[[email protected]]

Anyone have a schematic for the Electro-Voice "The Entertainer"
speaker, model 100S (or its crossover board)? This is a two-way
system, 12" woofer, "constant directivity" tweeter, in a molded
plastic enclosure, manufactured ca 1984, now out of production.

The folks at Bosch Security Systems (current owner of EV) are unable
to help me.

[Scott Dorsey]

wrote:
Anyone have a schematic for the Electro-Voice "The Entertainer"
speaker, model 100S (or its crossover board)? This is a two-way
system, 12" woofer, "constant directivity" tweeter, in a molded
plastic enclosure, manufactured ca 1984, now out of production.

The folks at Bosch Security Systems (current owner of EV) are unable
to help me.

Those were actually made by Tapco for EV, so you might have some luck
talking to the people at Mackie.

What's so sophisticated about the crossover that you can't just draw it
out, though?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[GregS[_3_]]

In article , (Scott Dorsey) wrote:
wrote:
Anyone have a schematic for the Electro-Voice "The Entertainer"
speaker, model 100S (or its crossover board)? This is a two-way
system, 12" woofer, "constant directivity" tweeter, in a molded
plastic enclosure, manufactured ca 1984, now out of production.

The folks at Bosch Security Systems (current owner of EV) are unable
to help me.

Those were actually made by Tapco for EV, so you might have some luck
talking to the people at Mackie.

What's so sophisticated about the crossover that you can't just draw it
out, though?

I am wondering why he needs one.

greg

[[email protected]]

On Apr 3, 1:02*pm, (Scott Dorsey) wrote:
wrote:
Anyone have a schematic for the Electro-Voice "The Entertainer"
speaker, model 100S (or its crossover board)? This is a two-way
system, 12" woofer, "constant directivity" tweeter, in a molded
plastic enclosure, manufactured ca 1984, now out of production.

The folks at Bosch Security Systems (current owner of EV) are unable
to help me.

Those were actually made by Tapco for EV, so you might have some luck
talking to the people at Mackie.

I thought it was just the matching powered mixer (100M) that was from
Tapco, not the speakers, but it's worth a try. Thanks.

What's so sophisticated about the crossover that you can't just draw it
out, though?

A few components are too far gone for me to determine the correct
values.

The circuit is a bit more complicated than I would have expected, but
yeah, it's just a passive crossover with variable tweeter attenuation.
I guess I could reverse-engineer it and determine some appropriate
values to use, but I was hoping to just look up the values, replace a
few parts, and be done with it.

[GregS[_3_]]

In article , wrote:
On Apr 3, 1:02=A0pm, (Scott Dorsey) wrote:
wrote:
Anyone have a schematic for the Electro-Voice "The Entertainer"
speaker, model 100S (or its crossover board)? This is a two-way
system, 12" woofer, "constant directivity" tweeter, in a molded
plastic enclosure, manufactured ca 1984, now out of production.

The folks at Bosch Security Systems (current owner of EV) are unable
to help me.

Those were actually made by Tapco for EV, so you might have some luck
talking to the people at Mackie.

I thought it was just the matching powered mixer (100M) that was from
Tapco, not the speakers, but it's worth a try. Thanks.

What's so sophisticated about the crossover that you can't just draw it
out, though?

A few components are too far gone for me to determine the correct
values.

The circuit is a bit more complicated than I would have expected, but
yeah, it's just a passive crossover with variable tweeter attenuation.
I guess I could reverse-engineer it and determine some appropriate
values to use, but I was hoping to just look up the values, replace a
few parts, and be done with it.

It should show up somewhere.

[Scott Dorsey]

wrote:

A few components are too far gone for me to determine the correct
values.

On both speakers? They are totally melted?

The circuit is a bit more complicated than I would have expected, but
yeah, it's just a passive crossover with variable tweeter attenuation.
I guess I could reverse-engineer it and determine some appropriate
values to use, but I was hoping to just look up the values, replace a
few parts, and be done with it.

You can make some pretty good guesses if you know the turnover frequency.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[[email protected]]

On Apr 3, 3:22*pm, (Scott Dorsey) wrote:
wrote:

A few components are too far gone for me to determine the correct
values.

On both speakers? *They are totally melted?

