Date   

Re: Scott LT-112B rca jacks

Radu Bogdan Dicher
 

Doug,
The manual is available on Hifi Engine (free membership, etc. - if you're not using that repository). Upon a very cursory examination of a 76p manual I only see one set of outputs, which is volume controlled. 

Conventional wisdom says fixed outputs should be better, all else the same... (typically, less parts in the signal path). But I'd not hold this as ultimate truth, other factors come in  - one being that subjectively higher levels tend to "sound" better, while volume controlled outputs tend to have higher level at the "full on" end of the volume control - so I'd say just try and see what sounds best for you in your system.

Hope this helps a bit.
Radu. 

Virus-free. www.avg.com


On Mon, Jun 22, 2020 at 2:53 PM <feathed@...> wrote:
I just acquired a Scott LT-112B and have not found an owner's manual anywhere, so a stupid question.
I assumed the two sets of rca output jacks on the rear were one set fix and one variable. I tested to verify which were which and much to my chagrin they are both affected by the pots. What!? Which ones should I use for connections to a pre-amp? I just want the best sound I don't care what the level is. 
Thanks,
Doug


Scott LT-112B rca jacks

@feathed
 

I just acquired a Scott LT-112B and have not found an owner's manual anywhere, so a stupid question.
I assumed the two sets of rca output jacks on the rear were one set fix and one variable. I tested to verify which were which and much to my chagrin they are both affected by the pots. What!? Which ones should I use for connections to a pre-amp? I just want the best sound I don't care what the level is. 
Thanks,
Doug


Re: Marantz ST-6000 review and DIY

Eric
 

John, I just put your ST6000 comments and the DIY recipe up on TIC this morning when I saw Mac's request (no problem Mac, you actually didn't miss the obvious :) ), and I just went back to it and cleaned up some coding artifacts.  Please take a look and email me if I screwed up anything in the editing process.  Thanks -Eric


Re: Marantz ST-6000 review and DIY

Mac
 

I guess I missed the obvious eh?  

thanks everyone and it looks like some additional insight was given so it was definitely worthwhile asking. 

thanks
Mac


Re: Marantz ST-6000 review and DIY

rick.savas@...
 

Hello folks,

If anyone is interested, I recently designed an adapter pcb for a few types. I needed some sot-23-6 to 6-pin DIP adapters, as the DH-220C designs uses complementary dual jfets. While I was at it, I added a few other popular types that i could think of using one day like the Yamaha T-85's as JohnC mentions. Min order at jlcpcb, is 5 pcbs in the 100x100mm economy special deal price. Sorry no "V"scoring, but tons of small vias and 1/32" thick pcb, to make them easy to separate, some filing is required as I have done enough already :-)
So I have more than I would probably ever need. If interested let me know. I can always order more.
This pcb contains,
1) 39 of sot-23-6 to 6-pin DIP
2) 9 of soic-8 to 8-pin DIP, with a 0805 bypass cap across the supplies
3) 4 of 8-pin DIP to SIP-8, with a 0805 bypass cap across the supplies
4) 4 of soic-8 to SIP-8, with a 0805 bypass cap across the supplies
5) 4 of soic-8 to SIP-9, with a 0805 bypass cap across the supplies. For use with old JRC/NJR "S" package, that have pins 1,9 common for V+

Cheers
Rick

Rick


Re: Marantz ST-6000 review and DIY

John Carpanini
 

Hi Mac,
  I see that Bob has already posted links to the DIY and Review on the TIC and I just uploaded a few pics I had so that should get you up to date.

Some additional info that might make the DIY a little better/easier,  if you are considering the OpAmp update you may want to look at the adapters used in the Yamaha T-85 DIY, they are a better choice than the Brown Dogs since you can orient the pin header to allow better clearance to other board components, an issue on the 6000.  Here's a link:
https://www.ebay.com/itm/5-Pieces-SOP8-DIP8-TO-ZIP8-SIP8-PCB-JRC5532/111885452022?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Also I'd bypass the Composite signal path caps  with  some 0.047 polypro films, Wima MKP2 caps work well here.

Have fun, and post back with any questions.

Regards,
JohnC

 


6 photos uploaded #photo-notice

FMtuners@groups.io Notification <FMtuners@...>
 

Hello,

This is a notification to let you know that the following photos have been uploaded to the Marantz ST-6000 album of the FMtuners@groups.io group.

