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 Post subject: Looking for Repair Service in Portland OR
PostPosted: Nov Thu 28, 2019 11:14 pm 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
Hello out there.. first post. I have a 1957 Magnavox consolette TP262-C1 with Collaro Conquest turntable, original Ronette cartridge and tone arm. Problem is sound cutting in and out. According to seller; needle recently replaced, amp recapped and two new Motorola tubes installed. Have adjusted arm weight both ways, no difference. Have tried 78 needle, no difference. Suspect a short, but beyond my skill level. Attached photo looks like an equipment replacement. I covered the copper wire that is sticking out with electrical tape, no difference.
If anyone knows someone qualified to work on this in the Portland OR area, please let me know. Thank you.


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CACA665E-BE67-4F54-A6AE-E1D6B143FAEA.jpeg
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Last edited by Beanie on Nov Fri 29, 2019 4:32 pm, edited 1 time in total.
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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Nov Fri 29, 2019 5:04 am 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 1980
Location: 77001
Hello and welcome.

Please post a clear photo of the phono cartridge
that is in the tonearm.
Also, the Magnavox with cabinet lid open.

Ronette crystal cartridges will degrade over time,
and frequently start to fail. If you have a crystal cart,
you may need the old one replaced with a new ceramic one.

E.g. a new Pfanstiehl P-228 stereo cart. It can be jumpered
for use in a mono amplifier.

Hotwax

Try these guys out for some local repair help:

http://nwvrs.org/Resources/resources.html


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Nov Fri 29, 2019 6:13 am 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
Thanks for the welcome and the quick reply Hotwax. I sent NWVR an email using their contact page info. Here are a few more pics of the Magnavox, as requested. I had suspected the cartridge as well and have asked the seller for a replacement under his warranty that came with the unit. If I tap lightly on the headshell when the sound cuts out (cringe), it often brings the sound level back to normal, albeit temporarily. Once in awhile I get lucky and get to hear a few songs straight thru at normal volume. Sure sounds nice when it’s working. The cartridge you mentioned is available on voiceofmusic.com, correct? Do you know of any YouTube links that show how to replace a cartridge on this old of a model? I may be able to do that myself. Thanks!


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Last edited by Beanie on Nov Fri 29, 2019 10:09 pm, edited 1 time in total.
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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Nov Fri 29, 2019 4:30 pm 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
Here’s another


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Nov Fri 29, 2019 5:43 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2461
Location: Haledon NJ USA
That looks like a BSR TC8M cartridge.

You may want to switch to a cartridge that's more friendly to stereo records.


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Nov Fri 29, 2019 7:01 pm 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
Ken, I agree. It does look a lot like a BSR. Thanks for that catch! So that means the seller’s ad was wrong on that part. :cry: Do you have any recommendations on a suitable replacement, or should I just contact Gary at Voice of Music? You are so right about wanting to equip with something that won’t tear up my vinyl, I remember that all too well.

Unless I’m not thinking this through enough, the swap out seems would be quick and easy on this, remove a screw or two out of the head shell, swap cartridges and reattach screws, right?

Thanks for all the help and any additional info. Looking forward to being able to actually use this nice piece of equipment.


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Nov Fri 29, 2019 11:25 pm 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
More info on the Mysterious Magnavox:

I contacted Gary at VOM. He asked for the number on the side of the cartridge. I couldn’t see any numbers by just looking, only some kind of stamp mark in yellow paint, so I removed the cartridge from the headshell and turned it around, but saw no numbers at all. I put it back in and decided to test the volume level again. This time all I got was a loud pop when I tapped on the headshell screw. There is consistent low volume at 3/4 on the volume knob. I don’t know if this is normal in a situation like this, but suffice to say the problem has gotten progressively worse, each day I turn it on and try different things.

Also, it may be noteworthy, I bought the unit online as ‘seller refurbished’ and it was shipped FedEx from Chicago to Portland OR a week ago.