The circuit is a bit more complicated than I would have expected, but
yeah, it's just a passive crossover with variable tweeter attenuation.
I guess I could reverse-engineer it and determine some appropriate
values to use, but I was hoping to just look up the values, replace a
few parts, and be done with it.

You can make some pretty good guesses if you know the turnover frequency.
--scott
--
"C'est un Nagra. *C'est suisse, et tres, tres precis."

Only one speaker here; otherwise I'd just get the info from the good
one!

Nothing's melted, nothing's charred, nobody let the smoke out. Serious
rodent damage. I suppose if I dissected the dead mouse found in the
batting, I might find some of the information in its digestive tract,
but I'd rather invent values as you suggest, than deal with that!

Mickey must have been really hungry last winter. Ate some fiberglass
batting, tried some caps, and seriously gnawed away at what used to be
a wirewound resistor.

It all seemed easy at first. Open it up, replace something, and done.
But this is turning into a major pain in the aft section! The best
laid plans ...

[Scott Dorsey]

wrote:

It all seemed easy at first. Open it up, replace something, and done.
But this is turning into a major pain in the aft section! The best
laid plans ...

Here you go....
http://archives.telex.com/archives/E...%20Service.pdf

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

[Eeyore]

Scott Dorsey wrote:

wrote:

It all seemed easy at first. Open it up, replace something, and done.
But this is turning into a major pain in the aft section! The best
laid plans ...

Here you go....
http://archives.telex.com/archives/E...%20Service.pdf

And no, these caps aren't millifarads. Whyever did Americans mix up milli with micro ?

Graham

[Scott Dorsey]

Eeyore wrote:
Scott Dorsey wrote:

wrote:

It all seemed easy at first. Open it up, replace something, and done.
But this is turning into a major pain in the aft section! The best
laid plans ...

Here you go....
http://archives.telex.com/archives/E...%20Service.pdf

And no, these caps aren't millifarads. Whyever did Americans mix up milli with micro ?

The British were doing that too until shortly after WWII.

Used to be caps were all in MFD (note the capital M, not lower case), or in
MMFD (which is pF). That was pretty much universal use in the US until
the seventies. Typewriters didn't have any mu on them....
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[[email protected]]

On Apr 3, 5:03*pm, (Scott Dorsey) wrote:
wrote:
It all seemed easy at first. Open it up, replace something, and done.
But this is turning into a major pain in the aft section! The best
laid plans ...
Here you go....http://archives.telex.com/archives/E...20Manuals/100S...

Hey, thanks for being so smart! Telex ... yeah, I should have tried
them, too. Electro-Voice, Gulton, Tapco, Telex, Bosch, it's hard to
keep track.

That's exactly what I'm looking for, and more. Parts list with
tolerances and current ratings an' all! Thanks for the link. The best
laid plans of mice and microfarads.

[Scott Dorsey]

wrote:
On Apr 3, 5:03=A0pm, (Scott Dorsey) wrote:
wrote:
It all seemed easy at first. Open it up, replace something, and done.
But this is turning into a major pain in the aft section! The best
laid plans ...
Here you go....http://archives.telex.com/archives/E...s/Service%20M=
anuals/100S...

Hey, thanks for being so smart! Telex ... yeah, I should have tried
them, too. Electro-Voice, Gulton, Tapco, Telex, Bosch, it's hard to
keep track.

Two years ago it was easy. Anybody who wasn't owned by EVI was owned by
Harman International. Now it's starting to come apart at the seams and we
may soon be back to having individual companies in the audio industry again...
--scott

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

[Paul Stamler[_2_]]

wrote in message
...
On Apr 3, 5:03 pm, (Scott Dorsey) wrote:
wrote:
It all seemed easy at first. Open it up, replace something, and done.
But this is turning into a major pain in the aft section! The best
laid plans ...
Here you
go....http://archives.telex.com/archives/E...20Manuals/100S...

Hey, thanks for being so smart! Telex ... yeah, I should have tried
them, too. Electro-Voice, Gulton, Tapco, Telex, Bosch, it's hard to
keep track.

That's exactly what I'm looking for, and more. Parts list with
tolerances and current ratings an' all! Thanks for the link. The best
laid plans of mice and microfarads.

Oh, and all of the caps in 100S's were mylar, not electrolytic.

Peace,
Paul