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Topics - Motorola Minion

Pages: [1] 2 3 ... 7
1
RCA / RCA console - lower and upper speaker enclosure
« on: August 16, 2017, 02:18:57 PM »
Has anyone seen one like this? I bet Larry has. It is of the 1963-64 style, as opposed to the earlier non-multiplex FM sets. Its great to see the other variations posted in this forum.

I am picking this up Friday and cannot wait to see what's inside. Are there high-frequency speakers or horns in the upper part? I'll have to move some out and maybe donate others to make room.




2
Tube Consoles / 1963 Grundig KS590
« on: July 25, 2017, 10:36:14 AM »
I debated if this should go under Sightings but I already agreed to buy it. https://harrisburg.craigslist.org/ele/6199091960.html It has six speakers, push-pull EL84 stereo amp, and a multiplex adapter. I have no fear of German stuff, as an electronic nut, knowing what the discrete components look like is that hardest part.

I must be the only local who would give this unit what it needs, a cleaning and electronic restoration. I looked at it 2 weeks ago and its in a backyard storage shed, but dry thank goodness. the seller contacted me an asked if I was still interested.

 Unfortunately the reel-2-reel player is long gone but the Dual 1009 record changer is original. A tube and preamp capable of amplifying a magnetic cartridge is only something I have in a Fisher that needs almost the same level (total) restoration :(

3
Here is the changer from my 1947 Berkeley. Obviously this was an upgrade to play newer records and it has an E-V 26, stereo cartridge. It is in good physical shape but lots of dust has lodged under and in the mechanism, so I have spent effort cleaning it. I just disassembled/cleaned/lubed bearings on the motor and replaced the conical rubber motor mount bushings. It is plenty torquey and sits just right where it should, vertically lining up with the drive pulleys, which are supple and pliant.  It looks like the British-made Micromatics I'm used to like the later W602's but other things are not at all similar and I have a few questions and hope someone here can give benefit of experience. 

The cycle wheel/gear must be removed so its shaft can be lubricated just like on later Magnavox but it looks like 5 Philips screws on top side, around the spindle area and tone-arm, need to come out to drop the entire changing mechanism. Before I take the step of this much disassembly, is it necessary to thoroughly clean and lube the changer?

A second issue is the idler wheel that drives the platter. It seems not able to move far enough horizontally to engage the capstan on the motor. Is there a "release action" like on V-M changers that allows it to swing over?

4
Sightings / Elvis had a 1971 Magnavox
« on: June 21, 2017, 02:32:01 PM »
 https://lancaster.craigslist.org/ele/6183909630.html and https://lancaster.craigslist.org/atq/6184906594.html

In case the ad is gone, http://auction.graceland.com/1971_elvis_presley_owned_magnavox_stereo_from_his_-lot324.aspx

BTW, I happen to be restoring one of these and just got the record changer done. I was afraid I wouldn't have any interest if I posted an ad :-\ but it looks like someone, local no less, just beat me to it.

5
Motorola / Motorola Stereophonic restoration at last
« on: June 19, 2017, 12:34:12 PM »
Quality sound is needed to serenade all the flooring and painting work. So I got this http://vintagehifi.net/index.php/topic,1559.0.html from CL almost 2 years ago and has been sitting in the rec-room attic of an addition I started about that time. Also at that time, I began working on a 1964 Fisher Custom Electra for this event, but since moved it to the garage because the Italian Provincial cabinet needs to be stripped. I also need to repair its Garrard changer and power switch though its amp and tuner are all cleaned up and recapped.

Back to the Motorola. ONE bit of advice if you work on one is to LABEL ALL PLUGS and SPEAKER WIRES before you attempt to disconnect anything. And you have to undo the whole business to work on any one chassis. I will add some photos of how I used "brady tags" to assign numbers to all these plugs and leads. Unlike Magnavox, RCA and Zenith, Motorola seemed to separate all the components. Placing the preamp in its own sealed chassis is pretty neat though.  ;)

The 3-channel amp has the power supply on it as well. The power is distributed to a tuner, a preamp and the FM multiplex adaptor. Speaker leads and an RCA plug are on the verbaphonic reverb unit, which is made by a supplier to Hammond Organ. Looking at the Sams schematic does explain all the routing but when you actually look inside one of these consoles, you will be impressed and intimidated. I swear there is more wiring (though neatly routed and tied) than in a VW Beetle  ???

After labeling all the plugs including speaker wires, I disconnected them and put each chassis into its own flat box. This will allow each to be carried down to my bench and I can place all related hardware, cables, spent parts in the box as I work on it. First one up is the amp.

I also gave the cherry veneer finish (not a Drexel cabinet) a good cleaning of dirt and old wax using 000 steel wool and turpentine. The drawer hardware was removed and will probably end up in a bag inside the cabinet, since early American style needs all the aesthetic help it can get.

Last night I decided to pull out all five speakers to check physical condition and to test them and the crossover caps on my audio oscillator. The 12" woofer was pretty even (by ear) from about 36 Hz up to 500 Hz. The 8-inch midranges made noise from 400 to 6000 Hz and the 3.5" cone tweeters were clean from 5K until my ear's limit of 12K. I put them back in and wonder if maybe that 12" woofer should have its own air-suspension box built into the cabinet.  :-\

Ill post all the electronic restoration here rather than in repairs because I do not expect anything unusual.

6
Sightings / Mag Star system combo - Central PA
« on: June 08, 2017, 01:06:58 PM »
https://harrisburg.craigslist.org/atq/6139700945.html  I just hate see this sit but I need to move a few out to make any room.

1976 really was a great year for Magnavox TVs, and a year or two before Magnavox quit making stereo theatres.

