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

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Test Gear and Workshop Equipment

Notices

Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders.

Closed Thread
 
Thread Tools
Old 1st Sep 2020, 4:26 pm   #1
buggies
Heptode
 
buggies's Avatar
 
Join Date: Jan 2009
Location: West Lothian, UK.
Posts: 760
Default Specification or manual for Solartron CR561 75 Ohm attenuator (1950s)

Had this attenuator for decades and thought it was time to test it before passing it on.
I suspect it is only usable at audio frequencies.
The diecast alloy box has .1" thick walls and the thing weighs over 2lb.
Note the tin whiskers on two of the screening plates.
The resistors are all Painton type 93 - would also appreciate any spec on them.
Attached Thumbnails
Click image for larger version

Name:	cr561front.jpg
Views:	84
Size:	42.5 KB
ID:	214719   Click image for larger version

Name:	cr561int.jpg
Views:	99
Size:	108.1 KB
ID:	214720   Click image for larger version

Name:	cr561side.jpg
Views:	84
Size:	90.8 KB
ID:	214721  
__________________
George
buggies is offline  
Old 1st Sep 2020, 7:31 pm   #2
mark_in_manc
Octode
 
Join Date: Nov 2011
Location: Manchester, UK.
Posts: 1,872
Default Re: Specification or manual for Solartron CR561 75 Ohm attenuator (1950s)

I have three of those which look just the same, but they are labelled 'Attenuator 600 ohms AT201'. Mine have coax sockets in and out. Given where they came from, mine were used for AF work. More than 30 years ago.
mark_in_manc is offline  
Old 9th Sep 2020, 4:51 pm   #3
buggies
Heptode
 
buggies's Avatar
 
Join Date: Jan 2009
Location: West Lothian, UK.
Posts: 760
Default Re: Specification or manual for Solartron CR561 75 Ohm attenuator (1950s)

I have now located a manual for the attenuator(s) - photographed the four pages and attached for anyone else.
My model uses type Painton 93 resistors not type 73 in the parts list - no idea what the difference is so will ask in another post.
Incidentally the manual was located in a box in the loft...
Attached Files
File Type: pdf attens.pdf (3.90 MB, 56 views)
__________________
George
buggies is offline  
Old 9th Sep 2020, 5:32 pm   #4
AC/HL
Dekatron
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,637
Default Re: Specification or manual for Solartron CR561 75 Ohm attenuator (1950s)

Thread moved to Vintage Test Gear for archive.
AC/HL is offline  
Old 16th Sep 2020, 9:27 am   #5
WME_bill
Octode
 
Join Date: Oct 2007
Location: Exeter, Devon, UK.
Posts: 1,553
Default Re: Specification or manual for Solartron CR561 75 Ohm attenuator (1950s)

for buggies: AT201 - CR561 specification from 1960 attached. Thanks for posting manual. wme_bill
Attached Files
File Type: pdf AT201-CR561 attenuator -specification 1960.pdf (579.0 KB, 59 views)
WME_bill is offline  
Old 16th Sep 2020, 6:53 pm   #6
buggies
Heptode
 
buggies's Avatar
 
Join Date: Jan 2009
Location: West Lothian, UK.
Posts: 760
Default Re: Specification or manual for Solartron CR561 75 Ohm attenuator (1950s)

Thanks for that Bill.
The only catalogue I kept was the '73-'74 hardback (olive green) one which included too much other Schlumberger stuff for my liking.
__________________
George
buggies is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 1:29 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 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.