bc-1000 radio set up help needed

[brian in denver]

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[brian in denver]

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[AntonioFucci]

This is my BC1000 psu avaiable
viewtopic.php?f=36&t=202101" onclick="window.open(this.href);return false;
Best 73
Antonio
_________________________________________________________________________________________________________
28° Infantry Regiment PAVIA - Mechanized Division "FOLGORE"
Instructor Corporal - Retired

WWII Military Radio Collector http://www.radiomilitari.com" onclick="window.open(this.href);return false;

1942 - Willys Radio Jeep MB #197241
equipped with SCR-284 BC-654
and M-209 encoder in perfect working condition
1942 - Bantam Trailer T3 #4581

[David B]

IF I only had - or had access to a 3D Printer....I could make ANYTHING for prototyping....thats the ticket!

David

[topfmine]

I don't think the problem with these sets is with getting them working as with the brilliant work of Antonio's PSU's he is offering (When i get my set re-wrinkled, which hopefully will be soon and put back together, i will buy one of these) its the actual the BA-70 battery box that collectors want to put them in and display. Originals seem very unlikely, if found, some can be holed through corrosion as well as extremely rare.
Again I am very surprised that someone hasn't already started knocking them out, after all they are only a tin box made exactly like a tin can with a small lip top and bottom with a small protruding circle on the top for the connection, hardly rocket science. Must be some guys out there who make tin cans for a living or guys who work in skilled specialist custom fabrication. Any one know how a tincan is madeee and the type of die used to form the rim.
The hardest part forming is the small lip or rim around the box. Although i am lucky to have an original BA-70 which i can copy from, i am trying to find a way of forming the edging with a combined lip inside the box so a top and bottom can fit onto each end which will support them. The raised top connector can simply be swaged into shape by using a shaped die, male and female which is bolted together to form the shape withe the lid sandwiched between, done this before when make Riegel 43 mine charges, quite simple but i am a bit flummoxed making this rim. Any idea's quite willing to share info and idea's, which is what a forum is all about, hopefully get the same in return with other things

[brian in denver]

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[brian in denver]

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[YLG80]

@brian if still interested.

I've 3 NOS BA-70 batteries (same Saft batteries as posted before).
Of course these "brand new batteries" are out of service after so many years (1983) .

I've cracked opened one battery casing.
My intent is to remove the packs from the casing and put a 12V lead acid battery (why not LiFePo4 ??) with an inverter inside.

The guts are really difficult to remove.
The casing need to be heat-up with a hot gun in order to melt the wax inside.
Then it's a matter of strongly shaking the box (a lot) until the battery packs are falling outside.

Here are the pictures:
Battery casing opened from the bottom side with a Proxxon/Dremel.

BA-70_opened.JPG (187.86 KiB) Viewed 452 times

Box empty

BA-70_empty.JPG (122.18 KiB) Viewed 452 times

Pack of batteries inside. 3 layers, the black one is the top pack (filaments) and the bottom one is the 90V HT.

ba-70_3_battery_layers_potted.JPG (181.25 KiB) Viewed 452 times

My intent is to place the BC-659 inverter, BA-300-A unit, together with a 12V volt battery.
The BA-300-A inverter is a solid state mod made in France for the French Army BC659 FR version.
It gives the correct voltages. There is only a relay and a voltage regulator for the filaments to add and that's it.

Here is a picture of the BA-300-A.

INVERTER_BA-300-A-for-BC659-FR.jpg (5.07 KiB) Viewed 452 times

That BC-659-FR inverter could even be powered directly from the 6V or 12V jeep battery.

Yves