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 - TC Chris

Pages: [1] 2 3 ... 14
Electronics / Power transformer fuse
« on: September 11, 2019, 06:44:09 PM »
I'll answer my own question about a power transformer fuse, discussed under another topic recently. While filing away some info I had printed out, I found the file on that subject.  One guy said he used #47 lamps on the PT center tap.  "This acts as a fuse with a 150 MA trigger."  I suppose you could consult tables of lamp currents to select another value. Another guy worried about using fuses rated for 125 VAC at higher voltages because when they blow, the vaporized metal can coat the fuse inside and conduct.  He said that HV fuses are longer & larger.  He uses an inch of #30 wire ( a single strand from an 18 gauge line cord is #34) across a terminal strip, or larger sizes for more current.  Interesting ideas.  These were both ham radio guys discussing their receivers.

Chris Campbell

Music / A Mercury disc
« on: September 09, 2019, 10:13:43 PM »
Every night at 10, my public radio station plays "new age" piano music, which I hate, for an hour.  That has become an excuse to listen to my own recordings. I've been working through LPs--some from the dumpster collection, some from the library sale.  Tonight I popped on "Marching Along," a 1956 Mercury "Living Presence" mono LP of Frederick Fennell conducting the Eastman Wind Ensemble in marches.  One side is Sousa, the other miscellaneous other famous marches. You can read the list here:

Mercury was famous for its large-ensemble recordings (bands & orchestras) because their sound was so much better than most of the competition at the time.  And actually, many of those discs from the 1950s and 1960s sound damned good today.  This s one of those.  One microphone; no gain-riding on the recorder.  And wow, it sounds good. 

I was a high school band musician, playing trombone.  I was awful.  I hated to practice and didn't.   But that one hour of the day in high school was the one hour I looked forward to.  Making music was just fun.  This disc reminds me of the great joy of playing in the band.

Chris Campbell

Chat / turbine oil?
« on: September 05, 2019, 07:38:50 PM »
As the weather gets cooler I wait for the heating boiler to come on.  It's a little hot water boiler with a fan-induced draft for combustion gases.  I didn't notice  the "oil annually" warning on the blower motor until the bearings got noisy.  The new blower gets oiled each year.

So tonight I grabbed my zoom-spout oiler and set to work.  And as we know, those say "turbine oil" on them.  So what the hell is turbine oil, anyway?  Is that just advertising puffery, like all the low-end phonos that had "high fidelity" labels on them, or is there actually a standard for turbine oil?  And what kind of turbine--steam, gas?

Off topic as usual,
Chris Campbell

Magnificent Magnavox / That cheesy sticker
« on: September 04, 2019, 08:13:12 PM »
Looking at the Stereo Theater ad under "sightings," I was reminded of the mystery of that big cheesy "diamond stylus" sticker that Magnavox stuck inside their consoles.  They were aimed at a higher-end market and tended toward a certain dignity in style and size and price.  Then you open the changer compartment and there's a big piece of advertising, and not in very good taste, either.  They could have made the same point with a paper platter cover that could be viewed and then removed.  Or even a smaller, less noisy and hyperbolic sticker.  Puzzling.

Chris Campbell

Chat / Steering gear lash adjustment
« on: September 01, 2019, 06:04:12 PM »
Yesterday I decided to adjust the steering lash on the Chevy.  First I consulted the shop manual and it was fairly un-helpful so I defaulted to my usual practice:  loosen the lock nut; turn the screw down until it stops; back off a bit; tighten lock nut again.  I was surprised at how much I had to turn the screw in.  But I tightened the lock nut and went for a test drive.  Wow, the play was gone from the steering wheel but the steering was really stiff.  So I backed off the screw a bit.  Still stiff but less so.  After about 5 test drives/readjustments I got it to where it's about right--no excess play, no excess stiffness.  Maybe a bit, t doesn't quite self-center as readily after a turn.

So does anybody know the right protocol for early-60s GM, the ones with the hydraulic cylinder for steering assist?

Chris Campbell

Music / The free LPs
« on: August 20, 2019, 11:09:42 PM »
OK, I just wrapped two packages of LP records to mail.  Then I discovered that I'm missing one labelled set, and fear that I've wrapped them with another person's request.  So... I need to measure how many LPs are in each package by feel to see if I've over-packed one batch.  Problem is, I can't find the request e-mails.  So... Dave, Greg, Charles, and Bill, could you please re-send your list to me?  Sorry about that.

Chris Campbell

Chat / A magnificent collection of radios
« on: August 20, 2019, 08:54:42 PM »
I found a taker for the mahogany Maggie TV cabinet that was headed for the dumpster before I stepped in as matchmaker.  A guy just north of me wanted it to house a vintage E.H. Scott radio he has, one designed for use at 24V on a naval vessel.  He wanted me to come up and see his collection.  I wanted to use some vacation time NOW, in the summer, not in dreaded November or December, my least favorite months.  So I took the afternoon off and drove up.