If this is not normal behavior of a bad cartridge/needle, I may need to locate a service center after all.


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Nov Sat 30, 2019 9:08 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 2461
Location: Haledon NJ USA
Beanie wrote:
Do you have any recommendations on a suitable replacement,...


I think the Pfanstiehl P-228, wired for mono, that Hotwax mentioned above would do the job nicely.

https://www.thevoiceofmusic.com/catalog ... 0to%201.3v

Beanie wrote:

Also, it may be noteworthy, I bought the unit online as ‘seller refurbished’ and it was shipped FedEx from Chicago to Portland OR a week ago.


An old cartridge can fail at any time, these things happen.


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Sun 01, 2019 2:07 am 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 1980
Location: 77001
Beanie wrote:
I removed the cartridge from the headshell and turned it around, but saw no numbers at all. I put it back in and decided to test the volume level again. This time all I got was a loud pop when I tapped on the headshell screw. There is consistent low volume at 3/4 on the volume knob. I don’t know if this is normal in a situation like this, but suffice to say the problem has gotten progressively worse, each day I turn it on and try different things.

An easy troubleshoot to determine how the amplifier is
functioning:

1.One side of the cartridge lead will be the "hot" active signal lead.

2. With the amplifier powered on, take a small screwdriver and test
each tonearm cartridge lead. You may have to remove the leads'
clips from the tonearm cart's prongs.

3. The hot signal wire will give a loud buzz when it is touched.

4. Once this is located, you can adjust the volume control up.

5. If the amp is working properly, the buzz's volume will increase
with the volume control increase, and the cartridge is very suspect.

6. If volume and buzz are not proportional, I would have someone look
over the amplifier to verify the "repair" work was done properly.
H


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Sun 01, 2019 4:45 am 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
I think the hot lead is the black and red twisted wires, right? The other one is a silver thing that looks like a ground wire. When I pick up the tone arm by pinching either side of the headshell it buzzes and the buzzing is louder when I turn the volume up. Does that count as a good test of the amp or do I still need to touch the hot wire with a screwdriver. :shock:

Thanks you guys for being so patient and helpful :oops: ::: sorry I hafta be here, but I’d really love to get this baby going. I found one shop in Portland and it had many bad reviews on Yelp. I may be on my own and attending the Seat of Your Pants school.


Attachments:
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8BEAFFA4-AC27-4576-9012-ECB8677D61D3.jpeg [ 775.18 KiB | Viewed 1538 times ]
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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Sun 01, 2019 4:48 am 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
Ken Doyle wrote:
Beanie wrote:
Do you have any recommendations on a suitable replacement,...


I think the Pfanstiehl P-228, wired for mono, that Hotwax mentioned above would do the job nicely.

https://www.thevoiceofmusic.com/catalog ... 0to%201.3v

Beanie wrote:

Also, it may be noteworthy, I bought the unit online as ‘seller refurbished’ and it was shipped FedEx from Chicago to Portland OR a week ago.


An old cartridge can fail at any time, these things happen.


Thanks for letting me know about old cartridge failing at any time... that helps. I’ve been digging around learning about crystal cartridges and am fascinated by the idea of growing your own. Wow... will wonders ever cease?


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Sun 01, 2019 5:44 pm 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 1980
Location: 77001
Beanie wrote:
I think the hot lead is the black and red twisted wires, right? The other one is a silver thing that looks like a ground wire. When I pick up the tone arm by pinching either side of the headshell it buzzes and the buzzing is louder when I turn the volume up. Does that count as a good test of the amp or do I still need to touch the hot wire with a screwdriver. :shock:
Thanks you guys for being so patient and helpful :oops: ::: sorry I hafta be here, but I’d really love to get this baby going. I found one shop in Portland and it had many bad reviews on Yelp. I may be on my own and attending the Seat of Your Pants school.

