Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - Bill

Pages: [1] 2 3
1
Sightings / Magnavox and RCA.
« on: January 17, 2019, 09:47:26 AM »
I was just looking on Craig's List and spotted these two.  The Magnavox is just like the one I have, and refer to it as my "Mystery Magnavox".  Mine has the 9300 series amp, and would presume this one does as well.  Model ST657, I think!  :)

https://grandrapids.craigslist.org/fuo/d/grand-rapids-mid-century-modern/6794982008.html

https://holland.craigslist.org/fuo/d/holland-rca-victor-mark-ix-twin-stereo/6774271289.html

Bill

2
Magnificent Magnavox / The Fuse!
« on: January 10, 2019, 10:16:30 AM »
As most of you know I have a Magnavox Berkshire.  It's kind of my Concert Grand in Mono.  Earlier this year I finally got around to the usual tune up.  All capacitors were replaced, everything cleaned two and three times, tubes checked and all were good except the treble 6V6 was shorted.  It was replaced.  Changer serviced and new needle for the cartridge. At this point I need to mention I did not install a fuse, I did not have a fuse holder. :(  Once complete, it was time for it's maiden voyage.  The first thing I tried was the radio.  Nothing but noise on AM, which is normal around here.  FM was good, several stations, and they were clear, clean, sounded good, and they stayed put, no drifting.  :)  Next came the record player.  I'll start out by saying the changer was very smooth, it played two records without a hitch.  We will get to this part of the story later under changers on the forum.

Now for the good part.  While playing I noticed a noise coming from the speakers.  It was kind of a distortion/crackle/fuzzy/dirty record type of noise.  I knew the record was not the problem so I started my search.  As I was investigating I discovered it was a two part noise.  The crackle was also in the radio, only noticeable when the volume was turned down.  Radio has crackle, phono has it all.  Yippee!   At this point I needed to start over, so I pulled the amp and went back over my work.  Everything was good.  All replaced components were correct, and all solder joints solid.  I also need to mention I installed a fuse.  Next I started on the resistors.  Nothing really out of specks, but I replaced some important ones anyway.  Reinstalled the amp, and the crackle was still there.  It's tuner time, and I did the same thing to the tuner as I did to the amp.  Everything checked out, but instead of reinstalling the tuner I put it on the floor behind the cabinet.  Everything would reach and that way I could use the cabinet speakers.  At this point I decided to start tapping components to see if the crackle got worse.  The amp was quiet, but to my surprise when I started tapping around the tuner I had a microphonic noise.  It was noisiest around the 12AT7 tube.  I recleaned that tube socket, rechecked the tube and tried again.  Still there but better.  I tried another tube, still there.  At this point it was suggested that I try ground points and rivets on the chassis.  Not much change.   Next I recleaned all the tube sockets in both tuner and amp and made sure all tube socket pins were tight.  That made a difference.  It's still there, but minimal, and at this point will remain until I get time to reinvestigate.  Of course that did not fix the crackle.  I still have not found that, but you don't hear it as long as there is music playing.  Suggestions! 

Back to the other noises on phono setting.  I contacted Gary at VM, gave him the description of the noises, and his reply was yes, those are failing cartridge symptoms.  A new cartridge was ordered, installed, and those noises are gone.  ;D 

How you are probably wondering what this has to do with fuses!  Well....during the attempted diagnosing process I was frequently trying things.  System on, system off.  One night I got tired of looking for problems and just sat and listened to a couple of records.  When they were done I shut every thing down and went up to bed.  The next day when I turned the Berkshire on it blew the fuse.  What!!!  It was fine last night.  I replaced the fuse, and the second one blew.  :(  Discouraged, and still being a newbie when it comes to diagnosing, I contacted a good friend for help.  Over the phone, he walked me through step by step, what to look for.  After about two hours of checking pretty much everything in the amp, and not really finding anything, he asked if I had any extra rectifier tubes.  I need to add at the beginning of the diagnosing process, the original, tested good, rectifier tubes were pulled.  I said I had two that I could rob.  "Go get them" were his words, and so I did.  I installed the tubes, and with his suggestion, I also used the Variac to power it up.  Slowly I increased the voltage, fuse holding.  At full voltage, now blown fuse. Back down with voltage, back up again.  Fuse held.  At this point it was plugged into the wall socket direct, fuse held.  I was happier than happy.  My friends comment: "I have never seen that before, I would not have thought it".  He said he would put that in his memory bank, and suggested I do the same.  I thanked him profusely.  His parting words: "You need to write this up in the forum. That fuse saved your transformer, everyone needs to know".  So here it is.  I hope this helps reinforce just how important a little ole' fuse can be.  I'll never rebuild anything again with out one.

Bill

3
Chat / Thanksgiving!
« on: November 22, 2018, 06:56:22 AM »
Happy Thanksgiving everyone!  As we sit around the table today, family and friends, remember all the things we should be thankful for.  Loved ones, health, home, and this Country we live in.  Blessing to you all!

