Taylor (Windsor) 45B Valve tester info needed. - UK Vintage Radio Repair and Restoration Discussion Forum

Uptown1 · 27th Aug 2011, 8:27 pm

Greetings to all.
I'm a new member here, a fellow member on another forum suggested that I might want to join in on this forum and post questions about this particular tester here. So here I am.
I have acquired this interesting valve tester and have been unsuccessful in acquiring a manual, schematic and valve data for setting up this tester.
It seems to be working as it should based on the limited information I have but really won't know for sure until I am in possession of these documents. It seems that this Taylor 45B valve tester is quite popular here, based on what I have read in the archives.
Any help would be greatly appreciated.
Thank you,
Mauro

Cobaltblue · 27th Aug 2011, 9:19 pm

Hi Mauro
I scanned in the instructions and cct a while ago.
I can email it to you if you send me an Email address via PM

Enjoy

Mike T

Uptown1 · 28th Aug 2011, 2:18 am

Thanks!
PM sent.

Cobaltblue · 28th Aug 2011, 11:40 am

I decided to upload the Windsor/Taylor 45B instructions to Picasa Web so its available to anyone.

I am not too familiar with Picasa as yet so please forgive me if I

it up!

The Handbook fingers crossed should be here
Enjoy

Mike T

Uptown1 · 29th Aug 2011, 2:32 am

This is great information and much appreciated!

Still in need of valve set up information.
I noticed there is someone else looking for it on another thread.
Would the settings from the 45C be the same?
I do have those.
Thanks again,
Mauro

Cobaltblue · 29th Aug 2011, 11:27 am

Hi Mauro
I would guess that the 45C would be similar but can't say for sure as I dont have access to one. It's a Bank holiday here in UK at the moment so I wont return to Poole where the the Valve data book is until tomorrow. I won't be able to scan all the pages on Tuesday but I could scan pages with a few popular types such as 6V6. It would probably be the weekend before I could scan all the pages. Hope that help.
Enjoy

Mike T

igranic · 29th Aug 2011, 9:06 pm

Mauro,

The 45C is very similar apart from the number of positions on the ABC switches which select the correct connections for the valve under test. The 45B has 10 positions ( 0 - 9) on each switch, whereas the 45c has 18 positions (0 - 17).

When compared the the 45c, the 45b is limited in the number of distinct valve pin configurations that can be tested. Later versions of the 45c have the capability of testing the vast majority of radio and TV valves, with the possible exception of high powered examples, some very late introductions, and B9D (Magnoval) types.

The 45c manual also has the settings for the 45A and 45b. But settings annotated with the number '12' enclosed within a circle will only work on the 45C.

Early versions of the 45B were later updated by adding some additional wiring to the ABC switches to allow testing of valves that were not included in the early Valve Settings manual. It is worth checking that all the switch positions (with the exception of '0') are populated according to the wiring chart on page 4 of your manual. With the exception of the Screen(g2) connection, this can be done with a (power off) continuity check between the red, green, and black sockets and their respectively connected pins on the B9A socket.

This, in any case, is a worthwhile exercise so as to ensure that all the switch contacts are in working order. 45B's (and 45c's) often had a hard life in service departments, and the contacts frequently seem to have suffered wear or damage. On my own 45C I have have added a yellow socket for the screen(g2) circuit so that it too can be continuity tested through to the valve socket for each switch position. It also serves as a useful voltage monitoring point, but bear in mind that the voltages on the screen and anode circuits are AC, whilst the grid circuit is antiphase half-wave DC.

HTH
Edward

Cobaltblue · 29th Aug 2011, 9:22 pm

Hi Edward Thanks for the very detailed description of the differences between the 45B and the 45C. Thats very useful
I know that the switches are populated as per the handbook in my case as I had to some fault finding a few years ago.
The Meter button on mine keeps sticking as its damaged but its only a backup so its on the round2it list!
Have fun

Mike T

Cobaltblue · 30th Aug 2011, 5:59 pm

Hi Mauro
The first part of the 45B valve chart has been downloaded to Picasa
You can view and download the images here
To ensure this post has meaning in case my Picasa goes

up (not impossible technology hates us all!)there are thumbnails loaded. If you recheck the link later in the week I will add more pages.
I have no idea why its so wonky. I guess its me not the very expensive scanner!
Enjoy

Mike T

Cobaltblue · 31st Aug 2011, 11:35 am

Hi All apologies the link above doesnt contain the Autorisation key

.
My fault I am still getting used to Picasa

.

