From Newsgroup: alt.ham-radio.hf

Hej alle
Er der nogen her i gruppen der har erfaring med genoplivning af rørradioer? Jeg har fået en National NBS-1, hvor flere bånd er døde. Et bånd er ikke død men ufølsom, så det vil om ikke andet sige at mellemfrekvens og hvad der ligger derefter er nogenlunde ok.
Radioen har rør med Octal fatninger.
Jeg har også en anden modtager, som kommer fra DISA og som har været installeret på Georg Stage.
/Nico OZ1BMC

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From Newsgroup: alt.ham-radio.hf

Hi all
Sorry I wrote the original message in danish !

Here is the englis version

Anybody in this group having experience with revival of tube radios?
I recentlly got a National NBS-1, where several of the bands are dead. One
of the bands is not dead but insensitiv, so that should mean that the MF and what comes after that, should be ok.
The radio has Octal sockets.
The radio is probably from 1948. I suspect that some of the parts, in particular the capacitors, are so old that they should be replaced. Would anyone have some good hints?

73, Nico (OZ1BMC)


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From Newsgroup: alt.ham-radio.hf

The days or repairing electronics are over except by
sending the unit back to manufacturer.

Randy AI4VK

PS Have gotten my Yaesu FT-2000D repaired but I had to ship
it back to Yaseu in California.



"Nico de Jong" wrote in message news:c3sns5F3o74U1@mid.individual.net...

Hi all
Sorry I wrote the original message in danish !

Here is the englis version

Anybody in this group having experience with revival of tube radios?
I recentlly got a National NBS-1, where several of the bands are dead. One
of the bands is not dead but insensitiv, so that should mean that the MF and what comes after that, should be ok.
The radio has Octal sockets.
The radio is probably from 1948. I suspect that some of the parts, in particular the capacitors, are so old that they should be replaced. Would anyone have some good hints?

73, Nico (OZ1BMC)


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From Newsgroup: alt.ham-radio.hf

At Thu, 07 Aug 2014 00:21:34 -0400, Randy Kehrt rearranged some electrons
to write:

The days or repairing electronics are over except by sending the unit
back to manufacturer.

Randy AI4VK

PS Have gotten my Yaesu FT-2000D repaired but I had to ship it back to
Yaseu in California.

"Nico de Jong" wrote in message
news:c3sns5F3o74U1@mid.individual.net...

Hi all Sorry I wrote the original message in danish !

Here is the englis version

Anybody in this group having experience with revival of tube radios?
I recentlly got a National NBS-1, where several of the bands are dead.
One of the bands is not dead but insensitiv, so that should mean that
the MF and what comes after that, should be ok.
The radio has Octal sockets.
The radio is probably from 1948. I suspect that some of the parts, in particular the capacitors, are so old that they should be replaced.
Would anyone have some good hints?

73, Nico (OZ1BMC)

rec.radio.amateur.boatanchors

There are usually some active posters there.
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From Newsgroup: alt.ham-radio.hf

On Thursday, 7 August 2014 14:21:34 UTC+10, Randy Kehrt wrote:

The days or repairing electronics are over except by

sending the unit back to manufacturer.

Randy AI4VK

PS Have gotten my Yaesu FT-2000D repaired but I had to ship

it back to Yaseu in California.

"Nico de Jong" wrote in message news:c3sns5F3o74U1@mid.individual.net...

Hi all

Sorry I wrote the original message in danish !

Here is the englis version

Anybody in this group having experience with revival of tube radios?

I recentlly got a National NBS-1, where several of the bands are dead. One

of the bands is not dead but insensitiv, so that should mean that the MF and

what comes after that, should be ok.

The radio has Octal sockets.

The radio is probably from 1948. I suspect that some of the parts, in

particular the capacitors, are so old that they should be replaced. Would

anyone have some good hints?

73, Nico (OZ1BMC)

That's completely wrong.

1) Repairing old equipment is not so difficult providing you know what you are doing... and
2) The OP has little chance of sending a 1948 piece of gear back to the probably long gone out of business company!

Electrolytic caps will probably all need replacing

All switch contacts cleaned

Check insulation of all cabling and rewire where necessary.

Check all valve fils light up

Good luck...

Daniel (VK2FERN)... Chartered Elec/Electr Engineer and former tech with 1000's of hours bench time...



--- Synchronet 3.21b-Linux NewsLink 1.2

From Newsgroup: alt.ham-radio.hf

On Thursday, 7 August 2014 14:21:34 UTC+10, Randy Kehrt wrote:

The days or repairing electronics are over except by

sending the unit back to manufacturer.

Randy AI4VK

PS Have gotten my Yaesu FT-2000D repaired but I had to ship

it back to Yaseu in California.

"Nico de Jong" wrote in message news:c3sns5F3o74U1@mid.individual.net...

Hi all

Sorry I wrote the original message in danish !

Here is the englis version

Anybody in this group having experience with revival of tube radios?

I recentlly got a National NBS-1, where several of the bands are dead. One

of the bands is not dead but insensitiv, so that should mean that the MF and

what comes after that, should be ok.

The radio has Octal sockets.

The radio is probably from 1948. I suspect that some of the parts, in

particular the capacitors, are so old that they should be replaced. Would

anyone have some good hints?

73, Nico (OZ1BMC)

And DO NOT TOP POST!

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