Tek 46x Parts - UK Vintage Radio Repair and Restoration Discussion Forum

WaveyDipole · 10th Jun 2023, 2:26 pm

I have a number of Tektronix 46x spare parts up for grabs. Some are from a 468, others may suit other 46x series scopes. All items are FOC, cost of postage only (assuming I can find the packaging). I would prefer the CRT be collected for obvious reasons but I *may* be able to post, again subject to finding sufficient and appropriate packing. I do not know whether the PCBs are fully functional but am presuming so.

1) Attenuator Board Part 670-6375
2) CRT part 154-0731
3) Rods and shafts

WaveyDipole · 10th Jun 2023, 2:30 pm

4) Timebase board part 670-6374
5) 468 Trace and holdoff pots
6) Various salvaged unbroken knobs
7) 468 Facia plate

WaveyDipole · 10th Jun 2023, 2:38 pm

8) 468 Graphics board part GA-6852-02
9) 468 PSU board part GB-6853-02
10) 468 CPU to graphics module ribbon cables
11) 468 Transformer part 120-1302-00 (windings seem to test OK)

WaveyDipole · 10th Jun 2023, 2:42 pm

12) Filter bezel
13) 468 Intensity/Position pots
14) Trigger board (*please read note)
15) CPU board (**please read note)
16) ROM chips (***please read note)

* there is one chip missing. I have the original with one broken leg. It was clearly knocked by something as all legs are bent.

** the original ROM chips are missing probably because they were scavenged as the scope chassis was a parts donor. This may indicate that the board is faulty but I don't know the history and was not in a position to test it. I could possibly part out the individual chips but would prefer a taker for the complete board.

*** Non-original ROM chips on adapters. Happy to bundle items 15 and 16 together.

Chris55000 · 10th Jun 2023, 3:47 pm

Can I register interest in 1, 15 and 16 please?

I've just tested my '468 and it bogged out with a serious self–test failure, and I have a Sig. Analyser and QService's Service Manual to go through it with!

PM Sent

Chris Williams

Chris55000 · 10th Jun 2023, 5:58 pm

I'd also like to register in an interest in The Graphics PCB Item No 8 as I think I might have a faulty TRW chip in my '468 – the +5 V is being dragged down and comes back up when the chip is removed!

Second PM sent

Chris Williams

ajgriff · 10th Jun 2023, 7:08 pm

Hope you don't mind me asking but do you still have a trigger slope knob as arrowed in the attached photo? Even a damaged one would be better than nothing which is what I have at the moment.

Alan

WaveyDipole · 10th Jun 2023, 7:18 pm

Alan, I don’t think the photgraph got attached? I think I know the one you mean and will check.

ajgriff · 10th Jun 2023, 8:01 pm

Sorry, forgot the photo!

Alan

WaveyDipole · 10th Jun 2023, 8:44 pm

Yes, that’t the one I imagined it was. I had a look but unfortunately don’t have that one. The only one that might fit the shaft is the red timer cal knob, however I would like to keep those together as a set.

ajgriff · 10th Jun 2023, 8:55 pm

Thanks for looking anyway, much appreciated. Would like to put in a claim for the undamaged knob selection (6) in any event.

Alan

WaveyDipole · 11th Jun 2023, 9:41 am

Items 1, 8, 15 and 16 are now taken.

WaveyDipole · 11th Jun 2023, 4:43 pm

Item 6 is now spoken for as well.

Forgot to mention in my OP that although the items are FOC, I would appreciate being reimbursed for the cost of postage.
Thanks.

Thank you for the interest so far. I am glad that some of these parts at least have found a new home and will hopefully be of use to someone.

Chris55000 · 13th Jun 2023, 12:40 pm

Bummer!

I thought I had a pair of those knobs in my '468 spares carcass I got from Worcester, but the slope knobs and the outer one are missing off that as well!

Sorry!

Chris Williams

WaveyDipole · 16th Jun 2023, 5:27 pm

Items 2, 3, 4, 5, 7, 11, 12, 13 and 14 are still available.