This Link does contain the key so Should work!
Enjoy

Mike T

Uptown1 · 3rd Sep 2011, 2:25 am

Thank you to all who contributed.
Now, armed with all this information I will evaluate my new (well, recent) tester. I appreciate all the extra info.
Have a great weekend!
Mauro

Station X · 3rd Sep 2011, 8:54 am

I have a pdf version of the valve chart, but it's nearly 6M. Anyone wanting a copy, PM me your email address.

greenstar · 15th Oct 2013, 12:13 pm

Hi, I was the happy winner of a 45B at the last Harpenden auction, and am attempting to use it. As it was sold as working I took a chance and powered it up, and it does seem to be behaving on all tests. Assuming all is ok, I still have some confusion about operation. I have the original valve info book, and have downloaded a 45B instruction book. I am practicing on a batch of pulled EF80's of dubious origin, and trying to be kind.

When checking element shorts the book says 'with a few valves spurious results have been obtained. Such as those having heater centre taps or internal connectiions on pins which would otherwise be blank''. I've tested three or four EF80's, which all show shorts with the 'B' switch on 2 and 5. Otherwise they appear fine, if possibly with low mu. How do I know which valves will give spurious results? Could these damage the tester? I attach a valve connection diagram, which is no help so far as i can see.

Also, the meter shows 'replace' and 'good' zones. What does this relate to? My EF80's have a mutual conductance stated as 5.5, which is within the red! What am I missing?
Tony

greenstar · 20th Oct 2013, 8:32 am

OK, to attempt to answer my own questions, earlier in the manual I should have read that the red and green zones relate only to rectifier and diode testing.
As all of 15 EF80's show the same shorts, it's probably clear these relate to the filament, it must do as nothing is dialled in for the specific valve for this test.
But this isn't made clear in the manual, where as quoted above, 'spurious result's are said to be exceptions.
If filaments come up on the shorts test, one would expect two shorts on each valve type - can anyone confirm that this is the case?

27th Aug 2011, 8:27 pm	#1
Uptown1 Retired Dormant Member Join Date: Aug 2011 Location: Mississauga, Canada Posts: 6	Taylor (Windsor) 45B Valve tester info needed. Greetings to all. I'm a new member here, a fellow member on another forum suggested that I might want to join in on this forum and post questions about this particular tester here. So here I am. I have acquired this interesting valve tester and have been unsuccessful in acquiring a manual, schematic and valve data for setting up this tester. It seems to be working as it should based on the limited information I have but really won't know for sure until I am in possession of these documents. It seems that this Taylor 45B valve tester is quite popular here, based on what I have read in the archives. Any help would be greatly appreciated. Thank you, Mauro Last edited by paulsherwin; 27th Aug 2011 at 8:49 pm. Reason: Email address removed to comply with forum rules

27th Aug 2011, 9:19 pm	#2
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,879	Re: Taylor (Windsor) 45B Valve tester info needed. Hi Mauro I scanned in the instructions and cct a while ago. I can email it to you if you send me an Email address via PM Enjoy Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

28th Aug 2011, 2:18 am	#3
Uptown1 Retired Dormant Member Join Date: Aug 2011 Location: Mississauga, Canada Posts: 6	Re: Taylor (Windsor) 45B Valve tester info needed. Thanks! PM sent.

28th Aug 2011, 11:40 am	#4
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,879	Re: Taylor (Windsor) 45B Valve tester info needed. I decided to upload the Windsor/Taylor 45B instructions to Picasa Web so its available to anyone. I am not too familiar with Picasa as yet so please forgive me if I it up! The Handbook fingers crossed should be here Enjoy Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

29th Aug 2011, 2:32 am	#5
Uptown1 Retired Dormant Member Join Date: Aug 2011 Location: Mississauga, Canada Posts: 6	Re: Taylor (Windsor) 45B Valve tester info needed. This is great information and much appreciated! Still in need of valve set up information. I noticed there is someone else looking for it on another thread. Would the settings from the 45C be the same? I do have those. Thanks again, Mauro

29th Aug 2011, 11:27 am	#6
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,879	Re: Taylor (Windsor) 45B Valve tester info needed. Hi Mauro I would guess that the 45C would be similar but can't say for sure as I dont have access to one. It's a Bank holiday here in UK at the moment so I wont return to Poole where the the Valve data book is until tomorrow. I won't be able to scan all the pages on Tuesday but I could scan pages with a few popular types such as 6V6. It would probably be the weekend before I could scan all the pages. Hope that help. Enjoy Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

