True, but If I go much beyond 800 x 600 on my home 15" dia screen, I have trouble seeing things. On Sat, 5 Feb 2000 sstinc wrote: From: sstinc:"First sstinc:Last" <jamesbongiorno@...>
Dear Jeff, Most of today's modern laptops use a 1024 x 768 screen at
16bit color. 800 x 600 is on the small side for screens less than 12"
diagonal. Even the most inexpensive laptops in the last couple of years
have had this as a minimum screen size. James Bongiorno
jgross@... wrote:
From: jgross@...
800 x 600 is pretty much the norm. I use that at home, and
at work, my screen size is much larger.
Win98 at 640x480 is like driving a car while looking
through a toilet paper tube, with one eye closed.
-=Jeff Gross=-
On 5 Feb 2000 wardsweb@... wrote:
From: wardsweb@...
Sorry for the forum departure, but my new site is almost there. While InterNIC
transfers my domain to my new server, I was wondering what display size you run
in? My concern is really how many of you use less than 800x600.
Just email me direct: wardsweb@...
Thanks
Luther
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|
sstinc:"First sstinc:Last"
Dear Jeff,
Most of today's modern laptops use a 1024 x 768 screen at 16bit color. 800 x 600 is
on the small side for screens less than 12" diagonal. Even the most inexpensive
laptops in the last couple of years have had this as a minimum screen size.
James Bongiorno
jgross@... wrote:
toggle quoted message
Show quoted text
From: jgross@...
800 x 600 is pretty much the norm. I use that at home, and
at work, my screen size is much larger.
Win98 at 640x480 is like driving a car while looking
through a toilet paper tube, with one eye closed.
-=Jeff Gross=-
On 5 Feb 2000 wardsweb@... wrote:
From: wardsweb@...
Sorry for the forum departure, but my new site is almost there. While InterNIC
transfers my domain to my new server, I was wondering what display size you run
in? My concern is really how many of you use less than 800x600.
Just email me direct: wardsweb@...
Thanks
Luther
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|
800 x 600 is pretty much the norm. I use that at home, and
at work, my screen size is much larger.
Win98 at 640x480 is like driving a car while looking
through a toilet paper tube, with one eye closed.
-=Jeff Gross=-
toggle quoted message
Show quoted text
On 5 Feb 2000 wardsweb@... wrote: From: wardsweb@...
Sorry for the forum departure, but my new site is almost there. While InterNIC
transfers my domain to my new server, I was wondering what display size you run
in? My concern is really how many of you use less than 800x600.
Just email me direct: wardsweb@...
Thanks
Luther
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|
Sorry for the forum departure, but my new site is almost there. While InterNIC
transfers my domain to my new server, I was wondering what display size you run
in? My concern is really how many of you use less than 800x600.
Just email me direct: wardsweb@...
Thanks
Luther
|
It's a shame about Audio Magazine, but it seems that
with the proliferation of cheap crap audio equipment,
and everyone's pre-occupation with the internet, Custom
home audio is a dwindling interest indeed.
Today's music isn't the thing that lends itself to demand
high fidelity. It's loud, noisy distorted, and somewhat out-of-tune.
Not like what we had in the 70's. The musicianship is not there either
for the most part, even though there are a few exceptions.
Ode to an era long past.
-=Jeff Gross=-
toggle quoted message
Show quoted text
On Fri, 4 Feb 2000, Mark Gurries wrote: From: Mark Gurries <gurriesm@...>
Asking
-
New Retail
-
Condition
10/10 AGS
Days/Views
15 / 425
Shipping
Plus shipping
FYI
Posted on the Audiogon Auction site
----------------------------------
We have just been told from reliable sources that Audio Magazine (owned
by Hachette Filipacchi) will cease publication with their February/March
issue that has just come off the presses. The reason generally seems to
stem around the lack of advertising funds. Our sources also seem to know
that Michael Riggs and Corey Greenberg will go back to another magazine
while Ken Kessler's world renown writings will continue to grace the
pages of various magazines worldwide. The remainder of the staff's
future is unknown. The news about Audio Magazine was announced to the
staff late yesterday afternoon.
