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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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21st May 2019, 3:45 pm | #41 |
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Re: Battery case links and scans.
Isn't there an internet archive site somewhere? Perhaps it's there?
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21st May 2019, 4:23 pm | #42 |
Octode
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Re: Battery case links and scans.
There is, Graham; it's called The Wayback Machine. Sadly it's a bit hit and miss as to what works with it and what doesn't.
Here's an old-style PP3. I'm not claiming historical accuracy for any of my reproductions as I'm too young to have ever seen originals but they certainly looks more in keeping with vintage equipment than modern ones. |
21st May 2019, 4:48 pm | #43 |
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Re: Battery case links and scans.
Well done! It's here:-
https://web.archive.org/web/20180729...eriesframe.htm Appears to be incomplete. I haven't checked earlier snapshots.
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21st May 2019, 5:04 pm | #44 |
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Re: Battery case links and scans.
Maybe the site is on the Google archive.
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21st May 2019, 6:41 pm | #45 |
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Re: Battery case links and scans.
The now dead link I gave in Post 9 now seems to be http://www.radionostalgia.ca/lib/Ima...tery/Unsorted/
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21st May 2019, 9:40 pm | #46 | |
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Re: Battery case links and scans.
Quote:
Well done for finding it though.
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21st May 2019, 9:48 pm | #47 | |
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Re: Battery case links and scans.
Quote:
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22nd May 2019, 6:17 pm | #48 |
Octode
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Re: Battery case links and scans.
Old-style No8 and 1289.
I THINK the No8 is the correct size but don't have a battery to check it against to make certain. |
23rd May 2019, 7:58 am | #49 |
Octode
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Re: Battery case links and scans.
PP4 (later round version).
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23rd May 2019, 8:44 am | #50 |
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Re: Battery case links and scans.
The PP4 scan is very interesting, thanks for posting it. The problem for anyone trying to replicate such a cell must be to achieve a realistic mAh capacity in a cylindrical shape. PP4s were originally presumably of layer construction using circular rather than rectangular disc cells. Perhaps circular DEAC cells could be used.
Has anyone actually managed successfully to construct a replica PP4? I have a piece of test gear that took three of them.
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23rd May 2019, 9:26 am | #51 |
Octode
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Re: Battery case links and scans.
The Small Battery Company sells new PP4s, but make sure you're sat down before looking at the price.
As for making one I suppose it depends on how much current the host device needs. Three lots of lithium buttons in parallel would be my starting point. Poundland's solar garden lights have tiny 40mAh rechargeable cells so seven of those would give 8.4V. |
23rd May 2019, 10:09 am | #52 |
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Re: Battery case links and scans.
Pity, they state the price but conveniently forget to mention the mAh capacity! At the risk of going off topic, I’d guess that three parallel groups of three CR2025s in series would give about 450mAh, more if CR2032s would fit into the available space. Still, the price is perhaps understandable if good quality cells are being fitted. A high price to pay for originality though!
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23rd May 2019, 11:58 am | #53 |
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Re: Battery case links and scans.
I just cut the can off a new PP3 and used the snaps from a PP9 that had been used up in a TR82.
It worked for me. |
12th Jun 2019, 12:11 pm | #54 |
Pentode
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Location: Coventry, West Midlands, UK.
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Re: Battery case links and scans.
Ever Ready AD28
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12th Jul 2019, 2:20 pm | #55 |
Octode
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Re: Battery case links and scans.
B103. It's in several parts as it's far too big to print on a single sheet of A4 paper.
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25th Jul 2019, 12:44 pm | #56 |
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Re: Battery case links and scans.
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25th Jul 2019, 1:12 pm | #57 |
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Re: Battery case links and scans.
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31st Jul 2019, 1:15 pm | #58 |
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Re: Old HT and LT batteries, what to keep?
For reference I have attached scans of the (unfolded) cardboard casings of the 2 batteries. I assume they are well-know versions and that it is not worth trying to clean up the scans as they are already on the web.
I'll keep the cardboard at least for the moment though. |
31st Jul 2019, 4:43 pm | #60 |
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Re: Battery case links and scans.
That's the same AD35 version as the one I have, but I think my B126 is a newer type. But it's also the one I remember getting many years ago and I am sure somebody has already scanned it (one in rather better condition than mine).
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