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AD34 or L5050 battery

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AD34 or L5050 battery

Post by Michael Watterson » Tue Feb 26, 2013 9:30 pm

What is known:
For Riviera CN379 / CN380 / CN392
Uses the regular 1.5V plug, but vertically on middle of tall side

Equivalents
AD34 L5050 1533 H1183 K778

An AD32 or AD4 is much less capacity although same connector.

Depending on catalogue used:
W = 68 to 70 mm
H = 135 to 140 mm
D = 81 to 83 mm

Definitely contained 8 Cells according to R&TVS. But seems too tight for 8 x F cells. Loads of space for 8 x D cells. So I'd go with smaller size especially as my "dummy" box 135mm high is a snug fit for height in a CN379 where it sits beside speaker and behind the Portable 61.

6 x D cells in a holder (but PARALLEL) will be lower capacity approx if Zinc Carbon and higher if Alkaline. 6 x D cells will match 60 x AA cells of same type for 250mA LT and 10mA HT approx.

Anyone seen a PHOTO etc of either AD34 or L5050 battery ?

 

Re: AD34 or L5050 battery

Post by Mike C » Tue Feb 26, 2013 9:49 pm

I have heard of the size so I am thinking its a LT battery but sadly no picture of one, sadly I only have the Ever Ready book from 1948 but the rest I have are from the early 80s to 90s and its not in there so this battery must have been made in the 60s. Nothing on Google either. I did spot a one on Ebay back in 2007 but got outbid, Bill aka batterymaker may be able to help.

 
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Re: AD34 or L5050 battery

Post by Michael Watterson » Tue Feb 26, 2013 10:12 pm

I have the size and can "guess" at the appearance. It was released between summer 1939 and at the latest 1946 I don't think any model after 1948 used it. It was 1.5V LT as companion to a "Portable 61" / L5039 / H1164. Earlier 2V Battery Portables (using sealed Gel Lead Acid LT) used the "Portable 61" possibly from 1936 or 1937. Sylvania developed the 1.5V (really 1.4V) Octal valves in 1938 which appeared in UK in 8 pin Edge connect and Mazda Octal in 1939 before WWII. RCA B7G late 1939/1940 but not in UK sets till 1947 really.

Ever Ready AD3 Combo is sort of the "combo" equivalent to Portable 61 + AD34/L5050, (both 60 x "U10" for the 90V) but the B103 made the AD3 obsolete. Amazingly the Regatta 420 and later 420A used the Portable 61 (L5039) up to late 1950s. The 420A was I think still made in 1957.

So "Portable 61" / (L5039) may have been used in PRODUCTION Radios for 90V HT over 20 years.

P.S. Always save the eBay photos.
Last edited by Michael Watterson on Tue Feb 26, 2013 10:26 pm, edited 2 times in total.

 

Re: AD34 or L5050 battery

Post by Mike C » Tue Feb 26, 2013 10:25 pm

My book is listing a lot of accumulator sizes for LT, I could be wrong but I think from memory this AD34 is longer than the AD35 but has the same socket as the latter. Portable 61 HT is mentioned but not AD34. Sadly I don't have anything for Vidor though.

 
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Re: AD34 or L5050 battery

Post by Michael Watterson » Tue Feb 26, 2013 10:38 pm

The AD35 is a shrimp compared to AD34

AD34 is definitely Ever Ready version of L5050, and it's almost the size of 2 x 996 lantern packs. But not quite F cell is 87.2 mm x 31.8 mm naked.

This is 135 mm tall and about 68 mm x 81mm (or maybe 70 x 83). The height is 100% from measuring the real radio. I find a lot of dimensions are "rounded up" to nearest 1/8th or 1/4" by people or catalogues and then batteries are too tight!

So 8 x F cells don't fit. But tantalisingly they nearly do. Why so much extra space for 8 x D cells? It was 8 cells according to R&TVS.

Or was there an old cell before 1946 between length of D cell (U2) and F cell (used in 996 and 2 off in the torch battery with strip on top and front) ?

 

Re: AD34 or L5050 battery

Post by Mike C » Tue Feb 26, 2013 11:04 pm

The only one I can think of is the No800 bike lamp cell. I know Bill has many Ever Ready books and possibly Vidor to. Its getting a scan of one of these AD34s is going to be a challenge. D cells might be the way to go.

There were some strange cells bigger than a U10 but smaller than F size and they were inside a police lamp battery size 295, this battery is the 1289s bigger brother. I don't know the size though but was there an E size. Could this be what is inside an AD34?
Attachments
164518_1620395864541_7385800_n copy.jpg

 
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Re: AD34 or L5050 battery

Post by Michael Watterson » Tue Feb 26, 2013 11:59 pm

Maybe they just used D cells (U2) Vidor claim it was designed for the Riviera, (The AD34 is Ever Ready copy of Vidor L5050) and they bulked out the 8 x U2/D cells to fit snugly. The wider 90 mm needed using F cells won't fit.