29th Aug 2011, 9:06 pm	#7
igranic Rest in Peace Join Date: Jan 2005 Location: North Bedfordshire, UK. Posts: 395	Re: Taylor (Windsor) 45B Valve tester info needed. Mauro, The 45C is very similar apart from the number of positions on the ABC switches which select the correct connections for the valve under test. The 45B has 10 positions ( 0 - 9) on each switch, whereas the 45c has 18 positions (0 - 17). When compared the the 45c, the 45b is limited in the number of distinct valve pin configurations that can be tested. Later versions of the 45c have the capability of testing the vast majority of radio and TV valves, with the possible exception of high powered examples, some very late introductions, and B9D (Magnoval) types. The 45c manual also has the settings for the 45A and 45b. But settings annotated with the number '12' enclosed within a circle will only work on the 45C. Early versions of the 45B were later updated by adding some additional wiring to the ABC switches to allow testing of valves that were not included in the early Valve Settings manual. It is worth checking that all the switch positions (with the exception of '0') are populated according to the wiring chart on page 4 of your manual. With the exception of the Screen(g2) connection, this can be done with a (power off) continuity check between the red, green, and black sockets and their respectively connected pins on the B9A socket. This, in any case, is a worthwhile exercise so as to ensure that all the switch contacts are in working order. 45B's (and 45c's) often had a hard life in service departments, and the contacts frequently seem to have suffered wear or damage. On my own 45C I have have added a yellow socket for the screen(g2) circuit so that it too can be continuity tested through to the valve socket for each switch position. It also serves as a useful voltage monitoring point, but bear in mind that the voltages on the screen and anode circuits are AC, whilst the grid circuit is antiphase half-wave DC. HTH Edward

29th Aug 2011, 9:22 pm	#8
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,879	Re: Taylor (Windsor) 45B Valve tester info needed. Hi Edward Thanks for the very detailed description of the differences between the 45B and the 45C. Thats very useful I know that the switches are populated as per the handbook in my case as I had to some fault finding a few years ago. The Meter button on mine keeps sticking as its damaged but its only a backup so its on the round2it list! Have fun Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

30th Aug 2011, 5:59 pm	#9
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,879	Re: Taylor (Windsor) 45B Valve tester info needed. Hi Mauro The first part of the 45B valve chart has been downloaded to Picasa You can view and download the images here To ensure this post has meaning in case my Picasa goes up (not impossible technology hates us all!)there are thumbnails loaded. If you recheck the link later in the week I will add more pages. I have no idea why its so wonky. I guess its me not the very expensive scanner! Enjoy Mike T Attached Thumbnails __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

31st Aug 2011, 11:35 am	#10
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,879	Re: Taylor (Windsor) 45B Valve tester info needed. Hi All apologies the link above doesnt contain the Autorisation key . My fault I am still getting used to Picasa . This Link does contain the key so Should work! Enjoy Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

3rd Sep 2011, 2:25 am	#11
Uptown1 Retired Dormant Member Join Date: Aug 2011 Location: Mississauga, Canada Posts: 6	Re: Taylor (Windsor) 45B Valve tester info needed. Thank you to all who contributed. Now, armed with all this information I will evaluate my new (well, recent) tester. I appreciate all the extra info. Have a great weekend! Mauro

3rd Sep 2011, 8:54 am	#12
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: Taylor (Windsor) 45B Valve tester info needed. I have a pdf version of the valve chart, but it's nearly 6M. Anyone wanting a copy, PM me your email address. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

15th Oct 2013, 12:13 pm	#13
greenstar Octode Join Date: Jul 2011 Location: Leicester, Leics. UK. Posts: 1,685	Re: Taylor (Windsor) 45B Valve tester info needed. Hi, I was the happy winner of a 45B at the last Harpenden auction, and am attempting to use it. As it was sold as working I took a chance and powered it up, and it does seem to be behaving on all tests. Assuming all is ok, I still have some confusion about operation. I have the original valve info book, and have downloaded a 45B instruction book. I am practicing on a batch of pulled EF80's of dubious origin, and trying to be kind. When checking element shorts the book says 'with a few valves spurious results have been obtained. Such as those having heater centre taps or internal connectiions on pins which would otherwise be blank''. I've tested three or four EF80's, which all show shorts with the 'B' switch on 2 and 5. Otherwise they appear fine, if possibly with low mu. How do I know which valves will give spurious results? Could these damage the tester? I attach a valve connection diagram, which is no help so far as i can see. Also, the meter shows 'replace' and 'good' zones. What does this relate to? My EF80's have a mutual conductance stated as 5.5, which is within the red! What am I missing? Tony Attached Thumbnails

20th Oct 2013, 8:32 am	#14
greenstar Octode Join Date: Jul 2011 Location: Leicester, Leics. UK. Posts: 1,685	Re: Taylor (Windsor) 45B Valve tester info needed. OK, to attempt to answer my own questions, earlier in the manual I should have read that the red and green zones relate only to rectifier and diode testing. As all of 15 EF80's show the same shorts, it's probably clear these relate to the filament, it must do as nothing is dialled in for the specific valve for this test. But this isn't made clear in the manual, where as quoted above, 'spurious result's are said to be exceptions. If filaments come up on the shorts test, one would expect two shorts on each valve type - can anyone confirm that this is the case?