I need help repairing an electrostatic speaker...

Archived from groups: rec.audio.pro (More info?)

<TheBenevolentUniversePremise@gmail.com> wrote:
> I recently purchased an old pair of Janszen Z-600 speakers. One of the
>speaker's electrostatic tweeter sections is not working. Upon opening
>up the cabinet I found that a capacitor and another part were broken
>away from the power supply board. The part I cannot identify is
>labeled:
>
>RECTICON CORP.
>CONSHOHOCKEN, PA.
>S 6350 G6
>
> Any idea what this is? A didode or rectifier? Any idea how I can find
>a replacement? I can't simply solder this one back into place because
>it's lead has broken off right up against the body of the part. The
>part is about 2 inches long and about 1/4" in diameter. Thanks for any
>information.

Not seeing the circuit, I don't know, but it sounds like it could be
a high voltage rectifier that is part of the a big voltage multiplier.

Measure the voltage drop across it with a meter that has a diode drop
function. Divide by 0.6V and you know how many individual junctions is
inside it.

You might send them to Sheldon Stokes... he has a site up at
www.quadesl.com and he works on a lot of electrostats.
--scott

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

Archived from groups: rec.audio.pro (More info?)

<TheBenevolentUniversePremise@gmail.com> wrote in message
news:1122434092.574723.72850@g14g2000cwa.googlegroups.com
> Hello,
> I recently purchased an old pair of Janszen Z-600
> speakers. One of the speaker's electrostatic tweeter
> sections is not working. Upon opening up the cabinet I
> found that a capacitor and another part were broken away
> from the power supply board. The part I cannot identify
> is labeled:

> RECTICON CORP.
> CONSHOHOCKEN, PA.
> S 6350 G6

> Any idea what this is? A diode or rectifier?

My money is on diode.

Recticon has existed at least until lately as a producer of
silicon wafers and Superfund sites. The former puts them in
the semiconductor league and not in the capacitor league.

> Any idea how I can find a replacement?

Study its operational parameters from the similar device in
the other speaker that you say is working.

The advice of measuring the forward voltage drop with a
current-limited supply is a good one but you might not be
able to implement it due to the broken lead.

If you can measure voltages in the operational device, do so
with care because they are likely to be high, on the order
of several KV. Going too low hurts, going to high won't
hurt.

Take whatever DC voltage that is in its vicinity and
multiply by about 3 to 4 to get the PIV rating of the
replacment device.

> I can't simply solder this
> one back into place because it's lead has broken off
> right up against the body of the part. The part is about
> 2 inches long and about 1/4" in diameter. Thanks for any
> information. -Paul

Sounds like a high voltage rectifier.

Archived from groups: rec.audio.pro (More info?)

On Wed, 27 Jul 2005 07:55:38 -0400, "Arny Krueger" <arnyk@hotpop.com>
wrote:

><TheBenevolentUniversePremise@gmail.com> wrote in message
>news:1122434092.574723.72850@g14g2000cwa.googlegroups.com
>> Hello,
>> I recently purchased an old pair of Janszen Z-600
>> speakers. One of the speaker's electrostatic tweeter
>> sections is not working. Upon opening up the cabinet I
>> found that a capacitor and another part were broken away
>> from the power supply board. The part I cannot identify
>> is labeled:
>
>> RECTICON CORP.
>> CONSHOHOCKEN, PA.
>> S 6350 G6
>
Sounds Like a rectifier