NEED !!! Radioberry components !!! 8:1 balun

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esk...@gmail.com

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Feb 14, 2021, 2:31:30 PMFeb 14
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Hi all

I am looking for 2psc of  8:1 Balun T401 manufaktur is MACOM MABA-010143-FLUX18...I have to pay 28€ for it at  Mouser.dk/..is there a cheaper way ????

this is the only parts I need to get my Radioberry up and run :-)

73" OZ1CT Ben

softerh...@gmail.com

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Feb 14, 2021, 8:40:04 PMFeb 14
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Hi Ben,

You can wind your own on a BN43-2402 core. Take a look at the Hermes-Lite schematic on which the Radioberry RX front-end is based:

I'm not sure about the Radioberry PCB, but the HL2 PCB has a dual footprint which allows for the use of the SMT part or a BN43-2402. Even if the dual footprint does not exist, you should be able to carefully solder leads to the SMT footprint.

73,

Steve
kf7o

Radioberry

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Feb 15, 2021, 3:54:52 AMFeb 15
to Radioberry

Hi Ben,

Steve is right.

I do not have spare ones... but for the transformers you can use BN-61-2402 or BN-43-2402.

Using 0.2mm wire.

Transmit
In the schema the transformer T401 indicates a 1:1 ratio.

The antenna site use unifilar 6T winding the other site uses 3T bifilair winding => impedance ratio 64/64 = 1.0

Receive
The ratio for the transformer T402 indicate a 1:8 ratio but i actually build a 9:1 transformer

6T bifilair winding and a 4T unifilar winding => impedance ratio 144/16 = 9


The bifilair winding are used to make the middle of the transformer.


Is it possible to get these transformers?  If not i can send you some.

Hope this helps

73 Johan
PA3GSB

Op zondag 14 februari 2021 om 20:31:30 UTC+1 schreef esk...@gmail.com:

Bent Andersen

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Feb 15, 2021, 6:03:31 AMFeb 15
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Hi Johan

It is not impossible to get it....but paying 20€ in shipping is to much.... So I was looking for a cheaper way....so if you have 2 I can buy it would be nice so I can finish this radio. And pay via PayPal it would be nice 😉

I know that shipping is very expensive...here in Denmark if I have to send a direct Qsl card outside Denmark it cost 4.50 € (5.50$)

73" oz1ct Ben

Send from my mobile office.

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Radioberry

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Feb 15, 2021, 7:39:30 AMFeb 15
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Hi Ben

No problem i will send 2pcs each BN43and BN61

Do you have 0.2mm wire?

Hi ... Not considering a PA board?

Please send me a private mail with your address

73 Johan
PA3GSB




Op maandag 15 februari 2021 om 12:03:31 UTC+1 schreef esk...@gmail.com:

Bent Andersen

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Feb 15, 2021, 7:50:54 AMFeb 15
to Radioberry
Hi Johan

No cu wire....and yes I was thinking about the pa board.... Price ???

Ben

Send from my mobile office.

pa3gsb

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Feb 15, 2021, 10:04:08 AMFeb 15
to Radioberry

Hi Ben

Iam asking 60 euro for the pa board.

73 Johan
Op maandag 15 februari 2021 om 13:50:54 UTC+1 schreef esk...@gmail.com:
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