This was unique in that the star system remote was only used a year or two before becoming the touch-tune series

I was expecting a standard BSR record changer but it looks like a Garrard.

The receiver looks like ones used in the later "dry-sink" furniture Magnavox sold many of.

7
The only combo I own, I could not ignore the fact this was Zenith's first rectangular color TV though it is not a Space Command remote set. The original owner, after buying a new TV in the 1990's brought it to the plumbing-heating business I picked it up at. It was being used only for its fine FM performance, which still remains though it needs the usual restoration.

The receiver chassis is second from Zenith's top of line and so is the record changer. The walnut cabinet is very clean with only the grill weave imperfection.

8
Tube Consoles / Magnavox Berkeley - CR198 chassis restoration
« on: May 12, 2017, 12:44:43 PM »
This receiver chassis is used in several models including the Hepplewhite. I bought a Berkeley model 134B over a year ago and much time passed because the base of the cabinet was missing. The electronic restoration was delayed while selecting wood and researching methods of recreating the trim profile with correct dimensions.


9
Solid State Consoles / Magnavox 1971 Astrosonic 2P3763
« on: April 25, 2017, 03:51:48 PM »
I got this for $20 from a neighbor moving back to NYC, who did not want to take it along. After trying it at home, I knew the real reason he unloaded it. It is very clean and had the 8-track under the left side, which I traded for some parts.

Chassis R231 is a 50-watt receiver that has the pushbuttons instead of the rotary selector. I cleaned them with deoxit, the stepped tone controls and the timbre/balance/volume pots. Once you remove the Palnuts, the chassis slides upward. The only wires I disconnected were the FM antenna ;D Easy!

It still sounded awful after deoxit, so I decided to proceed with a full recap even though none of the caps tested high on my ESR tester.  I got the RF-IF/preamp/PB selector board recapped and slid the chassis back in. WOW - just doing the front end and preamp made a huge difference. The power supply and driver-output stages are still left to do along with a clean-lube on the Micromatic changer.

So far I have only a needle and 20 some caps invested. It took only 45 minutes to desolder and replace half of them so far. I would like to sell this console locally. Based on how fast this effort has gone to date, I might make some money :)

10
Sightings / $40 RCA 3-ch stereophonic in PA
« on: April 11, 2017, 11:21:11 AM »
https://harrisburg.craigslist.org/atq/6075665189.html

At least it wasn't listed under record player. I imagine these changers are not rare.


11
Sightings / RCA Victor 3VF61 - "the hutch"
« on: March 03, 2017, 01:56:39 PM »
The price is tempting and its on the way home, but I am up to my eyeballs in consoles right now and the local market is almost non-existent.
https://lancaster.craigslist.org/atq/6016340693.html

I really do like that tilt-out receiver though. Also looks like a total tube console so Ill check the Sams to make sure.


12
Sightings / GE wall mount on legs - Pa
« on: February 22, 2017, 02:10:00 PM »
These are not seen often around here, but at $45 its tempting. https://lancaster.craigslist.org/ele/6010426386.html

The first thing I would do is deal with the cat scratch fever by covering that weave with walnut.



13
Sightings / 1963 Zenith - mahogany beauty - Eastern Pa
« on: February 08, 2017, 03:44:00 PM »
https://philadelphia.craigslist.org/atq/5992371055.html

I restored a very different Zenith with the same all-tube stereo tuner and 4K21 amp chassis, excellent performer. This one has the cobra-matic, maybe one of the last models before the "2g" changers were used.

14
Sightings / Magnavox 27" BW stereo theather - north NJ
« on: February 07, 2017, 01:21:51 PM »
Ad copy from videokarma:
55 YEAR OLD VINTAGE ALL TUBE MODEL!

1961/1962 ALL TUBE MAGNIFICENT MAGNAVOX VINTAGE STEREO THEATER

27" b/w TV, AM/FM RECEIVER, STEREO RECORD TURNTABLE.

ALL HARDWOOD CHERRY CABINET IS IN FACTORY LIKE-NEW CONDITION.

ALL TUBE STEREO AMPLIFIER WITH DUAL 15" SIDE FIRING WOOFERS AND HORN PROJECTION TWEETERS.

ORIGINAL MAGNAVOX AUTOMATIC TURNTABLE WITH ORIGINAL PICKUP.

ELECTRONICS HAS NOT BEEN TURNED ON OR EVEN PLUGGED IN. FOR OVER 20 YEARS. MAY NOT WORK AND PROBABLY NEEDS ELECTRONIC REPAIR.

THIS WAS THE PREMIUM SET IN ITS DAY WITH UNBELIEVABLY GREAT SOUND.

MODEL 1MV415 M CHERRY RUN 1 MAGNAVOX STEREO THEATER SERIAL # 645221

CASH BEST OFFER YOU PICK UP IN NORTH NEW JERSEY.

I am waiting for contact info.

15
Cabinets, Cloth, Finishes / Matching new and old Mahogany
« on: January 27, 2017, 08:19:25 AM »
I just got the Magnavox Berkeley back after having its flood-disintegrated structural base and bottom molding re-constructed.  The new wood is solid mahogany, a farmed species from South America used for decking.

One thing needed with new wood is grain-filling the pores to match the rest of the Georgian-Style cabinet's. I remember using something like plastic wood to do this. I'm not a finish expert but I also think Ill have to stain a buch of times to get oit dark to match the old shade and finish with shellac. 

So my quandary is what to use for grain filling.
I also need to confirm that this is not a lacquer like most other consoles.

BTW:
This is the season (in most places) for basement hibernation. Its strange that I'm the only one with a finish issue, but this console needed the most work, so it seems the time to get into it.  ;) not to mention finishing and Beer just go together so well!

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