SX-117 revision B to C
All: I have read the very good explanation of the different revisions to the
SX-117. Mine is a post-B model, which means that the notch filter doesn't
affect the AGC response.
I am inclined to
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Dave MARS Maples
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#31567
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Re: S-85 refurbish: I've got a problem during the RF alignment of bands 1 and 2 - trimcaps don't peak!
Emanuele, we are happy to see your success so far!
We wonder firstly if band 1 and 2 work = bring in stations at all?
It seems strange that 2 bands have the same symptoms, and they are in the first
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don Root
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#31566
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Re: S-85 refurbish: I've got a problem during the RF alignment of bands 1 and 2 - trimcaps don't peak!
My first thought is the bandswitch.? Work it back and forth and use some deoxit or other contact cleaner.? Of course inspect it and use your DMM to verify continuity too.? You mention problems with
By
Nick, W1NJC
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#31565
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S-85 refurbish: I've got a problem during the RF alignment of bands 1 and 2 - trimcaps don't peak!
Hello again guys.
Performing the RF alignment of the S-85 I am refurbishing, I got the following problem in bands 1 and 2.
The setup conditions were as per service manual:
Sig-gen (HP 8640B)
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Emanuele Girlando
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#31564
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Re: SX-117 run number?
Hi......Jack!
Cool!? Mine is run 6; its prefix is 117005.
Curiously, the next 3 digits on mine are 416.? Yours are 516.? I wonder what those 3 digits mean.? Is it a coincidence that both have
By
HF
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#31563
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Re: SX-117 run number?
That would be a 7th production run receiver. The first production run is always a zero in the last digit of the first set of 6 numbers, a 1 is run 2 and so on.
Walt Cates,
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waltcates
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#31562
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Edited
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SX-117 run number?
I just? recieved a? SX-117 thatI plan to restore and put in service.? It's serial number doesn't seem to match up with Walt's run list.? I'm assuming that the first 6 digits are the serial number
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Jack Brabham - KZ5A
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#31561
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Edited
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Re: S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
Thank you very much to all of you for your suggestions.
I preferred option 2: craft the tool my self.
*Paul* : I suppose you misread my first statement: it is the last " task " in a project, no the
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Emanuele Girlando
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#31560
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Edited
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Re: S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
This set should work for you.
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waltcates
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#31559
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Edited
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Re: S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
For what it may, or may not, assist... I pulled my late SX-99 off the shelf to see the IF cans. They are slot, vice hex tuning slugs. I then looked through about 100 tuning tools from Xcelite, GC,
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D. Platt
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#31558
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Edited
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Re: S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
Emanuele,
The last project, wow. ?I still have about 9 Hallicrafters on the shelf waiting for the dust to be blown off.
One is a SX-99 so I may have to also make a tuning tool. ?I’ve had to make
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Paul Lemmon
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#31557
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Re: S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
Emanuele look at this at least to get an idea of what was used back then in North America
https://www.radiodaze.com/alignment-tool-kit-item-tl-align1/
One of these might fit
Are you
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don Root
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#31556
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Edited
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Re: S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
Yes, they are modern stuff..
what i miss are the old tools..
so the question is: what are the slot measures of the Hallicrafters IF cans (p/n 050-30024[2,3]) old cores?
(this picture, showing the
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Emanuele Girlando
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#31555
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Edited
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Re: S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
Emanuele, about when did you buy these tools?
Likely these are more recent ones made for newer, smaller cores.
I recall looking into cores a year ago and there are many shapes and sizes now.
The
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don Root
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#31554
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Edited
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S-85 (SX-99) IF cans alignment : What adjusting tool do I have to use to match the size of the cores' slot?
I am approaching the last task in my S-85 refurbish project: Alignment.
For those IF cans I cannot find the right tool mechanically match those cores' slot: it is too long and too large.
I own these
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Emanuele Girlando
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#31553
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Edited
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SX42 FM is "funky"
I now own an SX-42 I seem to be getting quite a collection here...... SX-9, S-19R, S-38C, 5R10, SX-100, SX-43? .
Anyway, everything is working, BUT the FM is "funky". Aside from it being quite
By
Howard
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#31552
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HT-46 T3
This is a real long shot. I need a T3 for the HT46, part# 050-002146. It is the 15-meter transformer.
AND DO YOU WANT TO HAVE FUN. I got the transformer out. I did it with a long break between each
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waltcates
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#31551
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Re: S-38 recapping Query
Bruce,
Thanks for additional info. ?I will verify I only have DC there.
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W4LSV Barry
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#31550
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Re: S-38 recapping Query
Crap! 12SK7….
[email protected]> wrote:
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Bruce Collins
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#31549
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Re: S-38 recapping Query
The small capacitor on the screen node of the 12SK87 is to insure there is no AC ripple or any RF on the screen.
There should only be DC here.
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Bruce Collins
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#31548
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