Uploaded By: John Carpanini <jacarp@...>

Cheers,
The Groups.io Team


Re: Marantz ST-6000 review and DIY

newaag
 

The DIY mode section of out TIC (tuner information center) has the info you are looking for - always look there first. Many files from this group have been moved there -
mods -
https://www.fmtunerinfo.com/DIY.html#ST6000
review -
https://www.fmtunerinfo.com/marantz.html
Bob


Re: The "Rodney Dangerfield" list of digital tuners

Peter Wieck
 

I would have nominated the Hafler DH330, but I have noticed that it is creeping up in price, with a fully functional unit reaching well over the $100 threshold. Given that they often have wonky displays (which typically does not interfere with performance) it is definitely a "try-before-you-buy" unit in any case. 


Re: The "Rodney Dangerfield" list of digital tuners

gpdavis2
 

Same with the earlier Sony digital tuners. Their first ones, the ST-J75 & J60 usually sell for <$100 and are great performers.
Glenn


Re: Marantz ST-6000 review and DIY

Mac
 

Hello 
I was wondering if the Marantz ST-6000 DIY recipe and pictures of the completed mods are available?  I've looked all over the websit and dont' see them


Re: The "Rodney Dangerfield" list of digital tuners

sedond
 

not surprising to me that the sony st-s550es sounds nice. i had an st-s730es that was also a top-notch performer, tho it typically sells for >$100.  and the 550es has very good specs...  there's one right now on ebay for $100 or obo if anyone is so inclined...

https://www.ebay.com/itm/333616707438

doug s.

On Sun, Jun 21, 2020 at 11:27 PM, David Kurek wrote:
I second the NAD but my new favorite is the Sony 550ES. They can be bought for around 100.00 and the sound compares well to the better tuners I've heard. Handles complex musical material like classical very well.


Re: The "Rodney Dangerfield" list of digital tuners

David Kurek <dknde@...>
 

I second the NAD but my new favorite is the Sony 550ES. They can be bought for around 100.00 and the sound compares well to the better tuners I've heard. Handles complex musical material like classical very well.


On Jun 21, 2020, at 7:05 PM, sedond via groups.io <sedond@...> wrote:

hi bob,

i hope you're well, staying safe and sane.

here's my contribution, off the top of my head:
- hitachi ft8000
- jvc fx1100bk (and tn?)
these are the equal to the tandberg 3001/3001a, imo.
- creek cas3140  (with the caveat that it really needs the din-to-two-rca cable set up because the standard rca output is too low, unless you have incredible gain on your preamp) this one is great, a tiny bit warm, but w/o sacrificing appreciable detail.
- nad 4300 - this one is a bit warmer than the creek; may give up a bit of detail, but some may actually prefer its smooth "nad trademark" (imo) sound.

doug s.

On Fri, Jun 19, 2020 at 02:27 PM, newaag wrote:
"Rodney Dangerfield, was an American stand-up comedian...was known for his self-deprecating one-liner humor, his catchphrase “I don't get no respect!”

Here's my list of digital tuners that usually "don't get no respect", but are actually, in my opinion, good units, especially in good shape under $100. Feel free to add you nominations to the list.

Sansui TU-S9 - sold about the same time frame as the TU-X1, it was just below it in the Sansui line up. It has blue GDT IF filters, and all examples I saw had very low distortion, and great reception. Only drawback - no narrow IF. Some older examples have one or two front panel pushbutton problems, but not too hard to fix for DIY repair by replacement. These no longer sell for dirt cheap, but are very affordable for the combination of looks, RF performance, and sound at or under $100.  

Kenwood - KT-9XG - Blue GDT If filters, wide / narrow IF, low distortion, lots of other features - similar circuits to the KT-815, including a pulse count detector. Somewhat rare, but if you find a relatively inexpensive one, check it out. It's better than almost all the later empty box digital tuners that it can easily be confused with. 
 
Fisher FM-2421 - A nice looking tuner, especially in the black version. Reportedly made by Sanyo. Two IF bandwidths, 4 gangs, well built with two shielded power transformers. This unit easily gets no respect and is lost in the sea of cheap digital tuners, so usually sells for $50 and under.    

Bob


Re: The "Rodney Dangerfield" list of digital tuners

sedond
 

hi bob,

i hope you're well, staying safe and sane.

here's my contribution, off the top of my head:
- hitachi ft8000
- jvc fx1100bk (and tn?)
these are the equal to the tandberg 3001/3001a, imo.
- creek cas3140  (with the caveat that it really needs the din-to-two-rca cable set up because the standard rca output is too low, unless you have incredible gain on your preamp) this one is great, a tiny bit warm, but w/o sacrificing appreciable detail.
- nad 4300 - this one is a bit warmer than the creek; may give up a bit of detail, but some may actually prefer its smooth "nad trademark" (imo) sound.

doug s.


