[Vintage-Audio] Conversion Of Vinyl

Sat Apr 19 21:25:59 2003

Here is an excellent discussion of the issues:
http://www.vadlyd.dk/English/RIAA_and_78_RPM_preamp.html

WB

Charlie Dumar wrote:
> If you have a hi-speed connection I can scan some stuff on curves for you and 
> email them.  If not I can xerox and snail mail them to you.
> 
> One way to compensate is to put an equalizer in the tape loop.  One problem 
> arises with the phono preamp.  Since it is set for the standard RIAA curve the 
> equalizer has to be set differently than the curves for the old records.  In 
> short you have to cancel the RIAA curve and at the same time add the other 
> curve.
> 
> Another way is to build a preamp into the equalizer but have the equalizer with 
> a totally flat response and simply set the equalizer to old curve of the record 
> in use.
> 
> The info I have has a real decent tube preamp project that covers all the 
> curves and is worth looking at.  The filter networks themselves are also shown.
> 
> The total pages are maybe 10-15 or so.
> 
> Charlie, W2KNL
> 
> 
> -----Original Message-----
> From:	Duane Fischer, W8DBF [SMTP:[email protected]]
> Sent:	19 April, 2003 19:42
> To:	[email protected]
> Subject:	Re: [Vintage-Audio] Conversion Of Vinyl
> 
> Charlie, 	
> 	
> 1. No, all of my systems are dedicated. I hate cable! The entire stereo system
> is music, no TV or anything else run through it. It is a little sound studio.	
> 	
> 2. The vintage stereo system, the H. Scott, is dedicated as well. It has its 
> own
> speaker system.	
> 	
> 3. The surround sound system is also just for the Pioneer big screen TV, only
> Laser Disks and DVD and VHS run through it.	
> 	
> 4. The Pioneer has its own Sony DSS system, as does the one in the bedroom. 	
> 	
> 5. A good point on recording vinyl that was recorded as mono. I need to do
> precisely what you suggested. I seldom record from a mono vinyl album, but 
> every
> now and then I do. I have done so with hundreds of 45 rpm singles. Most were
> remastered, so I got away with it. 	
> 	
> 6. I am not sure what, if anything, one can do about the different equalization
> curves used in the forties and fifties. Somebody must have solved this issue.
> The National Library of Congress, for example. They are busily working on the
> "Save Our Sound" project, and many of those recordings are on reel to reel 
> tape,
> vinyl and even cylinders. Wonder how they got around this?	
> 	
> Duane W8DBF 	
> 
> 
> ----------
> From: Charlie Dumar <[email protected]>
> To: '[email protected]'
> Subject: RE: [Vintage-Audio] Conversion Of Vinyl
> Date: Saturday, April 19, 2003 11:34 AM
> 
> I use a stand alone deck for my conversions.  I have only 2 bits of advice.
> 
> If you have a cable converter connected to the same setup you use for recording 
> disconnect it from the system,  If you like to watch cable while recording use
> a different amp.  In my setup there was low hum levels in the recordings after
> much work it was traced to the cable digital box.  Nothing more than a ground
> loop.
> 
> If you do a lot of mono recordings get another cartridge and head and wire it
> for mono.  The recordings will sound better.
> 
> If you do any recording of material from 1947 to around 1955 remember that
> these recordings use a different equalization curve than the ones after 1955 of 
> so.  As a matter of fact there were 10 or so different equalizations used
> during the early days.
> 
> Charlie, W2KNL
> 
> 
> 
> -----Original Message-----
> From:	Duane Fischer, W8DBF [SMTP:[email protected]]
> Sent:	19 April, 2003 11:08
> To:	[email protected]
> Subject:	[Vintage-Audio] Conversion Of Vinyl
> 
> 
> 	
> Greetings All, 	
> 	
> This is a little too new, but still old, so pardon the stretch. 	
> 	
> I have been converting vinyl 33 1/3 rpm records to CD format without a
> computer.
> I have had extremely good success. However, this procedure is tedious, time
> consuming and requires a DAT deck. 	
> 	
> Are any of you using a stand alone CDR deck wired direct to the primary sound
> system? 	
> 	
> Here is one little trick that may help some of you salvage an otherwise
> unrecoverable recording. If a vinyl record has a scratch on it causing the
> stylus to stick, put a tiny drop of water on it. Let it expand and fill the
> grooves. many times this will allow the stylus to track through the area
> without
> sticking. However, there may be some noise, as the scratch is still there. 	
> 	
> I use an outboard graphic equalization unit to minimize specific frequencies
> when recording the vinyl to DAT or CD. Many times you can eliminate, or greatly
> reduce, the noise present from heavy play wear, minor scratches and so forth.
> Keeping in mind, that the depth to which the needle went, and the width of the
> grooves, has changed over the years.  	
> 	
> Duane W8DBF  	
> 
> _______________________________________________
> Home: http://mailman.qth.net/mailman/listinfo/vintage-audio
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: [email protected] **
> 
> _______________________________________________
> Home: http://mailman.qth.net/mailman/listinfo/vintage-audio
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: [email protected] **
> _______________________________________________
> Home: http://mailman.qth.net/mailman/listinfo/vintage-audio
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: [email protected] **
> 
> _______________________________________________
> Home: http://mailman.qth.net/mailman/listinfo/vintage-audio
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: [email protected] ** 
> 
>