Thought I had dimensions and printable image, but that was a B135
It ought to be linked to here. http://www.blaukatz.com/tables/layer-ht ... batteries/
But I haven't added it yet.
Connector H, which is the larger valve B4 type plug & socket.
I have photos & images of 5508 and 5507, so I can easily make it up.
The later B141 possibly similar contents but half the LT capacity as the Vidor would be over 250mA LT and the B141 is 125mA balanced for 10mA HT. The B114 (also small connector) is for 250mA but only 67 or 69V HTIf I assume same layer cells and 2 x LT as the B114 that gives me approx size. Or possibly it's exactly half capacity of a B103? So possibly it's 104 x 140 x 80mm (half B103 size)?
What is approximate space?
I presume it is the large Valve B4 connector used by AD3, AD103, B136, B137 (Sky Queen, Model T, Model K, 1939 All dry, Sky Prince, Sky King), not the small 4pin used on Ever Ready B, B2, Sky Baronet, Sky Casket?
It could be almost same size as L5546 (later replaced by smaller L5550 = B148) as that is a compact 7.5V & 90V pack. The 5 x B cells would be replaced by parallel F or D cells.
B148, L5550 = 89 x 89 x70 mm
L5546 = 89 x 89 x 76 mm
So I can make up an L5546 with L5509 and 1.5V text replacing the L5546 and 7.5V text with a B4 connector cut out. 10 x PP3 and an Alkaline D cell will do for filling. (both HT and LT would last maybe 40 hours, original would likely have been 70 hours based on B126 Layer cell life at 10mA, so we can work out how many parallel F or D cells were needed. Two off F cells I think.)
You sure about the DL91? not a DAF91 or DF91?