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2445B Capacitor Kit.


 

I have two power supplies for the 2445b and they both need new caps.? I know a few years ago there were cap kits that included all the key caps to replace in the supply.? My particular issue is with the AC High voltage section as the trace takes about 10 min to finally appear.? I have done some due diligence on the web looking but to no avail.? This is a great scope and I really want to freshen it up.? Any leads to cap kits ?? Or even a list of critical caps that have been replaced in the past would help.? Thanks in advance.


 

K8FC,

I think this is the kit you are looking for. He has offered this kit of caps for years:

?

Attached are the details.

Sam
W3OHM

Sam Reaves
ARS W3OHM
Owner / Moderator of:
LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io
Sprint Layout Group on Groups.io??
Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)



On Sun, Jul 9, 2023 at 8:09?PM dxradio33 <k8fc@...> wrote:
I have two power supplies for the 2445b and they both need new caps.? I know a few years ago there were cap kits that included all the key caps to replace in the supply.? My particular issue is with the AC High voltage section as the trace takes about 10 min to finally appear.? I have done some due diligence on the web looking but to no avail.? This is a great scope and I really want to freshen it up.? Any leads to cap kits ?? Or even a list of critical caps that have been replaced in the past would help.? Thanks in advance.


 

There is a kit on Ebay for $60.
This web page listes the capacitors, but I would compare them to the manual:

On Sun, Jul 9, 2023 at 8:09?PM dxradio33 <k8fc@...> wrote:
I have two power supplies for the 2445b and they both need new caps.? I know a few years ago there were cap kits that included all the key caps to replace in the supply.? My particular issue is with the AC High voltage section as the trace takes about 10 min to finally appear.? I have done some due diligence on the web looking but to no avail.? This is a great scope and I really want to freshen it up.? Any leads to cap kits ?? Or even a list of critical caps that have been replaced in the past would help.? Thanks in advance.


 

One more thing on the capacitor set. The seller requests pictures of your PCB assemblies before he will ship you an order to assure that you will have a complete set of the correct capacitors. This is due to the variance of build between different versions of the PCB's.

He charges a little more for the parts but does supply quality long life 105C rated parts. Considering the time and effort to sort this out the price seems?reasonable.

I do not have any personal experience with this seller but I have seen comments around the web where people have been quite satisfied.


Sam
W3OHM

Sam Reaves
ARS W3OHM
Owner / Moderator of:
LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io
Sprint Layout Group on Groups.io??
Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)



On Sun, Jul 9, 2023 at 8:39?PM Sam Reaves <sam.reaves@...> wrote:
K8FC,

I think this is the kit you are looking for. He has offered this kit of caps for years:

?

Attached are the details.

Sam
W3OHM

Sam Reaves
ARS W3OHM
Owner / Moderator of:
LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io
Sprint Layout Group on Groups.io??
Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)



On Sun, Jul 9, 2023 at 8:09?PM dxradio33 <k8fc@...> wrote:
I have two power supplies for the 2445b and they both need new caps.? I know a few years ago there were cap kits that included all the key caps to replace in the supply.? My particular issue is with the AC High voltage section as the trace takes about 10 min to finally appear.? I have done some due diligence on the web looking but to no avail.? This is a great scope and I really want to freshen it up.? Any leads to cap kits ?? Or even a list of critical caps that have been replaced in the past would help.? Thanks in advance.


 

I found this old quote on cap replacement that should be noted again:

From: "Ozan" <ozan_g@...>
To: [email protected]
Sent: Friday, March 26, 2021 11:37:29 AM
Subject: Re: [TekScopes] Recapping Tektronix 2465

You may already know but at least in some service manuals component
placement diagram shows location of C1132 and C1115 swapped
(wrong). This was the case for my 2467B, I assume it also applies
to 2465B. While desoldering take a note of the original value to
make sure. Ozan


Sam Reaves
ARS W3OHM
Owner / Moderator of:
LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io
Sprint Layout Group on Groups.io??
Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)



On Sun, Jul 9, 2023 at 8:51?PM Sam Reaves via <sam.reaves=[email protected]> wrote:
One more thing on the capacitor set. The seller requests pictures of your PCB assemblies before he will ship you an order to assure that you will have a complete set of the correct capacitors. This is due to the variance of build between different versions of the PCB's.

He charges a little more for the parts but does supply quality long life 105C rated parts. Considering the time and effort to sort this out the price seems?reasonable.

I do not have any personal experience with this seller but I have seen comments around the web where people have been quite satisfied.


Sam
W3OHM

Sam Reaves
ARS W3OHM
Owner / Moderator of:
LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io
Sprint Layout Group on Groups.io??
Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)



On Sun, Jul 9, 2023 at 8:39?PM Sam Reaves <sam.reaves@...> wrote:
K8FC,

I think this is the kit you are looking for. He has offered this kit of caps for years:

?

Attached are the details.

Sam
W3OHM

Sam Reaves
ARS W3OHM
Owner / Moderator of:
LeCroy Owners Group on Groups.io
Sencore Owners Group on Groups.io
Sprint Layout Group on Groups.io??
Pulsonix EDA Group on Groups.io
LPKF Owners Group on Groups.io
Electronics and Mechanical Hardware Design Engineering Manager
Staff Scientist Andritz Rolls Global Research Center (RETIRED)



On Sun, Jul 9, 2023 at 8:09?PM dxradio33 <k8fc@...> wrote:
I have two power supplies for the 2445b and they both need new caps.? I know a few years ago there were cap kits that included all the key caps to replace in the supply.? My particular issue is with the AC High voltage section as the trace takes about 10 min to finally appear.? I have done some due diligence on the web looking but to no avail.? This is a great scope and I really want to freshen it up.? Any leads to cap kits ?? Or even a list of critical caps that have been replaced in the past would help.? Thanks in advance.


 

Thanks very much Sam.? I swear I looked on Ebay and other places, I may have used wrong search terms.? Like "capacitor kit for Techtronics" or something.? In any event, thanks I will pick one up.?

Joe K8FC?


 

Good morning Mike and thank you very much for that article and list.? I have the manual in front of me and I am going to compare.? The parts listing sure saves a ton of research on Digikey and others.? Thanks again!


 

Good council Sam and thank you once again.?