--------------
I personally have not subcribed to this magazine since High School. But
I remember the old days when they had articals on how to build stuff. I
always like it better than Stereo Review. I like High Fedility the
least. I was into the reports and technical side of stuff. My likes and
dislikes were based on that point of view.
Best Regards,
Mark Gurries (replying from home)
----------------------------------------------------------
Battery Charging and Power Systems Application Engineer
Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035
WRK(408) 954-8400 x3864 Email: gurriesm@...
FAX(408) 428-9413 WebSite:
----------------------------------------------------------
Work & Hobby Related Website Info:
Smart Battery Charging Systems:
Model Railroad Club:
----------------------------------------------------------
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|
Asking
-
New Retail
-
Condition
10/10 AGS
Days/Views
15 / 425
Shipping
Plus shipping
FYI
Posted on the Audiogon Auction site
----------------------------------
We have just been told from reliable sources that Audio Magazine (owned
by Hachette Filipacchi) will cease publication with their February/March
issue that has just come off the presses. The reason generally seems to
stem around the lack of advertising funds. Our sources also seem to know
that Michael Riggs and Corey Greenberg will go back to another magazine
while Ken Kessler's world renown writings will continue to grace the
pages of various magazines worldwide. The remainder of the staff's
future is unknown. The news about Audio Magazine was announced to the
staff late yesterday afternoon.
--------------
I personally have not subcribed to this magazine since High School. But
I remember the old days when they had articals on how to build stuff. I
always like it better than Stereo Review. I like High Fedility the
least. I was into the reports and technical side of stuff. My likes and
dislikes were based on that point of view.
Best Regards,
Mark Gurries (replying from home)
----------------------------------------------------------
Battery Charging and Power Systems Application Engineer
Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035
WRK(408) 954-8400 x3864 Email: gurriesm@...
FAX(408) 428-9413 WebSite:
----------------------------------------------------------
Work & Hobby Related Website Info:
Smart Battery Charging Systems:
Model Railroad Club:
----------------------------------------------------------
|
Boy if we could find replacement slider pots, that would be marvelous!
I found the company that made the original pots, but we'd need to order
like 1000 of them.
-=Jeff Gross=-
toggle quoted message
Show quoted text
On Wed, 2 Feb 2000 sstinc wrote: From: sstinc:"First sstinc:Last" <jamesbongiorno@...>
Dear Folks,
To those of you who need GENERIC parts, you can find almost anything from
jobbers, distributors, etc. The power switch for the XXX should be rated at
TV-7 and almost anything will work fine as long as the mounting fits. If I
remember correctly, the switch was mounted with 2 screws and had a rectangular
spring loaded plunger. The size has been a world standard for about thirty
years so that push-buttom know manufacturers didn't go crazy. When I get moved
and resettled, I will look into my parts bins because I believe I have a whole
bunch of switches and will supply them to anyone at nominal cost.
James Bongiorno
gurriesm wrote:
From: gurriesm <gurriesm@...>
dhobbs@... wrote:
From: dhobbs@...
Hello members,I was wondering if anyone out might know where I could find
the ON/Off switch for the Mark30.I've looked everywhere. Thankyou D Hobbs
I not aware of anyone having located parts. Many of us are looking. But
until we know who to ask in terms of who last owned all the part, we do
not have a clue. Generally, you have to buy another unit and use that
one for parts. You might find a unit on EBAY and go in with someone on
this growing list SAE_TALK of members for the purpose of getting parts.
hey I do have an Idea. Check out the links area for this list. There is
a website link to a repair shop that is specializing in GAS products
repair. (I sent them an invite with no response awhile back.) They might
have some parts that might work. Due to the common engineering heritage,
they probably would have a lot of common electrical parts.
