comes back? Fuses don't blow, LV TPs' check fine. No fan, no power light but I do get the un-calibrated lights when turning the variable pots. I was/am hoping to fix this to help fund a working 7a11 for my 7633. Thanks guys

Hi folks,
? ?This is a bit off-topic, but I know we're discussed the cleaner "Simple Green" here in the context of using it (or preferably, NOT using it to clean equipment), but does anyone know what it's made of??
? More to my point, I vaguely recall that it was indeed green when I bought it but I just took out the spray bottle to clean something off my car and it is most definitely NOT green, but a rotten grass color brown. ? I presume it is decomposing. ? Has anyone else noticed this? ?It makes me wonder what it decomposes to and if that increases the likelihood of hidden corrosion if it gets into crevices in equipment.
? Dan

The MC1660L is in the MECL-III family. The 10H family was available at the same time but the parts were generally slower. If you substitute you may find performance differences, either a longer minimum pulse or some issue related to slightly longer propagation delays. MECL-III was only small-scale-integration in my memory and used more power. Motorola later introduced the 10KH family which was faster than 10H, but these were troublesome to use for most people because of their tendency to oscillate with anything other than a flawless layout.

From the SD32 user manual

Damn. Io does not take html.

I have one of these for auction sale on eBay. Currently $50. #153037008938 Worked fine last used in

2012. Cleaning out.

Kjo

When you ship this (to whoever wins the auction), please put a cheap SMA cap, or cheap 50-ohm load on the input. These travelling wave gate samplers are exceptionally static sensitive. My S4, S6 and S52 all do, as a matter of course, when they are not being used.

From the SD32 user manual







There is also a Tek applications note 42W-5850 which specifically talks about the S4 and S6 heads.

I have one of these for auction sale on eBay. Currently $50. #153037008938
Worked fine last used in 2012. Cleaning out.
Kjo

Also I just saw your video, tek advises against running the 2400 series outside the case because the dac will get hot quick. They say if you do to have an equal amount of air blowing across it

Sent from Mail for Windows 10

From: Dewey Wyatt
Sent: Saturday, May 26, 2018 8:03 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

Didn’t on my 2430a, if that wont work then look at this one
and I still have others if this one doesn’t fill the bill. The others are fine in my 2430a, I tried a bunch and finally setteled on these for the ease of using an external battery. The 2430 wouldn’t do anything with the memory dead. I do not know how much was left in the old dallas chips but it wouldn’t run setup. I did cut thru the casing and solder wires to an external battery, read and wrote to new chips and replaced them in zif sockets. When I started it up it was as good as new, no errors and all functions worked. I checked it for calibration and its spot on. You wont find cheaper dallas chips than these in the link and mine were both 2015 date code. I have a bunch of chips that I was trying to find a suitable replacement and I settled on the m48 chip for the ease of getting a separate battery to power it. I really didn’t need to go as far as I did the 1230’s would have been ok but you waste a good memory chip for a dead battery. Also I have a brand new pair of these same chip as ths soic but it is a dip style case with built in battery.
Sent from Mail for Windows 10

From: tmillermdems
Sent: Saturday, May 26, 2018 7:41 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

That is a 3.3 volt chip. The 2465A is 5 volts. Is that going to cause a
problem?



----- Original Message -----
From: "Dewey Wyatt" <kn4wddewey@...>
To: <[email protected]>
Sent: Saturday, May 26, 2018 7:14 PM
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves



For some reason the link didn’t go but here it is

Sent from Mail for Windows 10

From: Dewey Wyatt
Sent: Saturday, May 26, 2018 5:54 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

This is the memory chip I used it has a snaphat battery and I have some
extra boards to adapt a soic chip to the dip socket. Use the zif sockets
they are worth the price. If you need the adapters I have 8 left I used two
pair for the memory in mine I saved one extra pair and labeled them as an
incase they are powered by an 18650 3400mah battery that should outlast me.

Sent from Mail for Windows 10

From: Dewey Wyatt
Sent: Saturday, May 26, 2018 5:48 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

Alan my 2430 suffered from the same test fail. As I understand if the
battery in the dallas chip has 1.5 volt left then it still retains the calib
data,just not able to read or write to the memory the 1225 is nla but the
2430 is I did read mine and copy data but I had to perform surgery and add a
3v battery by cutting a hole in the chip to expose the battery. Read this
article and should you want to part with one keep me in mind. This was the
article that gave me the courage to try and repair mine. I have a lot of
data and a lot of chips that replace the 12 series dallas chips one with an
external replacable battery and also have a chip reader writer.


the aurthor of this is still around and he has answered questions for me.

Sent from Mail for Windows 10

From: Alan Halls
Sent: Saturday, May 26, 2018 5:31 PM
To: [email protected]
Subject: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

I just picked up 3 used Tektronix 2465A scopes for about $100 and am working
on getting at least one working. They have been sitting for a while and 2 of
them power on with a message "Test 04 Fail 03", which I understand means it
will need to be recalibrated due to the battery running out of power. I
tried bypassing the error and am able to get some flashing lights on channel
1, as long as the time is decreased to it's lowest setting, as soon as I try
getting it to trace the line over time I lose it. Here is a video which
includes all the buttons I have pushed :)



If anyone has dealt with this and knows what I should do next, I would
appreciate it.






---
This email has been checked for viruses by AVG.

