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Topics - TC Chris

Pages: [1] 2 3 ... 7
1
Chat / "California Typewriter"
« on: December 11, 2017, 10:27:16 PM »
Tonight our local film series showed a cool documentary called "California Typewriter."  It's about, duh, typewriters and the people who use and service them.  I figure that people on this forum like old things and mechanical things so you may want to seek out out on DVD or online.  Tom Hanks is one of the featured people--he collects and uses typewriters.  And historian David McCullough, and musician John Mayer, and playwright/actor Sam Shepard (who died recently). 

Chris Campbell

2
Electronics / preferred filter cap brand?
« on: December 07, 2017, 11:14:10 PM »
Do you have a preferred brand of electrolytics for filter caps?  I'm getting ready to order a bunch for winter old radio repairs, and usually just settle for whatever I can find online at Mouser or Digi-Key.  Seems to me that the higher-temp option (105 deg. Celsius?) is probably better but I haven't even been faithful about that.

Chris Campbell

3
Radios / FM-33 radio schematic?
« on: December 05, 2017, 07:58:36 PM »
Has anybody got a schematic for the FM-33 table radio?  I'm going to order filter caps for a bunch of radios and need the values for the electrolytics in this one.  I'd rather not have to take it apart to read what's in there if somebody has the info at hand.

Chris Campbell

4
Electronics / Ceramic cartridges
« on: November 19, 2017, 10:23:58 PM »
I've always wondered why some console manufacturers chose ceramic cartridges for their turntables.  Magnavox was devoted to them, and the new post about a Mathes console shows a V-M changer with, we may assume, a ceramic cartridge.  It's not that V-M didn't make changers with magnetic cartridges; I've got a V-M separate that has a plug-in headshell and GE VR-II cartgridge.  It can't be the need to have two stylii so people could play 78s; the VR-II had microgroove and 78 stylii.  Of course, it was mono; I can't remember if anybody made stereo two-tip magnetic devices.  Few people were interetsed in 78s by the stereo age anyway, and those who were could just buy another stylus to plug in.

And it's not necessarily tube and component count increasing because of a preamp.   Magnavox sprinkled 6V6s around like they were free. 

So what was their thinking?

Chris Campbell

5
Console Tales / A Scott (E.H., that is) Console
« on: November 18, 2017, 10:01:34 AM »
The Univ. of Michigan e-newsletter had a piece on Chip Davis, apparently a famous pop musician.  He was in the U-M concert and marching bands as a student.  The article had the attached photo of him as a child in front of his parents' big E.H. Scott console.  Here's a link to the article if you're a Mannheim Steamroller  or C.W. McCall fan. http://michigantoday.umich.edu/from-moog-to-mannheim/

Chris Campbell

6
Chat / Off topic: the floor jack
« on: November 14, 2017, 12:37:17 AM »
There are lots of people with knowledge on this forum.  In another post I mentioned changing the oil in the Mustang and my leaking hydraulic floor jack.  Well, I started the day today by taking it apart.  The pump cylinder leaked badly.  When I pulled it, I found a big manufacturing defect--deep scratches at the bottom of its travel that seem to have ruined the o-ring on the piston.  The jack is too old to take back to Sears, and as that company has headed toward oblivion they have stopped giving parts lists with parts numbers.  Geez, that's why I bought from Sears--you could get parts for stuff.

OK, so I've got a useless jack unless I can fix it.  My idea is to use some epoxy, probably J-B Weld, to fill the scratches, then use some fine wet-sanding paper on a dowel to sand it out, sort of like a cylinder hone.  Then I'll replace the o-ring and the new one won't self-destruct on the edges of the big scratch.

Any better idea? 

And the Mustang...changed the oil; filled the gas tank with premium for the winter, plus some isopropyl alcohol fuel dryer, and then... the battery finally died. Oh, the joys of old-car ownership.  Did I have the cell phone?  Noooo, this was just a gas run.  So I borrowed a phone from the gas station clerk and got to try out my classic-car insurance road service feature.  Bingo!

Chris Campbell

7
Chat / LP shelving
« on: November 11, 2017, 11:41:37 PM »
It was cold today and not good weather for changing the oil in the Mustang or raking the leaves, which are buried in a light snow.  So after jacking up the sailboat trailer to get the weight off the tires for the winter, I finished up my new LP shelves.  This is a wooden shelf set built by a local carpenter.  They were intended for records (as in paper records) at my brother in law's office.  After his death, my sister finally sold the place.  This set of shelves looked just right for LP storage, so I snagged them and built a new base.  They were on casters, but I was afraid that the weight of all the LPs (11-1/2 feet on these shelves) would create an excessive point load at the casters on the OSB subflooring that they'd sit on.  Otherwise stated, I was afraid they'd punch through the OSB.  The new base is 5/4 pine so as to spread the load and rest it on the joists.  The project involved moving all the LPs from the old shelves into the kitchen, moving old shelves out, laying new ones on their side so I could remove the casters and screw the base on, tipping the whole thing back up and sliding it into position, then putting all 11-1/2 feet of LPs back.  The things we do for our music....  I'll se if this photo shows up in reasonable size.

Chris Campbell

8
Music / Grand Ole Opry
« on: November 04, 2017, 09:55:21 PM »
I'm usually busy on weekends all summer but now it's winter.  We lose daylight saving time tonight, and it's cold and wet outside.  The boats are hauled out.  The Mustang has seen its last traveling for the season.  So now I'm sitting here listening to the live AM radio broadcast of the Grand Ole Opry at 650 on the dial.  They've been on the air since 1925, the longest-running radio program in U.S. history. 