Bill


4
RCA / RCA model VCR-45
« on: November 12, 2018, 08:23:18 PM »
I need a little help!  I'm looking for service info/Sam's for my RCA model VCR-45.  The only thing I found was a reference to Sam's folder 569-14.  Not sure if this is correct or not.  Anyone know for sure?  On page 3 of my previous thread I have all the chassis numbers if that helps.

Thanks you,
Bill


5
Chat / RCA TV
« on: October 12, 2018, 06:29:28 PM »
I know this is not a TV site, but I spotted this on Craig's list and thought it was cool.  Especially since I have one just like it except Blonde.  Oh, by the way, it's not a color set.  It was RCA's top of the line around 1957-58.  It included a hifi speaker system, (woofer and 2 tweeters) and a place to plug in a phonograph. 

Bill

https://grandrapids.craigslist.org/ele/d/vintage-mid-century-1958-rca/6720147121.html

6
Sightings / 1963 Magnavox Stereo
« on: October 06, 2018, 08:03:01 AM »
I spotted this on Craig's list Grand Rapids Michigan. I thought it would spark some interest.  Take a look at all the photos and notice the warranty info.  It's dated August of 1963.  This has to be one of the last tube units Magnavox produced. 

https://grandrapids.craigslist.org/fuo/d/price-drop-mid-century/6707344020.html

Bill

7
RCA / RCA VCR45 page 3
« on: October 04, 2018, 02:35:38 PM »
I forgot, which is normal for me, to include the chassis numbers.
Tuner:  RC1192C
Pre-amp: RS179A
Amp: RS183A
Changer: RP215-1

This stereo was prewired for a reverb unit, which I thought it had but does not. It somehow feeds through the already components that are there.  My Motorola uses a separate amp and speakers. 

Bill


8
RCA / RCA VCR45 page 2
« on: October 04, 2018, 02:29:02 PM »
Here's the last two photos.

Bill

9
RCA / RCA VCR45
« on: October 04, 2018, 02:28:09 PM »
A few weeks ago I spotted an RCA 3 channel stereo on Craig's List.  I posted it on sightings hoping it would find a good home.  After watching it for the few weeks, I decided the good home should be mine.  ::)  It actually was in good shape.  Relatively clean, the normal scratches for it's age, etc.  I got it home, gave the cabinet a bath, pulled everything out for it's cleaning, and took a few photos.  The speaker cloth was cleaned as well but as you can see in the photo it did not help.  The dark speaker seems to show.  At this point it's clean and ready for an overhaul.  That will happen but down the road, as I have a few others that come first.   :)   Two more photos on another page.

Bill

10
Sightings / RCA Stereo
« on: September 12, 2018, 07:25:29 PM »
I spotted this beauty and thought I would share.  Good price, and should make someone a great stereo. 

Bill

https://lansing.craigslist.org/ele/d/antique-rca-victor-stereo/6683783417.html

11
Sightings / Magnavox Georgian
« on: July 29, 2018, 01:04:21 PM »

12
Magnificent Magnavox / Magnavox Berkshire
« on: July 22, 2018, 07:08:02 PM »
Today was a good day, I finally have my Magnavox Berkshire model 270CG up and playing.  :)  At least the amp and tuner, I still need to service the changer and try and figure out what needle the Shure Brothers cartridge takes?  I did the usual: recap everything, clean all controls and sockets, replaced the cord but forgot to install an inline fuse.  ::)  When I first fired it up on the bench nothing worked.  :-\  Now what!  As I started looking I discovered the plug was not in the wall outlet tight.   :-[  That does make a difference.  Into the cabinet it went for its first test run.  This thing kicks butt.  Strong FM with no drift and this is in my basement.  I can't wait to hear records.  ;D

Bill

13
Magnificent Magnavox / Magnavox and cartridges.
« on: July 21, 2018, 03:53:37 PM »
Since it's raining today I'm doing inside projects, one of which is putting together an order for Gary at VM.  I need needles for a few things, my Magnavox Berkshire with it's Collaro changer being one of them.  I made two discoveries:  1. the head shell comes of the tone arm, 2. it has a Shure cartridge.  I did not know Magnavox used Shure, I thought they only made magnetic cartridges. Googling Shure and reading its history, they started out with crystal, moved to ceramic, then magnetic. I have not found the model number yet so I need to do a little more digging before I can order.  Today I learned something!

Bill

14
Sightings / Fisher Console Stereo
« on: July 07, 2018, 09:20:20 PM »
I spotted this one on Grand Rapids Michigan Craig's List:

https://grandrapids.craigslist.org/atq/d/antique-record-player/6625020698.html

Bill

15
Sightings / Steelman Record Player
« on: April 07, 2018, 12:27:11 PM »
Spotted this for sale here in Michigan.  It's a Steelman. 

Bill

https://battlecreek.craigslist.org/for/d/vintage-mid-century-steelman/6536524399.html

Pages: [1] 2 3