Didn’t on my 2430a, if that wont work then look at this one
and I still have others if this one doesn’t fill the bill. The others are fine in my 2430a, I tried a bunch and finally setteled on these for the ease of using an external battery. The 2430 wouldn’t do anything with the memory dead. I do not know how much was left in the old dallas chips but it wouldn’t run setup. I did cut thru the casing and solder wires to an external battery, read and wrote to new chips and replaced them in zif sockets. When I started it up it was as good as new, no errors and all functions worked. I checked it for calibration and its spot on. You wont find cheaper dallas chips than these in the link and mine were both 2015 date code. I have a bunch of chips that I was trying to find a suitable replacement and I settled on the m48 chip for the ease of getting a separate battery to power it. I really didn’t need to go as far as I did the 1230’s would have been ok but you waste a good memory chip for a dead battery. Also I have a brand new pair of these same chip as ths soic but it is a dip style case with built in battery.
Sent from Mail for Windows 10

From: tmillermdems
Sent: Saturday, May 26, 2018 7:41 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

That is a 3.3 volt chip. The 2465A is 5 volts. Is that going to cause a
problem?



----- Original Message -----
From: "Dewey Wyatt" <kn4wddewey@...>
To: <[email protected]>
Sent: Saturday, May 26, 2018 7:14 PM
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves



For some reason the link didn’t go but here it is

Sent from Mail for Windows 10

From: Dewey Wyatt
Sent: Saturday, May 26, 2018 5:54 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

This is the memory chip I used it has a snaphat battery and I have some
extra boards to adapt a soic chip to the dip socket. Use the zif sockets
they are worth the price. If you need the adapters I have 8 left I used two
pair for the memory in mine I saved one extra pair and labeled them as an
incase they are powered by an 18650 3400mah battery that should outlast me.

Sent from Mail for Windows 10

From: Dewey Wyatt
Sent: Saturday, May 26, 2018 5:48 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

Alan my 2430 suffered from the same test fail. As I understand if the
battery in the dallas chip has 1.5 volt left then it still retains the calib
data,just not able to read or write to the memory the 1225 is nla but the
2430 is I did read mine and copy data but I had to perform surgery and add a
3v battery by cutting a hole in the chip to expose the battery. Read this
article and should you want to part with one keep me in mind. This was the
article that gave me the courage to try and repair mine. I have a lot of
data and a lot of chips that replace the 12 series dallas chips one with an
external replacable battery and also have a chip reader writer.


the aurthor of this is still around and he has answered questions for me.

Sent from Mail for Windows 10

From: Alan Halls
Sent: Saturday, May 26, 2018 5:31 PM
To: [email protected]
Subject: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

I just picked up 3 used Tektronix 2465A scopes for about $100 and am working
on getting at least one working. They have been sitting for a while and 2 of
them power on with a message "Test 04 Fail 03", which I understand means it
will need to be recalibrated due to the battery running out of power. I
tried bypassing the error and am able to get some flashing lights on channel
1, as long as the time is decreased to it's lowest setting, as soon as I try
getting it to trace the line over time I lose it. Here is a video which
includes all the buttons I have pushed :)



If anyone has dealt with this and knows what I should do next, I would
appreciate it.






---
This email has been checked for viruses by AVG.

That is a 3.3 volt chip. The 2465A is 5 volts. Is that going to cause a problem?

Plessy was one of many 'second source' suppliers for the Motorola designs which is common in the industry. That was done to insure a reasonable supply, in case the first company couldn't meet the demand, or went out of business. The MC10109 (Page 39) is supposed to be pin compatible, and are available on Ebay, cheap. They may, or may not work in this design, but if they do they would be a drop in replacement.

There is an original MC1660L on Ebay:



There are several choices for the MC10109:

<>

Michael A. Terrell

You may want to look at the more modern 10H series ECL family and see if you can find the equivalent gate in DIP - it may need some pinout tweaking though.

Ed

For some reason the link didn’t go but here it is

Sent from Mail for Windows 10

From: Dewey Wyatt
Sent: Saturday, May 26, 2018 5:54 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

This is the memory chip I used it has a snaphat battery and I have some extra boards to adapt a soic chip to the dip socket. Use the zif sockets they are worth the price. If you need the adapters I have 8 left I used two pair for the memory in mine I saved one extra pair and labeled them as an incase they are powered by an 18650 3400mah battery that should outlast me.

Sent from Mail for Windows 10

From: Dewey Wyatt
Sent: Saturday, May 26, 2018 5:48 PM
To: [email protected]
Subject: Re: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

Alan my 2430 suffered from the same test fail. As I understand if the battery in the dallas chip has 1.5 volt left then it still retains the calib data,just not able to read or write to the memory the 1225 is nla but the 2430 is I did read mine and copy data but I had to perform surgery and add a 3v battery by cutting a hole in the chip to expose the battery. Read this article and should you want to part with one keep me in mind. This was the article that gave me the courage to try and repair mine. I have a lot of data and a lot of chips that replace the 12 series dallas chips one with an external replacable battery and also have a chip reader writer.


the aurthor of this is still around and he has answered questions for me.

Sent from Mail for Windows 10

From: Alan Halls
Sent: Saturday, May 26, 2018 5:31 PM
To: [email protected]
Subject: [TekScopes] New to me Tek 2465A DM - Not Getting Waves

I just picked up 3 used Tektronix 2465A scopes for about $100 and am working on getting at least one working. They have been sitting for a while and 2 of them power on with a message "Test 04 Fail 03", which I understand means it will need to be recalibrated due to the battery running out of power. I tried bypassing the error and am able to get some flashing lights on channel 1, as long as the time is decreased to it's lowest setting, as soon as I try getting it to trace the line over time I lose it. Here is a video which includes all the buttons I have pushed :)



If anyone has dealt with this and knows what I should do next, I would appreciate it.






---
This email has been checked for viruses by AVG.