And WOW, what a collection of 1930s and '40s radios!  He has a couple great big art deco Midwest consoles, a Zenith from just about every black-dial year, and a host of E. H. Scotts in all their chromed glory. He's got the massive 1938 Philco with the tweeters and passive resonators.  He's also got some more lowly consoles. He has restored all the cabinets beautifully and the electronics thoroughly.  On each one, he has added an audio input so he can play modern source material.

Now this is where it gets interesting.  I got to listen to quite a few of them playing music from his tablet, and they all sounded very good--shockingly good, actually--on modern source material.  He has added tweeters on some that didn't have them, although several did, and that may have helped, but I was surprised by how clean the sound was, and how little distortion was evident. 

Here's a link to the Philco in question.  It's quite impressive.  So were the Midwests and Scott.  Even a modest Coronado sounded good.

And he had facilities we'd all kill for--TWO listening rooms with radios ringing the walls, chairs for listening, and in one, acoustic treatments for his high-end stereo (more amazing sound).  Plus he had a fleet of iceboats in his garage and a lot of cool car stories.  It was a good way to spend an afternoon.  And now I'm thinking about spending some money to get my unfinished back room drywalled and finished.  Right now it's storage.   It could be the show-off-the-radios room.  As with the Chevy, maybe it's time to spend my relatives' inheritance and pay somebody else to do it so it gets done.

Chris Campbell

Music / Note about free LPs
« on: August 09, 2019, 05:10:09 PM »
Just for reassurance...  I've set aside the free LPs that each  of you has requested, with a sticky note bearing name and address.  I'll be wrapping them up for shipping out as soon as we have a nasty day when I'm not out enjoying our summer season after work. 

For others, if you want any of the LPs in either batch, let me know.  It's first-come, first-served.

Some of you with mono consoles out to pick up some of those mono discs as period pieces from the age of your machine.

Chris Campbell

Music / More FREE LPs, part two
« on: August 07, 2019, 07:43:16 PM »
Danny Davis & Nashville Brass, Latest & Greatest
Tony Mottola: ... and the Quad Guitars; Mr. Guitar
Percy Faith: The Sound of Music; Chinatown
Boots Randolph: Greatest Hits; Boots with Strings
Roger Williams: The Way We Were; Evergreen
Burt Bacharach: Greatest Hits
Mormon Tabernacle Choir: Columbia 6-disc box set; What Child is This?; Bless This House
Ramsey Lewis Trio: The Sound of Christmas; More Sounds of Xmas
Boston Pops: You Will Be My Music
Bob Taylor:  Celebrates Christmas
John Denver & The Muppets:  A Christmas Together
J.C. Penney disc:  The Brightest Stars of Christmas
Ray Bloch Singers:  1776
Charles Albertine:  In Concert
Jerry Fielding & His Orch.: Near East Brass
Sandler & Young: Pretty Things Come  In Twos
Helen Reddy: No Way To Treat a Lady
Mantovani: The Greatest Gift is Love; All Time Romantic Hits
Walter Murphy: Rhapsody in Blue
Maynard Ferguson: Conquistador
Mac Davis: Stop & Smell the Roses
Fifth Dimension: Greatest Hits on Earth
Billy Vaughn: Soundstage
Columbia 3-disc set: The Music Lover's Album ("30 Beautiful Songs," various artists)
Fun with Drumsticks (jazz band without drummer, like karaoke for drummers)

The original, mono record posting is still available, too.

Chris Campbell

Music / More FREE LPs--all stereo
« on: August 07, 2019, 07:31:52 PM »
OK, my friend had some more LPs, all newer, in stereo, and in clean condition.  I picked out the ones I wanted and am offering the others for free.  The 78s I'm keeping--lots of good big band music including some Artie Shaw and Claude Thornhill.  Let's start listing records.  It might take a couple posts.

Ferrante & Teicher:  Beautiful, Beautiful; Feelings; Rocky & Other Knockouts
Floyd Cramer: In Concert
Liza Minnelli: Live at the Winter Garden
Bent Fabric: Alley Cat
Judy Collins:  Judith
The Fluegel Knights: One of Those Songs
Andre Kostelanetz  Murder on the Orient Express
Pete Fountain:  New Orleans, Tennessee
Peter Nero:  Greatest Hits
Oscar Brand:  The Americans [spoken word & musicians]
Engelbert Humperdinck: Greatest Hits
Mr. Acker Bilk: Stranger on the Shore
Hustle Factory: Do the Hustle (3 record set)
Andy Williams: You Law So Easy on  my Mind; My Far Lady
Captain & Tenille: Song of Joy
The Carpenters:  Horizon; The Singles
Ray Coniff: The Happy Sound of Ray Coniff

I'll post the rest in another post.

