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Russian R-105 Radio
Old 02-23-2009, 07:52 PM   #1
FJ George
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Default Russian R-105 Radio

I was wondering if anyone on the forum has had any experience with post war Russian R-105 field radios.
I purchased one here in the US and apparently was working well at one time. The unit is missing the batteries. There is the problem.
Been on a many websites in the UK, Germany, Russia and found supplies including the Batteries. I m reluctant to buy a unused 1971 battery that may or may not work because of age.
So my question has anyone on the forum been successful finding substitute rechargeable batteries here in the US?
George
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Old 02-23-2009, 09:37 PM   #2
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I have not used the rechargeable batteries for the radios, but I own some Russian field telephones and I just use several batteries in series to operate them. I read the radio collector website article about Russian rechargeable radio batteries and would not recommend trying to use period batteries. They lose their charge and are not very efficient.
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Old 03-04-2009, 01:11 PM   #3
uscob
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Does the old Battery shows a voltage? If yes, it's very easy to use new Packs with the right Voltage.
The Russian Phones used a 10 Volts block, so it's really to fix a new 9 Volt Block to them.
I still have some original 10 Volt Blocks, but sell them only as a display item and not for use.
Nico
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Old 03-05-2009, 07:22 AM   #4
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Quote:
Originally Posted by uscob View Post
Does the old Battery shows a voltage? If yes, it's very easy to use new Packs with the right Voltage.
The Russian Phones used a 10 Volts block, so it's really to fix a new 9 Volt Block to them.
I still have some original 10 Volt Blocks, but sell them only as a display item and not for use.
Nico

Nico No batteries came with my set. Your russian 10 volt batteries seem like quite a bit juice for my 2.4 volt radio. Thanks for the offer

Below is the description of batteries from a UK site.
( KH-24 ) 2KH-24 Russian Battery
The KH-24 is used in the R-105, R-108, R-109D series of transceivers. 1.2 Volt Nickel Cadmium or Nickel Iron Battery. Supplied without electrolyte and must be filled before charging. Electrolyte is a solution of Potassium Hydroxide in distilled water with a small amount of Lithium Hydroxide. Electrolyte density 1.2 g/ml. Normal charging rate, 3.3 Amp for 6 hours. New and unissued dated 1971, untested.
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Old 03-31-2009, 02:00 PM   #5
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R-105D used two KN-24 batteries. Tension of feed - 4.8 V (2 х 2.4 V)
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Old 03-31-2009, 09:03 PM   #6
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Quote:
Originally Posted by Mixer View Post
R-105D used two KN-24 batteries. Tension of feed - 4.8 V (2 х 2.4 V)
I still wish I could find a source here in the US for the orig batteries or even a substitute.
George
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Old 04-01-2009, 10:10 AM   #7
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try attending a radio rally.

i went to one here in the uk, there was tones of russian radios
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NiCd, the solution to your problem
Old 04-21-2009, 11:35 AM   #8
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R-105 series use 4 alkaline (ferro-nickel) accus, 4 x 1,2V / 24Ah. You can use instead big NiCd cells (4x1,25V), at least "D" type. I am using 7Ah NiCd-s.
How to proceed. Put the 4 NiCd in serial circuit. Open the rear lid of the transceiver and search for a black rubber coated wire that ends in a metal plate marked "-" . Connect that to the "-" of the first NiCd in the series. That is the general null.
Search then a similar wire marked "+-". Connect it to the middle of the series (so, +2,5V).
The third wire is marked "+". Connect it to the "+" of the last NiCd in the series (trat is, +5V).
Then verify, by starting the radio station. The on/off contact is easy to identify: down in the right corner, the only one that can be operated with the front lid closed. If corectly connected to NiCds, the radio will emit a continous vibration (that is the "vibrator" high tension generator for the valves inside).
On the front panel, you have a meter. At its left it you have a selector (down = voltage/ up = antenna tuning). The meter must be in the coloured (green) part of the scale (approx 5V).
If you do not know how to actually use the transceiver, let me know and I'll help you. That was the first radio that I have operated, back in 1979.
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Old 04-18-2011, 08:09 PM   #9
Franz20
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I am aware of the Necropost but I would like to ask a question regarding this radio.

What are the differences between the R 105m and the German WW2 f radios.

I have access to a 105m but want to know if I can use it for my living history display.

Thank you for any help.

Franz
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Old 04-20-2011, 03:42 AM   #10
Kozlov
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I should think a quick google for a decent couple of photos will tell you what the cosmetic differences are.
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Old 05-05-2011, 11:37 PM   #11
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Franz, it depends on the observer. When I was wandering around the shows last year, I spotted at quite a distance and couldn't help but laugh at the sight of Wehrmacht troops fiddling with quite obvious (to me anyway) post-war Soviet gear at quite a few different encampments. If I was Teknikoffizer at a TR impression, I would do some non-permanent mods to the radio casing, control panels, headgear and antenna using plastic card, vac-formed plastic, moulded resin etc.
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