10th Jun 2023, 2:26 pm	#1
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Tek 46x Parts I have a number of Tektronix 46x spare parts up for grabs. Some are from a 468, others may suit other 46x series scopes. All items are FOC, cost of postage only (assuming I can find the packaging). I would prefer the CRT be collected for obvious reasons but I may be able to post, again subject to finding sufficient and appropriate packing. I do not know whether the PCBs are fully functional but am presuming so. 1) Attenuator Board Part 670-6375 2) CRT part 154-0731 3) Rods and shafts Attached Thumbnails

10th Jun 2023, 2:30 pm	#2
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts 4) Timebase board part 670-6374 5) 468 Trace and holdoff pots 6) Various salvaged unbroken knobs 7) 468 Facia plate Attached Thumbnails

10th Jun 2023, 2:38 pm	#3
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts 8) 468 Graphics board part GA-6852-02 9) 468 PSU board part GB-6853-02 10) 468 CPU to graphics module ribbon cables 11) 468 Transformer part 120-1302-00 (windings seem to test OK) Attached Thumbnails

10th Jun 2023, 2:42 pm	#4
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts 12) Filter bezel 13) 468 Intensity/Position pots 14) Trigger board (please read note) 15) CPU board (please read note) 16) ROM chips (*please read note) there is one chip missing. I have the original with one broken leg. It was clearly knocked by something as all legs are bent. the original ROM chips are missing probably because they were scavenged as the scope chassis was a parts donor. This may indicate that the board is faulty but I don't know the history and was not in a position to test it. I could possibly part out the individual chips but would prefer a taker for the complete board. * Non-original ROM chips on adapters. Happy to bundle items 15 and 16 together. Attached Thumbnails Last edited by WaveyDipole; 10th Jun 2023 at 3:06 pm.

10th Jun 2023, 3:47 pm	#5
Chris55000 Nonode Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 2,641	Re: Tek 46x Parts Can I register interest in 1, 15 and 16 please? I've just tested my '468 and it bogged out with a serious self–test failure, and I have a Sig. Analyser and QService's Service Manual to go through it with! PM Sent Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed! Last edited by Chris55000; 10th Jun 2023 at 4:13 pm.

10th Jun 2023, 5:58 pm	#6
Chris55000 Nonode Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 2,641	Re: Tek 46x Parts I'd also like to register in an interest in The Graphics PCB Item No 8 as I think I might have a faulty TRW chip in my '468 – the +5 V is being dragged down and comes back up when the chip is removed! Second PM sent Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed! Last edited by Chris55000; 10th Jun 2023 at 6:10 pm.

10th Jun 2023, 7:08 pm	#7
ajgriff Nonode Join Date: May 2004 Location: Halifax, West Yorkshire, UK. Posts: 2,486	Re: Tek 46x Parts Hope you don't mind me asking but do you still have a trigger slope knob as arrowed in the attached photo? Even a damaged one would be better than nothing which is what I have at the moment. Alan

10th Jun 2023, 7:18 pm	#8
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts Alan, I don’t think the photgraph got attached? I think I know the one you mean and will check.

10th Jun 2023, 8:01 pm	#9
ajgriff Nonode Join Date: May 2004 Location: Halifax, West Yorkshire, UK. Posts: 2,486	Re: Tek 46x Parts Sorry, forgot the photo! Alan Attached Thumbnails

10th Jun 2023, 8:44 pm	#10
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts Yes, that’t the one I imagined it was. I had a look but unfortunately don’t have that one. The only one that might fit the shaft is the red timer cal knob, however I would like to keep those together as a set.

10th Jun 2023, 8:55 pm	#11
ajgriff Nonode Join Date: May 2004 Location: Halifax, West Yorkshire, UK. Posts: 2,486	Re: Tek 46x Parts Thanks for looking anyway, much appreciated. Would like to put in a claim for the undamaged knob selection (6) in any event. Alan

11th Jun 2023, 9:41 am	#12
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts Items 1, 8, 15 and 16 are now taken.

11th Jun 2023, 4:43 pm	#13
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts Item 6 is now spoken for as well. Forgot to mention in my OP that although the items are FOC, I would appreciate being reimbursed for the cost of postage. Thanks. Thank you for the interest so far. I am glad that some of these parts at least have found a new home and will hopefully be of use to someone.

13th Jun 2023, 12:40 pm	#14
Chris55000 Nonode Join Date: Aug 2007 Location: Walsall Wood, Aldridge, Walsall, UK. Posts: 2,641	Re: Tek 46x Parts Bummer! I thought I had a pair of those knobs in my '468 spares carcass I got from Worcester, but the slope knobs and the outer one are missing off that as well! Sorry! Chris Williams __________________ It's an enigma, that's what it is! This thing's not fixed because it doesn't want to be fixed!

16th Jun 2023, 5:27 pm	#15
WaveyDipole Nonode Join Date: Mar 2013 Location: Leicester, UK Posts: 2,397	Re: Tek 46x Parts Items 2, 3, 4, 5, 7, 11, 12, 13 and 14 are still available.