开云体育

Hello All,
Back Story:
Bought a cheap 2213A off Marketplace with fuzzy display issue,
Fixed issue by replacing focus resistors,
discovered screen damage in that there was trace distortion in lower half of display,
started looking for new CRT,
Found a part #154-0838-00 CRT on Ebay, according to Tekwiki this CRT is compatible,
My current CRT is part#154-0861-00 but I order it anyway (price is right),
get replacement CRT and discover that the HV lead is different and the trace rotation coil is smaller,
double check part numbers and find out Tekwiki led me astray and their CRT number index is in error,
CRT is out of a 2213
Today:
I have done some research and it seems that the HV voltage is higher on the proper 2213A tube.
Now what I would like to know is if anybody has tried this substitution and was it successful?
Failing that is there any tips on where to find a #154-0861-00 tube,
They seem scarce on Ebay.
Thanks in advance for any help or suggestions

Hi Dave,

Can't answer your question on the substitution,
but I believe that I have a good used CRT for the scope that you
have. Let me know off the list if you would like it and we'll make a
deal. IIRC, I believe that it's the same tube in the 2235 and 2236
scope.

Let me know.



Kim Herron W8ZV
w8zv@...
www.goldenradioservice.com
616-677-3706



--
Kim Herron
W8ZV
w8zv at goldenradioservice dot com
www.goldenradioservice.com

On Thu, Feb 27, 2025 at 03:03 AM, TugboatDave wrote:

Now what I would like to know is if anybody has tried this substitution and
was it successful?

The info on TekWiki is obviously wrong.
154-0838-00 was used only 2213 and 2215.
154-0861-00 was used in 2213A, 2215A, 2235 and 2236.

Check out this old post on the same subject: /g/TekScopes/message/7170

/H?kan

Thanks for the replies, still have no joy on a direct replacement.
So the question still stands:
Will a 2213 crt work in a 2213A?
I realize that the HV lead will need to be adapted.

The service manuals for the 2213 and 2213A are on the TekWiki site and call
out the part numbers for the CRTs. They are both 154-0838-00, so they are
the same.



DaveD
KC0WJN


On Sun, Mar 30, 2025 at 16:45 TugboatDave via groups.io <hennessy=
[email protected]> wrote:

Thanks for the replies, still have no joy on a direct replacement.
So the question still stands:
Will a 2213 crt work in a 2213A?
I realize that the HV lead will need to be adapted.

On Sun, Mar 30, 2025 at 11:06 PM, Dave Daniel wrote:

They are both 154-0838-00, so they are the same.

That Wiki info is incorrect.

From my previous post (according to manuals and RPR)
154-0838-00 was used only 2213 and 2215.
154-0861-00 was used in 2213A, 2215A, 2235 and 2236.

and 2213/15 have 8kV anode voltage while 2213A/15A have 12kV.

/H?kan

Hakan,

Thank you. I must have missed your earlier post. I will make a note to
update the information on the TekWiki site.

DaveD
KC0WJN


On Mon, Mar 31, 2025 at 05:49 zenith5106 via groups.io <hahi=
[email protected]> wrote:

On Sun, Mar 30, 2025 at 11:06 PM, Dave Daniel wrote:

They are both 154-0838-00, so they are the same.

That Wiki info is incorrect.

From my previous post (according to manuals and RPR)
154-0838-00 was used only 2213 and 2215.
154-0861-00 was used in 2213A, 2215A, 2235 and 2236.

and 2213/15 have 8kV anode voltage while 2213A/15A have 12kV.

/H?kan