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 Radio (domestic)

Notices

Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only.

Reply
 
Thread Tools
Old 19th Jul 2021, 11:58 am   #1
nightowl
Triode
 
Join Date: Dec 2019
Location: Lanarkshire, Scotland, UK.
Posts: 30
Default Lotus SG4 portable

We've just inherited one of the above, there's a few edges of the box covering that's perished over time (it's been in a garage for donkeys....). thought people might want to have a looksy.
If I ever got anyone to get it working again, are there modern versions of the batteries they use to use about?
Attached Thumbnails
Click image for larger version

Name:	P1100343.jpg
Views:	143
Size:	72.2 KB
ID:	237938   Click image for larger version

Name:	P1100344.jpg
Views:	109
Size:	110.2 KB
ID:	237939   Click image for larger version

Name:	P1100340.jpg
Views:	119
Size:	70.5 KB
ID:	237940   Click image for larger version

Name:	P1100342.jpg
Views:	120
Size:	97.3 KB
ID:	237941   Click image for larger version

Name:	P1100339.jpg
Views:	102
Size:	108.5 KB
ID:	237942  

nightowl is offline   Reply With Quote
Old 19th Jul 2021, 1:12 pm   #2
Cobaltblue
Moderator
 
Cobaltblue's Avatar
 
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
Posts: 5,127
Default Re: Lotus SG4 portable

Nice set.

Yes the 2V lead acid accumulator can be replaced by a Cyclon or similar.

https://batterygroup.co.uk/Batteries...battery-E-cell

The HT battery can be made up by series connecting a load of PP3's (you will probably need 15 or 16 assuming the HT is 120V and use a lower tap as necessary for the detector.

And the Grid Bias Battery can be made up from 6 series connected AAA batteries as you will need to select a suitable tap.

Make them up into suitable scanned cases and they will look the business

Cheers

Mike T
__________________
Don't care if it was a bargain why's it in my kitchen
Mike T BVWS member.
www.cossor.co.uk
Cobaltblue is online now   Reply With Quote
Old 19th Jul 2021, 8:44 pm   #3
nightowl
Triode
 
Join Date: Dec 2019
Location: Lanarkshire, Scotland, UK.
Posts: 30
Default Re: Lotus SG4 portable

thanks for that mike, I looked the lotus up last night, the battery looks like 1 big pin board like the telephone exchange women use to work, so that's 3 batteries inside the 1 case ?
attached some photos of the working parts of the old girl......
Attached Thumbnails
Click image for larger version

Name:	P1100329.jpg
Views:	112
Size:	135.3 KB
ID:	237969   Click image for larger version

Name:	P1100330.jpg
Views:	95
Size:	137.0 KB
ID:	237970   Click image for larger version

Name:	P1100334.jpg
Views:	99
Size:	97.7 KB
ID:	237971   Click image for larger version

Name:	P1100332.jpg
Views:	92
Size:	67.4 KB
ID:	237972  
nightowl is offline   Reply With Quote
Old 19th Jul 2021, 9:25 pm   #4
Cobaltblue
Moderator
 
Cobaltblue's Avatar
 
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
Posts: 5,127
Default Re: Lotus SG4 portable

I guess your looking at this picture you can see 3 Batteries

The Big one is the HT (in Red) these often had multiple taps making them suitable for many different sets and valve types.

The Blue one is the Grid Bias it looks as if this has two taps in use.

Lastly the green is the LT accumulator usually a Gel type in portable sets.

Cheers

Mike T
Attached Thumbnails
Click image for larger version

Name:	Lotus SG.JPG
Views:	117
Size:	104.7 KB
ID:	237976  
__________________
Don't care if it was a bargain why's it in my kitchen
Mike T BVWS member.
www.cossor.co.uk
Cobaltblue is online now   Reply With Quote
Old 19th Jul 2021, 9:45 pm   #5
nightowl
Triode
 
Join Date: Dec 2019
Location: Lanarkshire, Scotland, UK.
Posts: 30
Default Re: Lotus SG4 portable

aye that's the one(or 3)...... were Lotus top middle or bottom of the range equipment back in the day? When I first saw the case I thought it was going to be a gramaphone, but was quite surprised when it was opened.....
nightowl is offline   Reply With Quote
Old 22nd Jul 2021, 11:12 am   #6
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,069
Default Re: Lotus SG4 portable