By the way, membership is growing. Last time I check it was 16 members.
We are also building a good core of technical experts on line too.
Best Regards,
Mark Gurries
----------------------------------------------------------
Battery Charging and Power Systems Application Engineer
Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035
WRK(408) 954-8400 x3864 Email: gurriesm@...
FAX(408) 428-9413 WebSite:
----------------------------------------------------------
Work & Hobby Related Website Info:
Smart Battery Charging Systems:
Model Railroad Club:
----------------------------------------------------------
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|
On the subject of spare parts, A guy I have known for years
has a surplus electronics place. I've been able to either replace or even
repair most switches to restore them to like new condition.
You can send me detailed electronic photos via e-mail, with basic
measuremnts, I can probably locate parts. It's not a promise, but I can
take a good stab at it.
toggle quoted message
Show quoted text
On Wed, 2 Feb 2000, gurriesm wrote: From: gurriesm <gurriesm@...>
dhobbs@... wrote:
From: dhobbs@...
Hello members,I was wondering if anyone out might know where I could find
the ON/Off switch for the Mark30.I've looked everywhere. Thankyou D Hobbs
I not aware of anyone having located parts. Many of us are looking. But
until we know who to ask in terms of who last owned all the part, we do
not have a clue. Generally, you have to buy another unit and use that
one for parts. You might find a unit on EBAY and go in with someone on
this growing list SAE_TALK of members for the purpose of getting parts.
hey I do have an Idea. Check out the links area for this list. There is
a website link to a repair shop that is specializing in GAS products
repair. (I sent them an invite with no response awhile back.) They might
have some parts that might work. Due to the common engineering heritage,
they probably would have a lot of common electrical parts.
By the way, membership is growing. Last time I check it was 16 members.
We are also building a good core of technical experts on line too.
Best Regards,
Mark Gurries
----------------------------------------------------------
Battery Charging and Power Systems Application Engineer
Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035
WRK(408) 954-8400 x3864 Email: gurriesm@...
FAX(408) 428-9413 WebSite:
----------------------------------------------------------
Work & Hobby Related Website Info:
Smart Battery Charging Systems:
Model Railroad Club:
----------------------------------------------------------
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|
If you can take a picture of the switch, removed from the unit, and
send me some basic measurements, I can probably locate it for you.
-=Jeff Gross=-
toggle quoted message
Show quoted text
On 2 Feb 2000 dhobbs@... wrote: From: dhobbs@...
Hello members,I was wondering if anyone out might know where I could find the ON/Off switch for the Mark30.I've looked everywhere. Thankyou D Hobbs
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|
sstinc:"First sstinc:Last"
Dear Folks,
To those of you who need GENERIC parts, you can find almost anything from
jobbers, distributors, etc. The power switch for the XXX should be rated at
TV-7 and almost anything will work fine as long as the mounting fits. If I
remember correctly, the switch was mounted with 2 screws and had a rectangular
spring loaded plunger. The size has been a world standard for about thirty
years so that push-buttom know manufacturers didn't go crazy. When I get moved
and resettled, I will look into my parts bins because I believe I have a whole
bunch of switches and will supply them to anyone at nominal cost.
James Bongiorno
gurriesm wrote:
toggle quoted message
Show quoted text
From: gurriesm <gurriesm@...>
dhobbs@... wrote:
From: dhobbs@...
Hello members,I was wondering if anyone out might know where I could find
the ON/Off switch for the Mark30.I've looked everywhere. Thankyou D Hobbs
I not aware of anyone having located parts. Many of us are looking. But
until we know who to ask in terms of who last owned all the part, we do
not have a clue. Generally, you have to buy another unit and use that
one for parts. You might find a unit on EBAY and go in with someone on
this growing list SAE_TALK of members for the purpose of getting parts.
hey I do have an Idea. Check out the links area for this list. There is
a website link to a repair shop that is specializing in GAS products
repair. (I sent them an invite with no response awhile back.) They might
have some parts that might work. Due to the common engineering heritage,
they probably would have a lot of common electrical parts.