On Fri, Jun 19, 2020 at 02:27 PM, newaag wrote:
"Rodney Dangerfield, was an American stand-up comedian...was known for his self-deprecating one-liner humor, his catchphrase “I don't get no respect!”

Here's my list of digital tuners that usually "don't get no respect", but are actually, in my opinion, good units, especially in good shape under $100. Feel free to add you nominations to the list.

Sansui TU-S9 - sold about the same time frame as the TU-X1, it was just below it in the Sansui line up. It has blue GDT IF filters, and all examples I saw had very low distortion, and great reception. Only drawback - no narrow IF. Some older examples have one or two front panel pushbutton problems, but not too hard to fix for DIY repair by replacement. These no longer sell for dirt cheap, but are very affordable for the combination of looks, RF performance, and sound at or under $100.  

Kenwood - KT-9XG - Blue GDT If filters, wide / narrow IF, low distortion, lots of other features - similar circuits to the KT-815, including a pulse count detector. Somewhat rare, but if you find a relatively inexpensive one, check it out. It's better than almost all the later empty box digital tuners that it can easily be confused with. 
 
Fisher FM-2421 - A nice looking tuner, especially in the black version. Reportedly made by Sanyo. Two IF bandwidths, 4 gangs, well built with two shielded power transformers. This unit easily gets no respect and is lost in the sea of cheap digital tuners, so usually sells for $50 and under.    

Bob


Re: No response from Bill Ammons

landrybts
 

I've also tried contacting him during the past couple of months, but haven't heard back.  I was interested in some Filter Adder boards (two filter version) and GDT ceramic filters SFELF10M7FA0G (two red dots at the top-left & top-center),  and SFELF10M7GA0G (red and white dots).


Re: Realistic TM-1000 Alignment/Service Manual?

MikeinLA
 

Thank you.  I just ordered the ebay one.  
Sam’s seems to list by model number "311981" rather than "TM-1000" which must be why it’s never come up in my searches.


Re: Realistic TM-1000 Alignment/Service Manual?

Sam Harrill
 

Mike-
The service instructions can be found in Sam's MHF-76. I happen to have a copy and can scan those pages for you. There is also a copy of the complete MHF-76 for sale (not by me) on eBay for $7.15 shipping incl. Your choice! :)
Sam in Midland
---- MikeinLA <mike90066@hotmail.com> wrote:

I've found the user manual with the schematic, but I can't find a Service Manual or Alignment instructions anywhere.
I've searched the forum and back in 2016 member "Norm" said he had a photofact, and member "RFM" said he had alignment instructions, are either of you still around?  I would love a copy.  Or any leads.

I'm a new member and I've got two TM-1000's with varying tuning challenges that haven't been solved with better antennas.  On the main one I can't consistently get the two commercial-free stations I want (88.1 and 91.5) to come in in stereo.  I built a 16 ft collinear antenna yesterday according to http://home.earthlink.net/~dsc560/antenna/PlainWireFancyReception.html with lengths optimized for 88.1 and that still can't get it in stereo, though the signal strength is now very strong on the meter on the front panel.  Other stations do stereo just fine.

Thank you.
Mike



Realistic TM-1000 Alignment/Service Manual?

MikeinLA
 

I've found the user manual with the schematic, but I can't find a Service Manual or Alignment instructions anywhere.
I've searched the forum and back in 2016 member "Norm" said he had a photofact, and member "RFM" said he had alignment instructions, are either of you still around?  I would love a copy.  Or any leads.

I'm a new member and I've got two TM-1000's with varying tuning challenges that haven't been solved with better antennas.  On the main one I can't consistently get the two commercial-free stations I want (88.1 and 91.5) to come in in stereo.  I built a 16 ft collinear antenna yesterday according to http://home.earthlink.net/~dsc560/antenna/PlainWireFancyReception.html  with lengths optimized for 88.1 and that still can't get it in stereo, though the signal strength is now very strong on the meter on the front panel.  Other stations do stereo just fine.

Thank you.
Mike



Re: Why I tune some stations only in mono with my HK TU915

Marc Legare
 

Yes, they are low powered stations but other lower powered stations are ok. My other tuner is a Rotel RT-2100. I didn't align it yet.


Re: Why I tune some stations only in mono with my HK TU915

 

Does the LOCK led come on for these problem stations?  On the stations where it does receive stereo, are they all equal or greater signal strength compared to the problem stations?  In other words, could it be strictly related to signal strength?

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