UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Television and Video

Notices

Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

Closed Thread
 
Thread Tools
Old 13th Apr 2014, 3:25 pm   #1
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Is it a Bush TUG.68 ?

Hi all
Could anyone confirm as to whether this is indeed model TUG.68 please?

The set dose not have a back cover so no label other then the one from the tube
(Mullard radiant Screen, long life television tube MW43-69)

Is this a reliable tube or one of the problematic sorts ?
Attached Thumbnails
Click image for larger version

Name:	DSCN2466.jpg
Views:	270
Size:	74.8 KB
ID:	91468   Click image for larger version

Name:	DSCN2470.jpg
Views:	289
Size:	74.3 KB
ID:	91469   Click image for larger version

Name:	DSCN2472.jpg
Views:	265
Size:	52.4 KB
ID:	91470   Click image for larger version

Name:	DSCN2473.jpg
Views:	237
Size:	72.2 KB
ID:	91471  
Stubble is offline  
Old 13th Apr 2014, 3:29 pm   #2
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Photos from the back, is certainly look like the chasse from the TUG.68
Attached Thumbnails
Click image for larger version

Name:	DSCN2481.jpg
Views:	284
Size:	116.6 KB
ID:	91473   Click image for larger version

Name:	DSCN2482.jpg
Views:	225
Size:	140.3 KB
ID:	91474   Click image for larger version

Name:	DSCN2483.jpg
Views:	234
Size:	129.4 KB
ID:	91475   Click image for larger version

Name:	DSCN2485.jpg
Views:	232
Size:	95.6 KB
ID:	91476   Click image for larger version

Name:	DSCN2509.jpg
Views:	218
Size:	86.9 KB
ID:	91477  

Stubble is offline  
Old 13th Apr 2014, 3:32 pm   #3
Peter.N.
Dekatron
 
Join Date: Jul 2008
Location: Charmouth, Dorset, UK.
Posts: 3,371
Default Re: Is it a Bush TUG.68 ?

I don't remember a TUG 68 but certainly the earlier consoles were of the 'TUG' series. The chassis looks like a TV53 table model.

Peter
Peter.N. is offline  
Old 13th Apr 2014, 3:34 pm   #4
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

The only thing confusing me is on the receiver view from the service information, it doesnít show that big gold can.
Attached Thumbnails
Click image for larger version

Name:	DSCN2501.jpg
Views:	239
Size:	131.8 KB
ID:	91478   Click image for larger version

Name:	DSCN2510.jpg
Views:	212
Size:	91.9 KB
ID:	91479   Click image for larger version

Name:	Tug68-receiver-top.jpg
Views:	204
Size:	75.4 KB
ID:	91480  
Stubble is offline  
Old 13th Apr 2014, 3:42 pm   #5
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Ha, yes the service information covers the TV.63 & TV.66
Plus
The T.67, TUG.68 & 69 also the M.69
Attached Thumbnails
Click image for larger version

Name:	Tug68-maindeck-top.jpg
Views:	130
Size:	70.4 KB
ID:	91481   Click image for larger version

Name:	Tug68-circuit-maindeck.jpg
Views:	146
Size:	90.9 KB
ID:	91482   Click image for larger version

Name:	Tug68-circuit-receiver.jpg
Views:	134
Size:	121.7 KB
ID:	91483  
Stubble is offline  
Old 13th Apr 2014, 11:21 pm   #6
mark pirate
Dekatron
 
mark pirate's Avatar
 
Join Date: Mar 2008
Location: Worthing, West Sussex, UK
Posts: 4,822
Default Re: Is it a Bush TUG.68 ?

If That was the set on ebay, I was the person who informed the seller of it's correct identity, I think it has the back from an Ekco set.
Nice TV, they work well once restored, these sets always seem to have good CRT's. Lots of caps to change, but worth the effort.
Good luck with it.

Mark
mark pirate is offline  
Old 14th Apr 2014, 11:51 am   #7
Peter.N.
Dekatron
 
Join Date: Jul 2008
Location: Charmouth, Dorset, UK.
Posts: 3,371
Default Re: Is it a Bush TUG.68 ?

I cut my TV teeth on this chassis, we were Bush agents and sold many, they were reliable (for the time) especially the tuners as they were permeability tuned. They had a few odd faults but most were straightforward, don't think I ever had a LOPT fail.

Peter
Peter.N. is offline  
Old 14th Apr 2014, 4:27 pm   #8
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Hello Mark
Yes it was an eBay purchase, Hereford which is local for me, cheap too.

The set doses not have a back with it so that’s something to make during the restoration.

Hi Peter
Yes there dose seem to be a lot of caps to change, the chassis is very rusty on the upper sides and I intend to bring it inside for a few weeks to air in the warm before trying for first light.