Chris Campbell

Sightings / FREE '50s Magnavox cabinet only
« on: August 06, 2019, 08:25:34 PM »
My old friend is tearing down his parents' house & garage to rebuild.  The garage contains a 1950s Magnavox cabinet--no innards--in mahogany.  The finish is rough and will need re-doing but hey, it's mahogany....  I'd take it and use it for storage until  could re-stuff it, but there's the classic issue of space.  It looks much like my '51 model except for the wood and the hardware and also much like my '56 Provincial Serenade--I'll attach reference photos of those.  Unlike the Serenade, it has a solid top, not a lift top.  Located in Bay City, MI (ca. 100 mi. north of Detroit).  This is going to bite the dust along with the garage unless somebody wants it.  Holler if you're interested and I'll get a photo.

Chris Campbell

Music / V-M Demonstrator record
« on: August 03, 2019, 02:34:47 PM »
I'm where the Chevy and the new little console live, and this morning went to the annual library sale.  It's held at ice arena, inside the hockey rink area.  They had LOTS of LPs and CDs compared wit previous years.  I bought a bunch of discs and books, $4 per box today.

One disc is a V-M Demonstrator record, without sleeve.  One side's label says "An Entertaining Stereophonic Demonstration" and the other says "Pleasure's New Sound" and lists 7 pieces-Carmen Dragon with symphony, Jackie Gleason orch., Gordon Jenkins, Nat Cole, Les Brown.

Its a bit beat-up and I have neither washed nor listened to it, so no guarantees, but if somebody has  V-M console I might be inclined to mail it off the first person who requests it (and sends me a photo of the console).

Chris Campbell

Music / Free LPs
« on: July 24, 2019, 05:36:59 PM »
OK, this is an experiment.   I'm going to see if I can add a Word document to this post.  My old high school buddy was cleaning out his mother's house prior to knocking it down to rebuild as his new residence and he mentioned that he had tossed a bunch of worthless LPs into the dumpster.  I didn't exactly have to go diving, although I'm good at that.  It had a big swing door at the end so I just marched in and grabbed them.  I picked out some to show off my Provincial Serenade, and a few that I wanted for my general collection, but I figured that others might like the rest.  They're free--and please note, all mono.  None have been washed yet.  Now the big question is, can I attach my list in Microsoft Word?

Chris Campbell

Chat / OT: cleaning the 4GC carburetor
« on: July 20, 2019, 09:04:10 PM »
OK, car fans, gimme advice.  The Chevy barely made it back to the garage last time, so today I pulled the carb and took it apart.  There was rust-brown mud, very fine particles, everywhere.  But before seeing that, I stopped at the auto parts store and bought two in-line filters to replace the one I had used before, and also a new bronze filter to replace the original GM device in the carburetor.  The store's computer said the inline paper filters stop stuff at 12 microns, pretty tiny.  The bronze one is rated at 40 microns.   I was kinda hoping that two filters in series would keep enough crud out of the carburetor to hold me over until I can get it into the shop for a gas tank pull--and maybe avoid another disassembly and clean out.  I'm not sure how the brown mud got in if the filter really is good for 12 microns.  But there it was, everywhere in the carb.

Questions:  Are two filters in series going to work, not creating too much resistance for the mechanical fuel pump?  And is there a better filter option, something larger, finer, more capacity?  I think Greg mentioned a diesel filter--better?

And my comment:  I know the 4GC is disfavored, but taking it apart again reminded me how quite well-designed some of our old mechanical, analog systems were.  The automatic choke, the various valves for the secondary airflow, none of it using a computer.  And the old carb actually was trouble free for the years when it was a daily driver.  Those old engines were actually fairly complex and pretty effective, especially when considering that few drivers knew much other than where the gas goes and where the key goes.

Chris Campbelll

Chat / My marine hi-fi
« on: July 09, 2019, 09:28:22 PM »
On my local sailboat, the sound system is a Ray Jefferson radio direction finder with AM, FM, and VHF-FM bands.  Only the AM band does direction finding via the rotating ferrite bar antenna.  I only use it for FM, via a majestic 5" RCA 1960s car-stereo speaker, the kind that came in a little plastic box and sat on the rear window shelf of the car making buzzing noises and distortion.   It sits in the cockpit and the radio is in the cabin area.  What's interesting is that this is pretty lo-fi but it actually sounds pretty good while sailing along on a summer evening.  Tonight I was listening to a broadcast of the Berliox requiem, a piece written for half  gazillion musicians including four (!!) brass bands.  And you know, the music was listenable--not much distortion, pretty good tonal balance (OK, no bass to speak of but tolerable highs). So I snapped some photos to show off this system.  First, the little speaker, all 5" of it.   Next, the Ray Jeff RDF.  Note the big rotating antenna on top. Nobody uses RDF any more because everybody else's cell phone (not mine) has GPS.  But hey, if I get caught in the fog, I could always switch to AM, switch off the AVC and use the manual gain, and start rotating the antenna.

Chris Campbell

Pages: [1] 2 3 ... 14