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nmm nmm is offline
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Default AKG BX-20E Light Bulbs

Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?

Should I just be looking at changing the sockets to a more normal
bulb?


ahh so many questions.



Thanks In Advance

nmm
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Mike Rivers Mike Rivers is offline
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Default AKG BX-20E Light Bulbs

On 2/2/2011 12:06 AM, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?


Probably. Is there a number on it at all? You might try
looking at the pictures here to see if you can identify at
least the base type. You may need to measure the voltage (at
the socket) with a voltmeter in order to further identify it.

http://tinyurl.com/miniature-lamps



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Peter Larsen[_3_] Peter Larsen[_3_] is offline
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Default AKG BX-20E Light Bulbs

Mike Rivers wrote:

On 2/2/2011 12:06 AM, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a
weird thread, push in and twist, but not the usual style.


Is this something that is still available? Are they some weird
Euro-70s thing?


Probably. Is there a number on it at all? You might try
looking at the pictures here to see if you can identify at
least the base type. You may need to measure the voltage (at
the socket) with a voltmeter in order to further identify it.


http://tinyurl.com/miniature-lamps


I know of some small run designs that used Märklin toy train bulbs at below
nominal voltage.

Kind regards

Peter Larsen




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Mark Mark is offline
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Default AKG BX-20E Light Bulbs

On Feb 2, 12:06*am, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?

Should I just be looking at changing the sockets to a more normal
bulb?

ahh so many questions.

Thanks In Advance

nmm


the most commonly used pilot lamp bulb is a push and twist.

#47 6.3V

Mark
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Scott Dorsey Scott Dorsey is offline
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Default AKG BX-20E Light Bulbs

Mark wrote:
On Feb 2, 12:06=A0am, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?

Should I just be looking at changing the sockets to a more normal
bulb?

ahh so many questions.

Thanks In Advance

nmm


the most commonly used pilot lamp bulb is a push and twist.

#47 6.3V


That's a miniature bayonet base. There is also a submini bayonet which
is smaller.

I seem to remember that the AKG reverb lights were wedge-base ones, but
maybe not on the BX-20.

How about a photo with a ruler?
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."


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Bill Graham Bill Graham is offline
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Default AKG BX-20E Light Bulbs

Mark wrote:
On Feb 2, 12:06 am, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a
weird thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?

Should I just be looking at changing the sockets to a more normal
bulb?

ahh so many questions.

Thanks In Advance

nmm


the most commonly used pilot lamp bulb is a push and twist.

#47 6.3V

Mark


If you do decide to "change the sockets", look into LED's. They last many
times longer than incandescents in most applications. You may find that
someone alredy makes an LED lamp that fits in the same socket as what you
have now.

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Klay_Anderson Klay_Anderson is offline
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Default AKG BX-20E Light Bulbs

On Feb 1, 10:06*pm, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?



OK you youngsters. Looking at the BX20 schematic and after
electroshock to recharge my memory, the mains lamp on the power supply
is across the mains primary. Memory says that this was a common (in
Europe) neon discharge bulb with integral resistor. This was also the
case on EMT, Sennheiser and Neumann power supplies. The USA NE2-style
had discharge rods, was bare glass with no resistor, but these cute
little bayonets had two half-moon discharge plates facing up away from
the base and a bit of magnifying glass on the bulb tip for top-
viewing. Resistor was in the base--I think. Neon bulbs get gassy over
time and fade out. One could cobble a replacement from the existing
bulb base, a neon lamp and a resistor. I see the pilot lamp on the
remote is fed from 24VDC and that might be had commercially. It may
be a wedge bulb like Dolby used in the 361s of the time (remember when
Dolby was in the UK?). I actually still have some of those bulbs.

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[email protected] lawrencemalchose@gmail.com is offline
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Default AKG BX-20E Light Bulbs

On Thursday, February 3, 2011 at 5:45:47 AM UTC-8, Klay Anderson wrote:
On Feb 1, 10:06Â*pm, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?



OK you youngsters. Looking at the BX20 schematic and after
electroshock to recharge my memory, the mains lamp on the power supply
is across the mains primary. Memory says that this was a common (in
Europe) neon discharge bulb with integral resistor. This was also the
case on EMT, Sennheiser and Neumann power supplies. The USA NE2-style
had discharge rods, was bare glass with no resistor, but these cute
little bayonets had two half-moon discharge plates facing up away from
the base and a bit of magnifying glass on the bulb tip for top-
viewing. Resistor was in the base--I think. Neon bulbs get gassy over
time and fade out. One could cobble a replacement from the existing
bulb base, a neon lamp and a resistor. I see the pilot lamp on the
remote is fed from 24VDC and that might be had commercially. It may
be a wedge bulb like Dolby used in the 361s of the time (remember when
Dolby was in the UK?). I actually still have some of those bulbs.


Both bulbs are BA7s base. The 24/28v version is readily available online. The Neon Pilot lamp not so much. I did find a vendor who had a few unmarked BA7s Neons and I got lucky.
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Scott Dorsey Scott Dorsey is offline
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Default AKG BX-20E Light Bulbs

In article ,
wrote:
On Thursday, February 3, 2011 at 5:45:47 AM UTC-8, Klay Anderson wrote:
On Feb 1, 10:06=C2=A0pm, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.

Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?

=20
=20
OK you youngsters. Looking at the BX20 schematic and after
electroshock to recharge my memory, the mains lamp on the power supply
is across the mains primary. Memory says that this was a common (in
Europe) neon discharge bulb with integral resistor. This was also the
case on EMT, Sennheiser and Neumann power supplies. The USA NE2-style
had discharge rods, was bare glass with no resistor, but these cute
little bayonets had two half-moon discharge plates facing up away from
the base and a bit of magnifying glass on the bulb tip for top-
viewing. Resistor was in the base--I think. Neon bulbs get gassy over
time and fade out. One could cobble a replacement from the existing
bulb base, a neon lamp and a resistor. I see the pilot lamp on the
remote is fed from 24VDC and that might be had commercially. It may
be a wedge bulb like Dolby used in the 361s of the time (remember when
Dolby was in the UK?). I actually still have some of those bulbs.


Both bulbs are BA7s base. The 24/28v version is readily available online. T=
he Neon Pilot lamp not so much. I did find a vendor who had a few unmarked =
BA7s Neons and I got lucky.


It just happened that I needed some for a mike power supply recently and
Grainger had them in stock.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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[email protected] jjaj1998@netscape.net is offline
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Default AKG BX-20E Light Bulbs

On Wednesday, February 2, 2011 at 12:06:59 AM UTC-5, nmm wrote:
Both the bulbs are burnt out on my AKG BX-20E reverb. They are a weird
thread, push in and twist, but not the usual style.


Believe they are referred to as bayonet base.

I'd go LED.

Jack




Is this something that is still available? Are they some weird
Euro-70s thing?

Anyone know the name and part number I should be looking for?

Should I just be looking at changing the sockets to a more normal
bulb?


ahh so many questions.



Thanks In Advance

nmm


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