I’m confused by the big gold can on the top of the receiver, I’m assuming it’s electrolytic which isn’t listed in the service information or shown on the chassis view, no mater I can check it our when the restoration begins. When will that be, I made a new years resolution not to start any new project till the current ones are finished (TV22, 1975 Hotpoint tumble dryer and Hoover 3110 washing machine), yes, what ever springs to mind as I found myself vacuuming it out yesterday, strictly for de-Arachnid treatment I never picked up a screwdriver once.

Cheers chaps for the positive identification

Lee

Last edited by Stubble; 14th Apr 2014 at 4:27 pm. Reason: Poor spelling
Stubble is offline  
Old 15th Apr 2014, 10:17 pm   #9
mark pirate
Dekatron
 
mark pirate's Avatar
 
Join Date: Mar 2008
Location: Worthing, West Sussex, UK
Posts: 4,822
Default Re: Is it a Bush TUG.68 ?

I have a Bush T57 in the roundtuit pile, Your chassis looks the same, usually the RF chassis is always rusty in these, nothing a good cleaning won't solve
I have had mine working, but the cabinet is pretty poor, I will start with the cabinet soon.

Mark
mark pirate is offline  
Old 15th Apr 2014, 10:33 pm   #10
HamishBoxer
Dekatron
 
HamishBoxer's Avatar
 
Join Date: Aug 2007
Location: W.Butterwick, near Doncaster UK.
Posts: 7,202
Default Re: Is it a Bush TUG.68 ?

Back in the early 70,s i remember a Bush console loptx burning a house down.All that was left of the set was a small amount of melted glass and metal.

Failure big time.(Sprotborough Doncaster)
__________________
G8JET BVWS Member and V.M.A.R.S
HamishBoxer is offline  
Old 18th Apr 2014, 5:00 pm   #11
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Well I couldnít leave it, just had to have a poke around on a bank holiday weekend.

First whipped out the receiver unit, before and after vacuuming, very rusty indeed.
I can see only 5 waxies that will require changing.

Got a lovely channel selector on this unit.
Attached Thumbnails
Click image for larger version

Name:	DSCN2520.jpg
Views:	205
Size:	72.7 KB
ID:	91698   Click image for larger version

Name:	DSCN2521.jpg
Views:	201
Size:	93.0 KB
ID:	91699   Click image for larger version

Name:	DSCN2544.jpg
Views:	193
Size:	88.8 KB
ID:	91701   Click image for larger version

Name:	DSCN2525.jpg
Views:	192
Size:	103.7 KB
ID:	91702   Click image for larger version

Name:	DSCN2550.jpg
Views:	189
Size:	80.4 KB
ID:	91703  

Stubble is offline  
Old 18th Apr 2014, 5:10 pm   #12
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Main chassis is in much better condition, before and after vacuuming.

Nothing that looks too major jumps out, the mains electrolytic is cooked and a resistor on the tube base is broken.
The EHT unit looks good so all seems very promising.
Attached Thumbnails
Click image for larger version

Name:	DSCN2529.jpg
Views:	187
Size:	72.1 KB
ID:	91704   Click image for larger version

Name:	DSCN2530.jpg
Views:	189
Size:	101.5 KB
ID:	91705   Click image for larger version

Name:	DSCN2531.jpg
Views:	199
Size:	118.6 KB
ID:	91706   Click image for larger version

Name:	DSCN2541.jpg
Views:	187
Size:	100.7 KB
ID:	91707   Click image for larger version

Name:	DSCN2543.jpg
Views:	219
Size:	103.8 KB
ID:	91708  

Stubble is offline  
Old 18th Apr 2014, 8:30 pm   #13
mark pirate
Dekatron
 
mark pirate's Avatar
 
Join Date: Mar 2008
Location: Worthing, West Sussex, UK
Posts: 4,822
Default Re: Is it a Bush TUG.68 ?

Be really careful when cleaning around the LOPT, it is all to easy to break the fine wires between the windings and tags.

Why Bush did not use their usual aluminium for both chassis is a mystery, I have never seen an RF chassis that is rust free!

The CRT should be fine, they seem to run forever, although I would be tempted to remove the LOPT and stick it in the airing cupboard for a few weeks, as it looks like your set was stored in very damp conditions for a long time.

Mark
mark pirate is offline  
Old 18th Apr 2014, 11:28 pm   #14
Lloyd 1985
Octode
 
Lloyd 1985's Avatar
 
Join Date: Jun 2008
Location: Coningsby, Lincolnshire, UK.
Posts: 1,722
Default Re: Is it a Bush TUG.68 ?

Looks a bit rusty!

I like the way the LOPT is mounted on these chassis, take off the 2 top caps to the PL and PY, remove 2 screws and the CRT anode cap and the whole thing comes out!