By the way, membership is growing. Last time I check it was 16 members.
We are also building a good core of technical experts on line too.
Best Regards,
Mark Gurries
----------------------------------------------------------
Battery Charging and Power Systems Application Engineer
Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035
WRK(408) 954-8400 x3864 Email: gurriesm@...
FAX(408) 428-9413 WebSite:
----------------------------------------------------------
Work & Hobby Related Website Info:
Smart Battery Charging Systems:
Model Railroad Club:
----------------------------------------------------------
--------------------------- ONElist Sponsor ----------------------------
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------------------------------------------------------------------------
Community email addresses:
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|
dhobbs@... wrote: From: dhobbs@...
Hello members,I was wondering if anyone out might know where I could find
the ON/Off switch for the Mark30.I've looked everywhere. Thankyou D Hobbs
I not aware of anyone having located parts. Many of us are looking. But until we know who to ask in terms of who last owned all the part, we do not have a clue. Generally, you have to buy another unit and use that one for parts. You might find a unit on EBAY and go in with someone on this growing list SAE_TALK of members for the purpose of getting parts. hey I do have an Idea. Check out the links area for this list. There is a website link to a repair shop that is specializing in GAS products repair. (I sent them an invite with no response awhile back.) They might have some parts that might work. Due to the common engineering heritage, they probably would have a lot of common electrical parts. By the way, membership is growing. Last time I check it was 16 members. We are also building a good core of technical experts on line too. Best Regards, Mark Gurries ---------------------------------------------------------- Battery Charging and Power Systems Application Engineer Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035 WRK(408) 954-8400 x3864 Email: gurriesm@... FAX(408) 428-9413 WebSite: ---------------------------------------------------------- Work & Hobby Related Website Info: Smart Battery Charging Systems: Model Railroad Club: ----------------------------------------------------------
|
Hello members,I was wondering if anyone out might know where I could find the ON/Off switch for the Mark30.I've looked everywhere. Thankyou D Hobbs
|
To Mark & group,
I'm pleased to have just joined your community. I was afraid I might be
subjected to a torturous initiation ritual and be forced to clean ALL of the
relay contacts in a P101 preamp! Honestly though, I've already done just that
recently. A very good friend was kind enough to spot a sickly P101 while
vacationing in FL and hauled it all the way back to the northwest for me.
I've completed the refurb and it turned out quite well!
Jeff Gish
|
The only thing you need to consider on interconnects is your environment. If you live in a high humidity condition (above 60% relative), it's best to consider maybe a gold end connector. Other things that effect connections is dust, airborne dirt (especially from cooking), and that sort of thing. If your system is in a room supplied solely by air conditioning and heating, (filtered air). There's usually less corrosion and buildup on the connectors. If you are a fresh-air kinda guy like myself, consider the gold ended cabling, and every year or so you might want to treat your connectors with a cleaning solvent. The best one is Deoxit from Caig Labs. (www.caig.com) Hope that answers your questions. On 2 Feb 2000 tbirdsc@... wrote: From: tbirdsc@...
jeff and james
do you hold the same onpinion on interconnects as you do on speaker
cabling?
jim
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-=Jeff Gross=- 450 W. Byberry Rd. #T22 Philadelphia, PA 19116 (215) 464-6077 [voice] (520) 752-4371 [E-fax]
|
jeff and james
do you hold the same onpinion on interconnects as you do on speaker
cabling?
jim
|
Just a quick note to ask, if anyone comes across a non-working E101 equalizer,
please let me know. I'm in dire need of some parts off the pcb, so cosmetics
are not an issue, doesn't even need to have all the case or face plate.