1. Either the red or black lead will be positive. But the amp response is correct, so on
to replacing the cartridge.

2.You may have to get a bit creative in replacing the old cart with a
new ceramic one, but many people have done it here.
I would send Gary at The V of Music some photos, and indicate that
you would like one of the Pfanstiehl kits that will enable you to
create a mount for the new cartridge.

3. The old BSR cart should be obvious in how to remove it.
From what I can see, I would start with the flip over knob.
It should have a very small screw holding it to
the threaded shaft.
That tension spring will just come off when the knob is removed.

Be most careful of pulling on the tonearm cartridge wires,
so you don't break the clips off.
I would gently pry off the clips using a thin bladed pocket knife,
or similar.

4. Take your time, and if unsure, post a photo and your questions.
I repaired one of these changers for an acquaintance that was in
the same Magnavox Consolette. That unit sounded very good.
You'll be very satisfied when it's back in op condition.
H


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Mon 02, 2019 12:40 am 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
Thank you Hotwax for the steps to removing existing cartridge.

Gary from VOM has replied back to my email and said without numbers from the existing cartridge (it doesn’t have any numbers on it), even with a photo of it, he then would need the part number for the original cartridge in order to suggest a suitable replacement. He provided several links to websites with manuals. I found this part number list for the Collaro Conquest. Is “cartridge socket” what they called the original cartridge? Refer to the Pick-Up Arm Assembly section, part number 3440 in the attached photo.


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Mon 02, 2019 2:10 am 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 1980
Location: 77001
Beanie wrote:
Thank you Hotwax for the steps to removing existing cartridge.
Is “cartridge socket” what they called the original cartridge?
Refer to the Pick-Up Arm Assembly section, part number 3440 in the attached photo.

1.No, I believe that term cart socket is for the removable cartridge head-shell.

2. Below is a BSR cart data sheet from the V of M. See the substitute cart
replacement KCCA kit notes on that page.
Then go to the V of M website for a look at that option.

Your original cart may have been of a higher output voltage, but even so,
the amp in your Magnavox has plenty of power.
H

http://thevoiceofmusic.com/catalog/part ... ategories=


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Mon 02, 2019 2:47 am 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
That looks like the one! There’s a couple on eBay right now. Is there a concern for damaging LPs with the weight required for tracking on this one? 10-12 grams vs. 8 grams or whatever?

Also, I’ve looked at videos on how to set the tone arm weight and cartridge angle on a new cartridge. Not sure if that applies to this one? Looks kinda complicated and like special tools are required. Maybe that’s for newer stereo cartridges on newer systems? My brain is getting full... haha!


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Mon 02, 2019 4:04 am 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 1980
Location: 77001
Beanie wrote:
That looks like the one! There’s a couple on eBay right now. Is there a concern for damaging LPs with the weight required for tracking on this one? 10-12 grams vs. 8 grams or whatever?
Also, I’ve looked at videos on how to set the tone arm weight and cartridge angle on a new cartridge. Not sure if that applies to this one? Looks kinda complicated and like special tools are required. Maybe that’s for newer stereo cartridges on newer systems? My brain is getting full... haha!

1. I would not buy a new old stock crystal cartridge.
The crystal degrades and it might work for a day, a year, or 1 hour.
Better to take the effort to replace with the one I posted about.

2. Here is a thread with some great photos of your style Collaro and
the adjustment locations. Turning adjustment counter-clockwise
will increase the tracking force, per the Collaro service literature.
The other style tonearm uses a counter-balance spring set-up.
Let us know which tonearm you have via a photo.

viewtopic.php?t=218789

3. Setting the tonearm mass should be relatively easy, with a
simple tool. Correct, that you are not adjusting a 1-2 gram
modern turntable tonearm. Do some searches for the simple tool.

4. Each cartridge has a recommended tracking mass set by
the manufacturer. Those crystal carts were meant to track at
6 to 10 grams, depending on design.
The new ceramic stereo Pfanstiehl is set for 4 to 8 grams tracking
force.

