Granada Television Brochure, 1970s
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Mishaps In The Trade
1971 Beovision 3200
1971 Bush CTV1120
Granada Television Brochure, 1970s
Long Gone UK TV Shops
Memories of a Derwent Field Service Engineer
PYE Australia Circa 1971
Radios-TV VRAT
Fabulous Fablon
Thorn TX10 Chassis
Crusty-TV Museum, Analogue TV Network
Philips N1500 Warning!
Rumbelows
Thorn EMI Advertising
Thorn’s Guide to Servicing a VCR
Ferguson 3V24 De-Robed
Want to tell us a story?
Video Circuits V15 – Tripler Tester
Thorn Chassis Guide
Remove Teletext Lines & VCR Problems
Ceefax (Teletext)
Suggestions
Website Refresh
Colour TV Brochures
1970s Lounge Recreation
CrustyTV Vintage Television Museum
Linda Lovelace Experience
Humbars on a Sony KV2702
1972 Ultra 6713
D|E|R Service “The Best”
The one that got away
Technical information
The Line Output Stage
The map
Tales of a newly qualified young engineer.
Tales of a Radio Rentals Van Boy
Sanyo SMD
Disastrous Company Rebranding
1969 Philips G22K511
Memories Of The TV Trade
Crazy house
Dirty TV screens
Dual Standard and Single Standard CTV’s
Radios-TV on YouTube
The Winter of 62/63
A domestic audio installation
1979 Ferguson Videostar Deluxe 3V16
Music centre modifications
Unusual record player modification
B&K 467 Adapters
Mishaps In The Trade
1971 Beovision 3200
1971 Bush CTV1120
6 Volt motor bike battery.
Hi, my 1957 BSA Bantam 175 uses a 6 volt lead/acid battery. This battery is knackerd and i was thinking about re-stuffing it with ni-cad cells. Any ideas about this method?? Malc
The motorbike will have a charging circuit to suit lead acid construction batteries.
A lot of modification will be required to use other battery types.
Motorbike batteries should not be that difficult to obtain.
You can still buy 6V Lead Acid bike batteries. Plenty of vendors, both regular and eBay.
Both the SLA 6V (more expensive anyway) and NiMH (you would want five) would be short lived. The voltage doesn't rise sharply on NiMH to switch to low trickle charge.
SLA rarely last long in a Motorbike as they get discharged too deep and charged too quickly.
Nicads are a nono for Vehicle charging systems without some modification, but there is a good range of SLA batteries on the market designed for vehicle use.
What is an SLA battery?
Sealed Lead Acid
http://www.battery-force.co.uk/category ... eries.html
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The "motive" SLA are usually only suitable for Electric motors and separate charger, not the charging in a Motor bike. They are different design to the SLA used in Burgler Alarms and Emergency lights etc.
There are actually 3 kinds of SLA, 2 x gel and 1 x mat and as best as I can figure both the Gel kind and Mat Kind originated in 1932 for portable valve radios! By 1937 all new design portables used sealed gel cells in a plastic case, but likely different Gel and Plastic to that used today.
My 1929 McMichael Suitcase has acid burns on inside of case as it used a conventional glass cased "Wet" type lead acid pretty much like one cell of a 1950s motorbike battery (which is 3 cells).
The "Wet" type cells are still best performance & life which is why they are still used for cars, trucks and road-bikes (Racing bikes may be more exotic on batteries).
Both 6V Bike and even 6V car batteries are still made and available.
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