From dfischer at usol.com  Thu Mar  2 01:34:03 2006
From: dfischer at usol.com (Duane Fischer, W8DBF)
Date: Thu Mar  2 01:34:21 2006
Subject: [Vintage-Audio] Why Was The AR and Advent Speakers Special?
Message-ID: <018501c63dc3$4e3ebf90$1cec1240@hpdc5100mt>



Hi All,

Can someone tell me what it was about the Acoustic Research speakers that 
made that so popular and different?

I am told that the same man who came up with the design for the Acoustic 
Research speakers also designed the Advent speakers. What was special about 
the Advent?

Since both systems use infinite baffle cabinets and no ports, how do they 
improve upon the low end response of an eight inch speaker cone surface?

Thank you for sharing your wisdom and experience with me.

FYI: I do have a very nice pair of Advent model 2002 with an eight inch and 
a tweeter. I had both eight inch rebuilt because the foam suspension had 
broken down completely. The cabinets and grill cloth were in excellent 
condition. It cost me $100 to have the speakers professionally rebuilt.

Duane W8DBF

P.S. Due to my health issues I am being forced to reduce the current 
resident population of audio gear, speaker systems, electronic gadgets that 
currently live here.  I wish one of you guys would buy my beautiful totally 
rebuilt H.H. Scott LK-48B integrated stereo amp and H.H. Scott LT-110 FM 
stereo tuner with manuals.



From rboogher at cox.net  Fri Mar  3 00:37:47 2006
From: rboogher at cox.net (Richard Boogher)
Date: Fri Mar  3 00:38:54 2006
Subject: [Vintage-Audio] Why Was The AR and Advent Speakers Special?
In-Reply-To: <018501c63dc3$4e3ebf90$1cec1240@hpdc5100mt>
Message-ID: <MIEKJKCKLJGPNJAGGEAMAEMACBAA.rboogher@cox.net>

Duane,
I have always been an Altec fan and have owned several Voice of The Theaters
over the years. I have for my main 5.1 system a pair of Model 19s which I
bought new in 1978. My first experience with the AR 3a was when a friend
brought one over and hooked it up to my system as the right channel with a
VoTT for the left. The sound was amazing, at high levels in a normal size
room there was virtually no difference between the two. Very linear and low
distortion. Quite an A+B comparison test considering the VoTT are (were) the
standard of the industry. The Ar's were about 1 tenth as big as the A7's and
sealed box (acoustic suspension) design. They used a lot of power to achieve
the sound they put out, not very efficient. As I remember Henry Kloss was
behind the AR's and Advent. The 3a's are very impressive. I was driving them
with a Crown DC300 at the time.

Dick

-----Original Message-----
From: vintage-audio-bounces@mailman.qth.net
[mailto:vintage-audio-bounces@mailman.qth.net]On Behalf Of Duane
Fischer, W8DBF
Sent: Wednesday, March 01, 2006 10:34 PM
To: vintage-audio@mailman.qth.net
Subject: [Vintage-Audio] Why Was The AR and Advent Speakers Special?




Hi All,

Can someone tell me what it was about the Acoustic Research speakers that
made that so popular and different?

I am told that the same man who came up with the design for the Acoustic
Research speakers also designed the Advent speakers. What was special about
the Advent?

Since both systems use infinite baffle cabinets and no ports, how do they
improve upon the low end response of an eight inch speaker cone surface?

Thank you for sharing your wisdom and experience with me.

FYI: I do have a very nice pair of Advent model 2002 with an eight inch and
a tweeter. I had both eight inch rebuilt because the foam suspension had
broken down completely. The cabinets and grill cloth were in excellent
condition. It cost me $100 to have the speakers professionally rebuilt.

Duane W8DBF

P.S. Due to my health issues I am being forced to reduce the current
resident population of audio gear, speaker systems, electronic gadgets that
currently live here.  I wish one of you guys would buy my beautiful totally
rebuilt H.H. Scott LK-48B integrated stereo amp and H.H. Scott LT-110 FM
stereo tuner with manuals.



_______________________________________________
Home: http://mailman.qth.net/mailman/listinfo/vintage-audio
List Administrator: Duane Fischer, W8DBF
** For Assistance: dfischer@usol.com **


From k5sep at yahoo.com  Fri Mar  3 19:43:41 2006
From: k5sep at yahoo.com (Bob Scupp)
Date: Fri Mar  3 19:44:14 2006
Subject: [Vintage-Audio] New Emersonradio website
Message-ID: <20060304004341.10444.qmail@web37304.mail.mud.yahoo.com>

To All-

Hello. This is just to announce there is a new
Emersonradio website on Yahoo Groups. The hyperlink is
below.

http://groups.yahoo.com/group/Emersonradio/

If you are interested in Emersonradios you are
welcomed to join us!




