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31st May 2009, 6:11 pm | #1 |
Retired Dormant Member
Join Date: Sep 2008
Location: Redditch, Worcs, UK
Posts: 66
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"Pertrix" grid bias battery label scans
Gents,
For those of you who might be wishing to re-label something resembling a grid bias battery in an old set, please find the scans attached! Note that these are very much reduced in size; if you'd like the original scans, which are at 600dpi resolution, PM me and I'll send them through. Cheers Andy |
31st May 2009, 9:33 pm | #2 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,288
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Re: "Pertrix" grid bias battery label scans
Very nice. Is it 9V only or are there taps? What are the dimensions?
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
2nd Jun 2009, 7:23 pm | #3 |
Retired Dormant Member
Join Date: Sep 2008
Location: Redditch, Worcs, UK
Posts: 66
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Re: "Pertrix" grid bias battery label scans
There were several taps on the original battery, can't quite remember them all (the battery was disposed of; it was a leaky mess!) but think there might have been taps for 1.5, 3, 4.5, 7 and 9v.
Dimensions were approx 12cm wide by 7cm tall, and about 1.5 cm thick. I found it when I took the back off a very early valve set (pic attached) that I recovered from a manor house in Lincs, about 20 years ago! |
2nd Jun 2009, 10:09 pm | #4 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: "Pertrix" grid bias battery label scans
Not likely to be a 7 volt tap . 6 & 7.5 would be possible, though.
Chris |