The 800 is 2 x F cells. Exactly 1/2 a 996 lantern.

Photos of progress shortly ...

I'm actually only going to use 6 x D cells even though 8 would fit easily, because 8 is too many if only using Zinc Carbon AA cells for the 90V HT. 8 x Zinc Carbon "D" (U2) is actually about right capacity if you had 60 x B cells (technically possible by ripping open 20 off 1289 cells, but while "uber" authentic to make an AD3 or "Portable 61" very expensive compared to cheap AA cells.)

Your police lamp battery size 295 is very interesting!

Can you measure length to cap and diameter of a cell and I might be able to say what it is?

 
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Re: AD34 or L5050 battery

Post by Michael Watterson » Wed Feb 27, 2013 12:08 am

There is indeed an E
L = 73.0 mm
dia = 31.8 mm

Between length of D/ U2 (L = 57.2mm) and F (L= 87.3 mm)
All are 31.8 mm on bare case without card sleeve.

There is a G too (L = 101.6 mm) same diameter

As you probably know
A, B, AA, AAA, AAAA, C, D, E , F, G are US designations long after the batteries in use.

I'm not sure if these related letters are from the same USA standards body.
J CD CL BR BF R P N NS
CD is variation of C
BR, BF are variations of B

I have no idea what used an A

2 x U8 in a No.8 Bijou? I don't know any USA Letter for U8

 
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Re: AD34 or L5050 battery

Post by Michael Watterson » Wed Feb 27, 2013 1:04 am

Here is the start..

I have started to make two versions of the L5050/AD34, But will only do the connector and printed surface for one

comparison.jpg


Base of box. You can see that it can take 8 cells the diameter of D, E or F, but F are too tall (contents of the AD4)

Compare box made of cut down Oatcakes (works for several batteries, just trim off different depths) and two part box (chocolate box style) made from cereal packet
AD34_box1.jpg


make a "Portable 61" out of Pizza box. AD3, B103, B136, B135, B137 etc all need corrugated or stronger card and bigger sheets than most cereal packets.
P61_top_glue.jpg


You can easily fit 8 x 8 way or 6 x 10 way AA holders ...
P61_base.jpg


Fitting the AD34 / L5050 in the Radio, taller than 135mm will not fit, there is a metal lip and wooden block to position the battery

L5050_loc_a.jpg

or
L5050_loc.jpg


The purple arrow shows where the two pin socket is. Centre of side, the two holes vertical.

Finally add the HT, the "Portable 61"/L5039

P61_loc.jpg


It uses two "wander plugs" on the two sides. I do have scan of an Ever Ready one and photos of Exide, Ever Ready and Vidor versions at least. So I can make a set of Vidor Inkjet printouts to stick on Pizza box.

Oatcake and Pizza powered Radio?

I need to make a 2nd "Portable 61" and another AD4 for my Vidor CN420A (Regatta?). The AD4 in the photo is for my Mullard D11. Another AD4 is in the Vidor Vanguard. They are made with real F cells as "Dunnes" was selling PJ99 for only €3.50

Note the battery holder in Photo for D Cells isn't useful as it's series. I will make a 6 way parallel holder. I have a load of 996 springs :)

 
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Re: AD34 or L5050 battery

Post by Michael Watterson » Wed Feb 27, 2013 10:35 pm

The AD34 / L5050 seems fairly similar shape and connector position to the AD32, both have 8 cells. But the R&TVS quotes the AD34 / L5050 as 150mA to 300mA loads and AD32 as 100mA to 250mA loads.

The Vidor CN379 has a diagram showing location of battery and location of plug:
cn379_battery_layout.png


I have no photo though

L5050_comp.jpg

L-R AD4, Vidor 7.5V for CN421/CN427 and the L5050 for Riviera CN379 and others.

This appearance is fantasy. It's all Vidor actual text/logos/styles from other batteries. Size is correct (fits radio and matches some catalogues) and location of the connector matches similar AD32 and the diagram in the Radio.

The L5050, according to Vidor "is developed for this Model", however they mean the Riviera 1940s series, not the CN379. (CN351 of 1945 seems to be the first).

So I'm confident on size etc, but layout is my own imagination till someone finds a photo or catalogue illustration.

I don't actually have Ever Ready or Vidor photo of the similar (smaller) AD32, but I did find an edited Exide scan.

 

Re: AD34 or L5050 battery

Post by Mike C » Thu Feb 28, 2013 9:46 pm

I sadly ditched these cells a while ago before I became a member on here, my guess is there E cells as there shorter than the large F size you get in those lantern cells.


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