Before you go any further, you need to check the continuity of the inter-valve transformer and speaker coil as these often fail in suitcase portables due to the battery fumes rotting the copper wire. For a price they can be rewound but it's best to know up front what you are getting into.
PJL is offline   Reply With Quote
Old 23rd Jul 2021, 11:11 am   #7
Gridiron
Hexode
 
Join Date: Apr 2010
Location: West Midlands, UK.
Posts: 421
Default Re: Lotus SG4 portable

The fixed resistors also may require checking and the blue painted Dubilier cap will probably be very leaky.
Gridiron is offline   Reply With Quote
Old 24th Jul 2021, 6:55 am   #8
nightowl
Triode
 
Join Date: Dec 2019
Location: Lanarkshire, Scotland, UK.
Posts: 30
Default Re: Lotus SG4 portable

tar muchly, yeah I will get a person that is old technology savy to give it a look over as I am a novices novice when it comes to W/T stuffs......I've not even looked at the speaker innards tbh.....the latches would they have been some sort of chrome or just silver painted (the drawings of them they look light coloured) ?
nightowl is offline   Reply With Quote
Old 24th Jul 2021, 9:09 am   #9
Herald1360
Dekatron
 
Herald1360's Avatar
 
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 15,587
Default Re: Lotus SG4 portable

Possibly nickel plated given its age. Unlikely to be just painted at any rate.
__________________
....__________
....|____||__|__\_____
.=.| _---\__|__|_---_|.
.........O..Chris....O
Herald1360 is online now   Reply With Quote
Old 24th Jul 2021, 9:21 pm   #10
nightowl
Triode
 
Join Date: Dec 2019
Location: Lanarkshire, Scotland, UK.
Posts: 30
Default Re: Lotus SG4 portable

What would be the best DIY way of returning the latches etc to their former glory?
nightowl is offline   Reply With Quote
Old 25th Jul 2021, 10:07 am   #11
Richardgr
Pentode
 
Join Date: Oct 2019
Location: Täby, Sweden
Posts: 203
Default Re: Lotus SG4 portable

I think you have to be careful not to destroy the 'patina' of this radio. It looks to be in an excellent state for its age, and could be devalued by overdoing the renovation.

It is worth thinking about your long term strategy, and seeing if there is a market for this one. Sometimes it is more fun to pick up wrecks, in the knowledge that one can learn without the responsibility of having something that is irreplaceable!
Richardgr is offline   Reply With Quote
Old 1st Aug 2021, 6:05 pm   #12
nightowl
Triode
 
Join Date: Dec 2019
Location: Lanarkshire, Scotland, UK.
Posts: 30
Default Re: Lotus SG4 portable

the clasps/hinges condition at the moment.
Attached Thumbnails
Click image for larger version

Name:	P1100356.jpg
Views:	25
Size:	121.8 KB
ID:	238636   Click image for larger version

Name:	P1100357.jpg
Views:	26
Size:	126.4 KB
ID:	238637   Click image for larger version

Name:	P1100358.jpg
Views:	22
Size:	84.1 KB
ID:	238638  
nightowl is offline   Reply With Quote
Old 1st Aug 2021, 7:38 pm   #13
Paul_RK
Dekatron
 
Paul_RK's Avatar
 
Join Date: Nov 2003
Location: Fakenham, Norfolk, UK.
Posts: 3,279
Default Re: Lotus SG4 portable

Quote:
Originally Posted by nightowl View Post
... were Lotus top middle or bottom of the range equipment back in the day?
My little "Receiver Specifications and Prices" books are currently in hiding, but I'd say middle or just above from the sets I've seen. They were quite a small company and didn't go in for any very ambitious designs, but build quality was solid and they didn't generally skimp on cabinets and finish. Bear in mind that suitcase portables as a class of radios were mainly the preserve of the fairly well heeled. Few would have chosen one as their sole household set, even where mains electricity wasn't available: and period ads often show them in use out and about, at a time when there were only around a million cars in the UK. I suspect they've survived better than table or floor-standing models of the period on account of their being relatively easy to close up, put away in cupboard or attic and forget about.

Paul
Paul_RK is offline   Reply With Quote
Old 14th Aug 2021, 3:37 pm   #14
nightowl
Triode
 
Join Date: Dec 2019
Location: Lanarkshire, Scotland, UK.
Posts: 30
Default Re: Lotus SG4 portable

tar muchly Paul....
nightowl is offline   Reply With Quote
Reply

Thread Tools



All times are GMT. The time now is 10:45 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 - 2021, vBulletin Solutions, Inc.
Copyright ©2002 - 2021, Paul Stenning.