73's, 

Bob K5SEP 
Life Member QCWA and ARRL 
Member - Antique Wireless Association 
Life Member - New Mexico Radio Collectors Club

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
From dfischer at usol.com  Sun Mar  5 00:12:52 2006
From: dfischer at usol.com (Duane Fischer, W8DBF)
Date: Sun Mar  5 00:13:36 2006
Subject: [Vintage-Audio] Re Yamaha CR-1020
Message-ID: <007601c64013$7603bab0$91ec1240@hpdc5100mt>



Hello All,

I have here a very nice Yamaha Natural Sound model CR-1020 receiver. 
SCREECH! (applying brakes and skidding to a full stop)

Where the rodent's rump hairs did this term "receiver" come from? Like we 
had an integrated amplifier and a tuner that received AM/FM. They combine 
the two and we get a "receiver"? Why? I hate the term!

Alright, back to the original train of thought.

I especially like the CR-1020. It is spacious, well planned for features, 
the front panel is well thought out and it is very well built. Reminds me of 
an Abrams prototype!
The knobs can be gripped with no fear of bumping some other control and 
doing who knows what in this age of multiple functionality! The switches are 
positive in their movements and once again, you can move them without 
turning on several functions that transform the digital display into a LASER 
light show! The push buttons are also very positive in their movements 
without the sideways slop common today. Alright, so a totally blind man 
gives it his safe to feel without fear certification, who cares? Who should 
care are you guys out there with fingers the size of a broom handle! Not the 
length, the diameter! It must be horrible for you trying to operate anything 
electronic today. How do you type on a keyboard? All I can imagine is using 
my elbows to hit the keys with. A strong arguement for a spelling checker 
for sure! Now this CR-1020 you could operate without using up an entire 
stick of roll on armpit stench killer and taking so many showers in one day 
that the water department sends a man out to see where the leak in the water 
main is!

Reminds in principal of the Icom transceiver from about fifteen years ago 
called the 765. Remember it? A base station with the power supply built into 
it. Yes it had a large foot print, but you only needed one piece of gear and 
no external wires to the PS which is always a minimum of six inches farther 
away than the longest patch cords you can buy! The front panel layout was 
fantastic! Large knobs, large buttons, an analog display a person who was 
older could read without putting his nose on the glass and fogging it up.

Now this CR-1020 has one feature that troubles me, FM Dolby. I know it was a 
bad idea and I am aware it came and went faster than Elizabeth Taylor's 
husbands did! But what year did FM Dolby begin to be broadcast by commercial 
radio stations? How many years did the stations continue to broadcast in FM 
Dolby? What year was it stopped and forgotten about?

Then the really big question to strain the neurons memory circuits. Why did 
somebody invent Dolby for FM in the first place? The reason FM was used was 
because it was quiet, unlike AM, and was not subject to all of the hissing, 
popping, crackling and such sounds. Why did someone think that the consumer 
out there listening to FM needed noise reduction to remove, well, what was 
not there!

Thank you for your enlightenment gentlemen. I will sleep better knowing the 
truth behind the FM Dolby story.

Duane Fischer, W8DBF

 

From dfischer at usol.com  Fri Mar 10 22:02:48 2006
From: dfischer at usol.com (Duane Fischer, W8DBF)
Date: Fri Mar 10 22:04:43 2006
Subject: [Vintage-Audio] Re Need Part For Yamaha CR-1020
Message-ID: <004001c644b8$4a4c1850$6cec1240@hpdc5100mt>



Hello All,

I acquired a Yamaha Natural Sound CR-1020 receiver. Today I discovered when 
I switched it to stereo in the FM mode that there was no left channel output 
to the speaker. I tried the speaker select switch on both the "A" and the 
"B" speaker connections, nothing on the left channel. I have checked all 
switches and they appear to be properly set.

On the chance that the problem was in the internal FM tuner, I fed a stereo 
cassette deck in the auxilary input jacks. Still no left channel.

I tried a pair of stereo headphones, no left channel.

The receiver does have the 'FM Dolby' switch, it is in the 'off' position.

Any suggestions as to something I may have missed setting correctly?

If it is the audio output transistors, can anyone tell me what the make and 
model are? Where can they be purchased and how much? I hate to see this 
amplifier relegated to the trash, even though I have yet to use it since 
acquiring it, I love the specifications, features and front panel layout.