Thanks
Luther
|
Re: 2200 schematic found!
James is 100% correct. As a designer and builder of my own amplifiers in
the past, I found the bias measuremnts to be only a rough adjustment so
as not to over-current the semiconductor devices initially.
Typically on the initial powerup of the unit (one that has never been
powered up before, ever), you set the bias current as low as possible.
You then bring it up on the low side of the rating of the circuit, hook up
your freq. generator and scope, then fine tune it from there.
I usually run a dummy load using an actual speaker in a sealed box with
lots of soundproofing in it. I run the initial test at 1000 hz, adjust
crossover distortion as low as possible and monitor current as well. Do
this initially at HALF the rated output, then try increasing. In proven
designs, you might not need to be so very cautious.
Then you want to try various frequencies, Very Low, very high, Do this at
about 75% rated output. When you are happy, you can go back to the
1000hz, go to the rated output and do the fine adjustment. If it doesn't
blow up...your design is successful. Be mindful that not many designs hold
their stability all the way up to rated output.
I then do a further burn-in by playing into a resistive dummy load,
pulsating driving wide dynamic range music for a couple of hours, at near
rated limits. I then monitor closely the heat dissapation and current.
This final test has caught many amps that passed the frequency generators
with flying colors.
I haven't put the 2201 through this as it sounds great and I have a rule
of not fixing what works.
-=Jeff Gross=-
|
Re: 2200 schematic found!
sstinc:"First sstinc:Last"
Dear Mark,
It's not so much as finding ways to reduce distortion but rather, examining
history. Most designers "officially" rate the THD much higher than it actually
is. This is done to cover the oddball unit that gets through production when
maybe a tech stayed out the night before or had too much to drink, etc. Over
time, the true history of the product performance shows that the spec can be
lowered because when properly adjusted, all units will still fall below the
new spec.
Incidentally, the correct way to set the bias is by viewing the X-Y distortion
residue output and NOT the quiescent bias current. There is always a wide
variability in the characteristics of devices and so one bias level which is
correct for one unit may indeed allow large nothches in another unit. As long
as the thernal tracking is sufficient to cover all variations, there will be
no problems. X-Y viewing is an east coast method created by the great Sid
Smith at Marantz. It seems that the west coast boys (still) don't seem to
understand the importance of viewing measurements this way where you can see
not only the total distortion, but also, the phase of the lobes and the
quadrants. I've given up trying to teach all of my acquaintences this
technique because they just don't WANT to understand it. They continue to live
happily in the stone age. If anyone wants to discuss this with me, I'll be
happen to explain it. My number is 805 963 1122. My e-mail is
jamesbongiorno@....
James Bongiorno
gurriesm wrote:
toggle quoted message
Show quoted text
From: gurriesm <gurriesm@...>
jgross@... wrote:
From: jgross@...
HEY! It's tax time, and I'm digging through stuff, and what do I find?
a 2200 Schematic sent to me about 3 years ago in the mail. One page is
the Amplifier (one channel shown only), the next page is the LED Meters,
and the 3rd page is the power supply config. WOW! Someone even marked it
up with the replacement semiconductors.
My question... Is the 2200 schematic similar to the 2201 Amp I own?
What's the differences if any (besides cosmetics). I do not know myself. I know from what James said, that the circuits
generally stayed the same. I do not have my SAE spec info with me, but I
think the THD spec of the 2201 is like 0.03%. I do not think it is below
0.01%. If its 0.03%, it simply may be more of a biasing and feedback
issue. I would know a little more by looking at the schematic and
feedback design. The other clues can be found in a service manual which
would talk about the proper biasing values which is also a clue.
Would you be interested in selling me a copy of the schematic?
James, how do you think SAE reduced THD in the later models.
Best Regards,
Mark Gurries
----------------------------------------------------------
Battery Charging and Power Systems Application Engineer
Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035
WRK(408) 954-8400 x3864 Email: gurriesm@...
