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.

Reply
 
Thread Tools
Old 4th Nov 2023, 12:25 am   #1
kellys_eye
Octode
 
Join Date: Jan 2014
Location: Oban, Scotland, UK.
Posts: 1,129
Default Mystery test set

Can anyone identify this unit and offer any history or advice on it?
Attached Thumbnails
Click image for larger version

Name:	Untitled.jpg
Views:	284
Size:	49.3 KB
ID:	287346   Click image for larger version

Name:	Untitled2.jpg
Views:	193
Size:	74.0 KB
ID:	287347  
kellys_eye is offline   Reply With Quote
Old 4th Nov 2023, 8:08 am   #2
CambridgeWorks
Nonode
 
CambridgeWorks's Avatar
 
Join Date: Jun 2010
Location: Spalding, Peterborough, Cambridgeshire, UK.
Posts: 2,859
Default Re: Mystery test set

Looks like a modified original of something or home made. Maybe has 2 band rf sig gen, audio osc out, audio monitor for headphones and a multi range dc voltmeter.
A picture of top and bottom of chassis would help.
Rob
__________________
Apprehension creeping like a tube train up your spine - Cymbaline. Film More soundtrack - Pink Floyd
CambridgeWorks is offline   Reply With Quote
Old 4th Nov 2023, 9:15 am   #3
Craig Sawyers
Dekatron
 
Craig Sawyers's Avatar
 
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 4,993
Default Re: Mystery test set

Looks like white Letraset, not well aligned with the controls. Which suggests homebrew.

Craig
__________________
Doomed for a certain term to walk the night
Craig Sawyers is online now   Reply With Quote
Old 4th Nov 2023, 9:21 am   #4
Radio Wrangler
Moderator
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,901
Default Re: Mystery test set

Belling-Lee connectors suggest 1950s or 60s

David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is online now   Reply With Quote
Old 4th Nov 2023, 4:05 pm   #5
factory
Octode
 
Join Date: Jul 2009
Location: Cheshire, UK.
Posts: 1,739
Default Re: Mystery test set

Homemade from magazine designs of the 1960s? Anything inside to give clues?

David
factory is online now   Reply With Quote
Old 5th Nov 2023, 1:31 am   #6
kellys_eye
Octode
 
Join Date: Jan 2014
Location: Oban, Scotland, UK.
Posts: 1,129
Default Re: Mystery test set

Top and bottom. I thought homebrew too but starting to think it may have been made semi-pro by a 'name' as a one off. The construction standard is rather impressive - letraset notwithstandiing!
Attached Thumbnails
Click image for larger version

Name:	top.jpg
Views:	131
Size:	83.5 KB
ID:	287373   Click image for larger version

Name:	bottom.jpg
Views:	134
Size:	115.5 KB
ID:	287374  
kellys_eye is offline   Reply With Quote
Old 5th Nov 2023, 9:09 am   #7
stuarth
Heptode
 
Join Date: Feb 2010
Location: Heysham, Lancashire, UK.
Posts: 669
Default Re: Mystery test set

It looks like 3 circuits.

The left hand bit looks like a 2 band signal generator.

The right hand bit looks like a valve voltmeter (coax input with one side connected to chassis rather than floating, and a set zero control on the front - and there’s a valve in there!)

The middle bit looks like 2 valves and an output transformer, which would match the “signal tracer” label on the front.

It is beautifully made. Somewhere with good metal bashing facilities, but no panel lettering facilities.

Stuart
stuarth is offline   Reply With Quote
Old 5th Nov 2023, 9:58 am   #8
CambridgeWorks
Nonode
 
CambridgeWorks's Avatar
 
Join Date: Jun 2010
Location: Spalding, Peterborough, Cambridgeshire, UK.
Posts: 2,859
Default Re: Mystery test set

I would think home made. Those red resistors have paxolin tagstrip at rear and looks like ceramic in middle. Some wiring very neat, some not so and different size. Bit jumbled up around a valve base as well. Also the brown cable just loosely entering at rear, no hole with a grommet. Lastly, where is the psu? That tiny transformer looks like o/p type and who would use a bathtub capacitor (rear corner) when this was made? Probably from the 60s or 70s even from a well stocked junkbox assortment.
Rob
__________________
Apprehension creeping like a tube train up your spine - Cymbaline. Film More soundtrack - Pink Floyd
CambridgeWorks is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 5:08 pm.


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.