5. Get one thing done at a time. Concentrate on getting the old
cart out of the tonearm for now.
Review the posts here, to avoid duplicate queries, and to
use for reference.
Hotwax


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Mon 02, 2019 7:16 am 
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Joined: Nov Thu 28, 2019 10:54 pm
Posts: 12
Here is the removed cartridge, yay! The red wire clip came off pretty easily, like almost finger easy. :shock: The black wire clip took some very careful finagling with the pocket knife.

Also the under and top side of tone arm, looks like it has the counter balance spring. Moving the screw in the slider towards the back part of the tone arm increases weight, right?

What is that other screw on the slider? The seller told me that one is the one that adjusts the tone arm weight, but I didn’t think it made a difference when I adjusted it either way... kinda hard to know with a bad cartridge.

Off to look for a balancing tool... and work out the details with ordering that stereo ceramic cartridge.

Thanks again!


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Mon 02, 2019 4:36 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 1980
Location: 77001
Beanie wrote:
Also the under and top side of tone arm, looks like it has the counter balance spring. Moving the screw in the slider towards the back part of the tone arm increases weight, right?

What is that other screw on the slider?

1. Yes, moving the screw holding the spring back loosens the
tension, and increases the tonearm weight/mass.
This is the ONLY adjustment for the tonearm cartridge tracking force.

2. From what I see, the other screw is a hold-down screw for the
housing of the tonearm mass adjustment screw assembly.
Keep that tightened.

3. Don't attempt any tonearm adjustments until the new cartridge is
installed.

4. Lift the platter mat carefully (if it is very pliable), to find the model #
of the Collaro record changer. Just lift the mat from the edge, going
around in a circle until you find the number. It may be on a paper tag,
or stamped.
You don't have to lift the mat up very high, just enough to see.
H


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Sat 14, 2019 7:21 am 
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Joined: Nov Thu 28, 2019 10:54 pm
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Just wanted to post a follow up... I received three different cartridge and need,e sets in the mail. One was the model mentioned in this thread, the other was an Astatic sent by the seller of the Magnavox and the other an Electro Voice 120 recommended by Gary at Voice of Music. I studied each one carefully and decided to install the EV 120 only because it was exactly like what I took out and it mounted in easily. I left out the washer shown in the picture above as it was used to help hold down the ground wire between the headshell and cartridge bracket. Even with Gary’s bracket kit, the original head shell screw was the only one that worked and it needed the extra clearance that the washer was taking up.
The result is good. There’s no more cutting out and I guess I discovered that one side of my Beatles White Album on white vinyl is kinda toasted cuz it skips a lot on the Magnavox. I fiddled with the tone arm weight a but, but could not improve by either adding more or reducing the weight. The replacement cartridge is NOS crystal and I believe it is sapphires. There is a distinct muddiness when I play rock and roll LPs pressed in the late 1960s. My 1963 Woody Herman Jazz LP sounds fantastic. I’ve yet to figure out what causes this difference in fidelity other than perhaps stereo vs mono recordings. At any rate, I’m happy for now. It’s a real pleasure to play the old albums in it. (Late 60s, early 70s] Someday when I find myself with extra time and patience, I will attempt finding a suitable bracket for mounting a higher quality cartridge.

Thanks for all the help and reassurance I received here. It really helped a lot!


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 Post subject: Re: Looking for Repair Service in Portland OR
PostPosted: Dec Mon 16, 2019 7:03 pm 
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Joined: Jun Sun 15, 2014 11:04 pm
Posts: 1351
Location: Coos Bay, Oregon
You are on the nose, your suspicion that the needle is a mono needle may be correct. Playing stereo recordings with a mono needle yields a muddy sound that responds a bit better when weight is added, though I do not recommend doing that at all. Playing a record that is mono with a stereo needle yields a very scratchy sound. That cartridge should have a choice of needle types available. Cheers, Russie


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