Lloyd.
Lloyd 1985 is offline  
Old 22nd Apr 2014, 1:19 pm   #15
jay_oldstuff
Octode
 
jay_oldstuff's Avatar
 
Join Date: Jan 2005
Location: Hyde, Greater Manchester, UK.
Posts: 1,074
Default Re: Is it a Bush TUG.68 ?

The chassis look no worse than the ones did in my TV62 that had an RF chassis just as rusty as yours and came back to life after recaping.

Jay
__________________
The light at the end of the tunnel is probably the headlight of an oncoming train
jay_oldstuff is offline  
Old 27th Apr 2014, 4:24 pm   #16
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Afternoon

Gone thought the resistors on the main deck today, total of 15 are way out of the stated tolerances 2 of which are O/C

21 waxies to change and possibly 7 electrolytic

The rubber wiring to the power socket has perished and requires replacing along with a new fixed mains cable.

Straightened out the tube socket, looks like it has been pushed up against a wall at some point, the contactís all bent and one resistor broken off.

But I have a bigger problem to sort first, measured the resistance readings across the transformers
Sound output is spot on along with the sync and frame output, the line/EHT transformer has a big problem

Continuity on the primary winding but non on the EHT winding, noting reaching the anode of the EY86 at all.

So it needs rewinding before I can go any further and achieve first light, suppose I can turn my attentions to the cabinet in the meanwhile.

Any recommendations for some one who can rewind the EHT unit for me or would any one have a spare one kicking around?
Lee
Attached Thumbnails
Click image for larger version

Name:	DSCN2595.jpg
Views:	173
Size:	95.1 KB
ID:	92065   Click image for larger version

Name:	DSCN2596.jpg
Views:	176
Size:	123.3 KB
ID:	92066   Click image for larger version

Name:	DSCN2594.jpg
Views:	153
Size:	120.0 KB
ID:	92067   Click image for larger version

Name:	DSCN2597.jpg
Views:	159
Size:	98.2 KB
ID:	92068   Click image for larger version

Name:	DSCN2598.jpg
Views:	197
Size:	87.1 KB
ID:	92069  

Stubble is offline  
Old 27th Apr 2014, 8:41 pm   #17
Heatercathodeshort
Dekatron
 
Heatercathodeshort's Avatar
 
Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 7,073
Default Re: Is it a Bush TUG.68 ?

Have a very close look at the start of the EHT overwind. This will be connected to the end of the primary winding, the top cap of the line output valve. You will probably discover that the very fine wire has rotted in the sleeving or has been damaged by cleaning. With care you can tin this fine wire and reconnect it with a short length of 5 amp fuse wire and new sleeving. It was a common fault in the 60's. Worth a look but be very carefull! John.
Heatercathodeshort is online now  
Old 27th Apr 2014, 9:40 pm   #18
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Evening John

Had another look with the magnifier glass, I can see both windings, one slightly thicker gauge wire both seem ok and attached to the tag.

Managed to photo both ends with the glass up to the camera lens.

Just a thought I could de-solder the tag and re-make all three connections, keep the top cap and primary winding on one side of the twin tag and re-sleeve the EHT winding separately and solder onto the other side of that tag, I have nothing to lose by trying.
Attached Thumbnails
Click image for larger version

Name:	DSCN2606.jpg
Views:	154
Size:	42.3 KB
ID:	92083   Click image for larger version

Name:	DSCN2608.jpg
Views:	155
Size:	56.3 KB
ID:	92084   Click image for larger version

Name:	DSCN2609.jpg
Views:	166
Size:	53.9 KB
ID:	92085   Click image for larger version

Name:	DSCN2612.jpg
Views:	154
Size:	47.0 KB
ID:	92086  
Stubble is offline  
Old 29th Apr 2014, 6:58 pm   #19
Heatercathodeshort
Dekatron
 
Heatercathodeshort's Avatar
 
Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 7,073
Default Re: Is it a Bush TUG.68 ?

You need to check the wires in the actual sleeving. The thinner one is where the problem will be. I have never had a TV50/60 LOPT winding go O/C. J.
Heatercathodeshort is online now  
Old 30th Apr 2014, 10:12 am   #20
Stubble
Pentode
 
Stubble's Avatar
 
Join Date: Nov 2011
Location: Powys, Wales, UK.
Posts: 189
Default Re: Is it a Bush TUG.68 ?

Good morning chaps

De-soldered the windings from the line output valve top cap tag and gently removed the pair of wires, both where intact within the sleeving. Re-sleeved and re-made the solder joint with the same results, continuity on the primary but nothing on the EHT over winding.

Lee
Photographs taken with the use of a light magnifier glass.
Attached Thumbnails
Click image for larger version

Name:	DSCN2613.jpg
Views:	129
Size:	57.6 KB
ID:	92203   Click image for larger version

Name:	DSCN2614.jpg
Views:	162
Size:	53.0 KB
ID:	92204  
Stubble is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 9:23 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright ©2002 - 2020, Paul Stenning.