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cheap 90 volt supply for valve portables

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Anonymous
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very simple 90 volt supply
16 4LR44 batteries £4.75 for 20 from ebay
2 AA 4x batterie holders
2 x PP3 snap connectors
1" 4mm brass tubing(to make the connectors to fit radio plug)
heat shrink to isolate brass tube
rob t

 
Posted : 16/10/2011 7:03 pm
Anonymous
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That's nice and straightforward Rob.

I did try to follow Mike's thread a bit back which I think was trying to achieve the same ends, but I'm afraid I got rather lost in the theory :D .

Keith

 
Posted : 16/10/2011 8:02 pm
Anonymous
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Nice to know I wasn't the only one, Keith! :wft?:

When my ten PP3s to expire I will try his 30 CR2032 cell idea. In the meantime I'm hoping to find some suitable plastic tubes. If I can't it'll be 1" heat-shrink.

- Joe

 
Posted : 16/10/2011 8:12 pm
Anonymous
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sorry i got cost wrong £5.78 for 20 free p+p

http://www.ebay.co.uk/itm/150618799516? ... 1497.l2649

 
Posted : 16/10/2011 8:37 pm
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