Thank you.

On behalf of Duane Fischer, W8DBF



From dfischer at usol.com  Wed Mar 15 18:04:08 2006
From: dfischer at usol.com (Duane Fischer, W8DBF)
Date: Wed Mar 15 18:07:04 2006
Subject: [Vintage-Audio] Diagram Needed
Message-ID: <005601c64884$d3c3b820$87ec1240@hpdc5100mt>



Hello All,

I am in need of the schematic for the Yamaha Natural Sound CR-1020 receiver 
from 1978. If any of you know where I could obtain a copy, please contact 
me. I am 'not' asking for a free one, I am willing to pay all copying costs 
or to buy a used copy.

Thank you very much.

Duane W8DBF
dfischer@usol.com

From rick at mnbrewers.com  Thu Mar 16 11:20:53 2006
From: rick at mnbrewers.com (Rick Larson)
Date: Thu Mar 16 11:23:57 2006
Subject: [Vintage-Audio] Re:  Diagram Needed
In-Reply-To: <005601c64884$d3c3b820$87ec1240@hpdc5100mt>
References: <005601c64884$d3c3b820$87ec1240@hpdc5100mt>
Message-ID: <44199065.8040605@mnbrewers.com>

Duane,
I searched the Net for some ideas and didn't find much.  Here are two 
search results that may help:

http://www.diyaudio.com/forums/showthread.php?s=&threadid=68121&highlight=

http://www.diyaudio.com/forums/showthread.php?s=&threadid=39094&highlight=

I searched Yamaha and didn't find a manual for the 1020 but did find a 
2020 (not sure what the difference is):

http://www2.yamaha.co.jp/manual/pdf/av/english/AFR/CR-2020.pdf

rick

>
>
> Hello All,
>
> I am in need of the schematic for the Yamaha Natural Sound CR-1020 
> receiver from 1978. If any of you know where I could obtain a copy, 
> please contact me. I am 'not' asking for a free one, I am willing to 
> pay all copying costs or to buy a used copy.
>
> Thank you very much.
>
> Duane W8DBF
> dfischer@usol.com
> ssistance: dfischer@usol.com ** 


From dfischer at usol.com  Thu Mar 16 13:22:40 2006
From: dfischer at usol.com (Duane Fischer, W8DBF)
Date: Thu Mar 16 13:25:37 2006
Subject: [Vintage-Audio] Re:  Diagram Needed
References: <005601c64884$d3c3b820$87ec1240@hpdc5100mt>
	<44199065.8040605@mnbrewers.com>
Message-ID: <005201c64926$a1495380$97ec1240@hpdc5100mt>

Rick,

Thank you very much.

There is a popular forum somewhere, so I am told by a friend in Ohio, where 
this receiver is frequently the topic for discussion. It seems to be quite 
popular among audio devotees, so that is encouraging. Now if I can find this 
guy in Sweden who was copying his diagrams for a member of this list and 
obtain a copy also.

Does anyone on this list have any experience with the 1978 Yamaha CR-1020?

Duane W8DBF

----- Original Message ----- 
From: "Rick Larson" <rick@mnbrewers.com>
To: "Vintage home and professional audio equipment from 1975 back" 
<vintage-audio@mailman.qth.net>
Sent: Thursday, March 16, 2006 10:20 AM
Subject: [Vintage-Audio] Re: Diagram Needed


> Duane,
> I searched the Net for some ideas and didn't find much.  Here are two 
> search results that may help:
>
> http://www.diyaudio.com/forums/showthread.php?s=&threadid=68121&highlight=
>
> http://www.diyaudio.com/forums/showthread.php?s=&threadid=39094&highlight=
>
> I searched Yamaha and didn't find a manual for the 1020 but did find a 
> 2020 (not sure what the difference is):
>
> http://www2.yamaha.co.jp/manual/pdf/av/english/AFR/CR-2020.pdf
>
> rick
>
>>
>>
>> Hello All,
>>
>> I am in need of the schematic for the Yamaha Natural Sound CR-1020 
>> receiver from 1978. If any of you know where I could obtain a copy, 
>> please contact me. I am 'not' asking for a free one, I am willing to pay 
>> all copying costs or to buy a used copy.
>>
>> Thank you very much.
>>
>> Duane W8DBF
>> dfischer@usol.com
>> ssistance: dfischer@usol.com **
>
>
> _______________________________________________
> Home: http://mailman.qth.net/mailman/listinfo/vintage-audio
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer@usol.com **
>
>
> -- 
> No virus found in this incoming message.
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>
> 