You can catch it on the internet, all static- and fade-free, but it's a lot more fun to turn on a good AM radio and pull those tiny signals from the air, they way people have been doing it for 92 years.  Nashville is just shy of 700 miles from where I live and WSM has a clear channel still and lots of power. I'm listening on a classic GE P-780 portable with a homemade AM loop antenna.  The GE is sensitive, with a tuned RF stage, and designed to sound good. 

Chris Campbell

9
Chat / Fall activity/record shelves
« on: November 02, 2017, 06:24:26 PM »
Where's all the activity?  Where I live, the summer to winter switch got flipped on Oct. 23 and it has been rainy and cold ever since.  That's the season when I do all my indoor stuff.  It's going to rain through the weekend.  Farther inland, they had enough snow to bring down branches and power lines.  I figured that everybody would be playing with their electronic toys now.

Tonight's chore is making a base of some sort for the shelves I salvaged, the ones sized just right to hold LP records.  I have glued the Formica back on.  It had come loose in  basement flood.  After I build a small base to raise it up off the floor just a little, I'll have to move all the LPs off the shelf that's where I want to put it.  The new one is larger. Then all the LPs have to be moved back. The existing shelves have about 112" of space and the new one gives me 5" more with fewer shelves and lots of nice dividers.  Then, of course, I will have the old shelves for overflow.  There's another set that won't get disturbed right now. 

Chris Campbell

10
Chat / Halloween
« on: October 31, 2017, 07:51:32 PM »
Wow, I see no posts today.  Took off from work early to get ready for the trick or treat crowd and checked then, but figured it was because everybody else was still at work.  But now, still nothing.  So maybe everybody is eating the leftover candy, or maybe eating it before the kids get it?  We always have a big crowd of costumed kids because I live in an old neighborhood where the houses are close together and kids can collect a lot of loot.  Parents drive them in from the suburbs where it's hard to walk and far between houses. 

Tonight I snapped a photo of the best costume.  It's a girl in a balloon--like hot-air or helium--getup.  Here it is.

Chris Campbell

11
Sightings / 1956 Magnasonic
« on: August 22, 2017, 07:19:35 PM »
I was just in Burlington, VT to perform a wedding ceremony for a niece.  We were staying in a little summer cottage near my brother's house.  Back in the corner there was a '56 Magnasonic 420 serving as a table for a TV.  The finish is a big banged up and the grill cloth, while intact, needs a bit of stretching.  It does not appear to have been used in a long time so I did not plug it in.  I'm going to tell my brother to let the cottage owner know that if he wants to dispose of it, I can publicize it.  Or if somebody wants one of these--I have a good one already--I'll get contact info for the owner.

Chris Campbell

12
Chat / Gratitude for civility
« on: August 01, 2017, 09:15:27 PM »
Hey, just a note to say that visiting this group is always fun.  In part, it's just because I like old  electronics, and especially the kind that makes music.

But the other good thing is that we're all polite and tolerant.  I'm pretty sure that if we polled all participants, we would find a wide range of political opinions, religious beliefs, and Very Firm Views.  But nobody here gets into those things that make for big fights, and better still, nobody insists that his or her own views on electronics, engineering, or repair technique are the only correct ones.  There are some groups where the people with Very Firm Views regularly denounce all who disagree as fools or idiots.  It doesn't make for an interesting exchange of information.

Bear in mind that I agree with George Carlin, who said that everybody who drives slower than he does is a moron, and everybody who drives faster is an idiot.  But I have learned to keep my views of driving technique to myself, mostly.

Chris Campbell

13
Chat / Stop me before I do it again!!!
« on: July 27, 2017, 08:19:40 PM »
There's one born every minute, or at least there was back around the time I was born.  I'm on our local "freecycle" list, mostly so I can give away stuff that I don't want but somebody else might.  But from time to time something catches my eye.  Tonight I drove out to lay claim to a mid-30s GE console radio, an E-86.  It was sort of their middle range radio--tuned RF stage, 12" speaker, but single-ended audio output (6L6, so it's not too wimpy).  There's some peeling veneer, but like any addict, I just can't resist these orphan electronics.  I managed to squeeze it into the garage (barely), but I really need to win the lottery and acquire some proper storage space.

Chris Campbell

14
Music / First LP
« on: July 25, 2017, 08:40:23 PM »
I was hauling along on my daily after-work walking route today and for some reason found myself whistling a familiar tune.  Hey, it was from an LP by the Dukes of Dixieland.  And then I remembered that their "Curtain Going Up" LP was the first one I had ever bought.  One day when I was in high school--1965 or earlier--I was in the cafeteria for lunch and there was some great music playing over the PA system.  I went back and asked the cafeteria ladies what it was.  The manager took me back to where the equipment was--Garrard RC-80 or -88 changer, a Heath A-9 amp--and looked.  Dukes of Dixieland.  I wrote the numbers down and ordered it at the record store.  Remember those?  They were places where you could walk in and look at records, maybe buy some.  What a great concept.  And I still have the LP (of course).

Chris Campbell

15
Chat / Capacitors on sale
« on: July 25, 2017, 08:22:39 PM »
I notice that Antique Electronic Supply has 600 V "orange drop" polyester capacitors on sale.  https://www.tubesandmore.com/products/clearance-sale

I didn't compare prices.

Chris Campbell

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