FAX(408) 428-9413 WebSite:
----------------------------------------------------------
Work & Hobby Related Website Info:
Smart Battery Charging Systems:
Model Railroad Club:
----------------------------------------------------------
--------------------------- ONElist Sponsor ----------------------------
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<a href=" ">Click Here</a>
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|
Re: 2200 schematic found!
Sell, Hell, I'll make a copy for you and turn it into a PDF file.
I'll then e-mail it, or try to post it on the SAE talk file area.
Also in PDF, I have the 180 / 1800 Para EQ manual.I was going to upload
that, but it's like 200k in size, so I'll e-mail it to anyone who may need
it.
-=Jeff=-
toggle quoted message
Show quoted text
On Tue, 1 Feb 2000, gurriesm wrote: From: gurriesm <gurriesm@...>
jgross@... wrote:
From: jgross@...
HEY! It's tax time, and I'm digging through stuff, and what do I find?
a 2200 Schematic sent to me about 3 years ago in the mail. One page is
the Amplifier (one channel shown only), the next page is the LED Meters,
and the 3rd page is the power supply config. WOW! Someone even marked it
up with the replacement semiconductors.
My question... Is the 2200 schematic similar to the 2201 Amp I own?
What's the differences if any (besides cosmetics). I do not know myself. I know from what James said, that the circuits
generally stayed the same. I do not have my SAE spec info with me, but I
think the THD spec of the 2201 is like 0.03%. I do not think it is below
0.01%. If its 0.03%, it simply may be more of a biasing and feedback
issue. I would know a little more by looking at the schematic and
feedback design. The other clues can be found in a service manual which
would talk about the proper biasing values which is also a clue.
Would you be interested in selling me a copy of the schematic?
James, how do you think SAE reduced THD in the later models.
Best Regards,
Mark Gurries
----------------------------------------------------------
Battery Charging and Power Systems Application Engineer
Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035
WRK(408) 954-8400 x3864 Email: gurriesm@...
FAX(408) 428-9413 WebSite:
----------------------------------------------------------
Work & Hobby Related Website Info:
Smart Battery Charging Systems:
Model Railroad Club:
----------------------------------------------------------
--------------------------- ONElist Sponsor ----------------------------
Books, music, auctions and more! Amazon.com.
<a href=" ">Click Here</a>
------------------------------------------------------------------------
Community email addresses:
Post message: SAE_Talk@...
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List owner: SAE_Talk-owner@...
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|
Re: 2200 schematic found!
jgross@... wrote: From: jgross@...
HEY! It's tax time, and I'm digging through stuff, and what do I find?
a 2200 Schematic sent to me about 3 years ago in the mail. One page is
the Amplifier (one channel shown only), the next page is the LED Meters,
and the 3rd page is the power supply config. WOW! Someone even marked it
up with the replacement semiconductors.
My question... Is the 2200 schematic similar to the 2201 Amp I own?
What's the differences if any (besides cosmetics). I do not know myself. I know from what James said, that the circuits generally stayed the same. I do not have my SAE spec info with me, but I think the THD spec of the 2201 is like 0.03%. I do not think it is below 0.01%. If its 0.03%, it simply may be more of a biasing and feedback issue. I would know a little more by looking at the schematic and feedback design. The other clues can be found in a service manual which would talk about the proper biasing values which is also a clue. Would you be interested in selling me a copy of the schematic? James, how do you think SAE reduced THD in the later models. Best Regards, Mark Gurries ---------------------------------------------------------- Battery Charging and Power Systems Application Engineer Linear Technology,1630 McCarthy Blvd, Milpitas, CA, 95035 WRK(408) 954-8400 x3864 Email: gurriesm@... FAX(408) 428-9413 WebSite: ---------------------------------------------------------- Work & Hobby Related Website Info: Smart Battery Charging Systems: Model Railroad Club: ----------------------------------------------------------
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