Expanded explanation of some of the above postings:
EnglishBob wrote:
I noticed the music kinda sounded wavey.
Apart from the machine itself needing good belts and good traction therewith and the capstan sleeve and motor oiled regularly - the tapes themselves have rubber rollers inside which frequently get coated with the graphite backing impregnated onto the tape causing it to slip.
The carts with the plastic rollers are even worse - mostly because it's next to impossible to find rubber-coated replacements - but with either one it's possible to disassemble the cart CAREFULLY in the manner suited to that type of cart and then clean and roughen up the rubber or plastic roller therein.
Do NOT use alcohol or acetone on the plastic rollers as they will dissolve and get sticky and only use it on the rubber rollers in a pinch as repeated use will dry out the rubber and cause it to harden.
The reverse problem occurs in usually GRT carts from the 60s and 70s where the rubber roller turns to tar and in the worst cases is next to impossible to remove from the tape itself, the cart, or the residue in the player.
Chas wrote:
I have a combo vacuum tube Akai R-R/8-track machine.
My Dad used to have a Wollensak 2-track/4-track player the school for which he did volunteer AV maintenance let him have a few of. By the time I was nine he gave me one and taught me how to use it.
A year or two later when I got the Akai combi-player I made simultaneous 4-track reel and 8-track recordings from the 2-track reels my Dad had from the 50s and early 60s so that we could play them in the car.
We lived right down the street from the Ampex duplication plant in Chicago so after a neighbor's father got a job there I started getting less-than-perfect 8-track shells and short-ends off duplication pancakes and loading my own from both that as well as all the leftover NAB carts being thrown away by the radio stations.
Chas wrote:
There may still be 8-track repair kits around as well as splicing and electric contact foil too.
Not so much kits - but to assemble your own is very easy.
Most things can be found in local stores or ordered online
Quarter inch aluminum splicing block from e.g. EdiTall/Xedit/Splicit
Single edge razor blade box cutter and supply of blades from any office supply store
Splicing tape (do NOT use Scotch Tape it oozes and sticks)
Quarter inch wide self adhesive weatherstripping foam as mentioned above
Artists powdered graphite in a 5 gram tube (to sprinkle on tape
packs and spindles for the reel and the roller to loosen them up)
Aluminum (not chrome) sensing foil 7/32 or half-inch from either film supply houses (proximity detectors) or security outlets The 7/32 you snip off a piece line it up and paste it in. The half inch you apply diagonally and shave off the edges in the splicing block before removing the tape.
Small flat bladed screwdriver for bending retaining pins back to separate cart halves
1/8 inch drill bit for RCA carts that are held together by a headless screw.
Medium size Phillips screwdriver.
Some carts - usually Audiopak by Capitol - are secured with a Philips screw in the center.
Small strips of fine grain sandpaper to clean and roughen up the rollers.
Alcohol `tap' container and cotton swabs to clean the heads and capstan/tape path.
Wand demagnetizer.
Set of calibration 8-tracks (can get them on a reel from STL in San Jose and wind them into your own carts)
Teflon slip discs with quarter inch holes in. Still fairly readily available.
You can use a TEENY bit of grease under the reel in a pinch but it's not advised.
Some carts - usually RCA - are sonically welded like most cassettes - so after determining the cart is not one of the conventional types with the tabs in the top or bottom - you have to take the box cutter and score carefully around the seam and then take the screwdriver and pry apart inbetween the corners and work your way around.
To load your own with blanks, or if you get a good recorder and want to dump out the old copy of the album and record a new one onto better tape from a modern digitally remastered copy - or create your own mixtapes - lots of places still have New Old Stock of loop tape which has the necessary graphite coating impregnated onto the back.
Radio station combination tape timers/cart-winders are still fairly easy to come by if you look around.
It's highly recommended to use these (or even two) vs trying to wind and wind back onto all but the smallest reel decks (or even a Living Letter 3-inch or 4-inch type player)
Instead of the rim drive type I recommend the capstan drive and just splice a length of leader a couple of inner-circumference turns long onto the head, run the tape through the normal tape path including the capstan and play at normal speed.
After the reel is as full as you want it, pull the leader out of the center and save it for the next one before splicing the head to the tail, re-threading the tape path inside the cart and re-assembling.
``Tuning'' the Head
With most players - of the five head adjustments (wrap rack zenith height and azimuth) you will only have to worry about the last two. Height references whether the head and the track are correctly matching up or too far up/down to read properly.
Azimuth references whether the head is cockeyed to the left or right from the track it's trying to read.
Both of these adjustments can be done very easily with a small screwdriver.
Do the azimuth alignment first with the corresponding screw on a good calibration tape and then do the head height adjustment (often on the same azimuth tape) for best performance.
If you knock the head out of it's caddy, then you will have to start from scratch and do the other three adjustments first and then repeat the height and azimuth adjustments.
And finally there's quadraphonic (early form of Dolby Surround).
You can tell a Q8 three ways:
1 by the notch on the upper left side when placing the cart in the player
2 by looking at the program content - Q8s will only have 2 programs instead of 4
3 by listening to see if you hear what sounds like a different copy of the same song
on Programs 3 and 4 as you hear on Programs 1 and 2
Many Q8s are rare and worth considerable amount of money so check around if you have any or come across any before you play them in just any old player.
If you want to make your own Q8's from stereo sources - just about any matrix decoder made today that has a 5.1 analog output other than for speakers will do nicely. You may need to get Y adapters to combine the center channel with the left front and right front or run it through a simple 5.1/4.0 conversion box easily found online or built at home.
To actually record Q8 ONTO the 8 track itself of course you have to start with the correct Q8 shell.
As far as machines, there's two ways to go.
1 A good high quality Q8 recorder such as a Technics 858 or Akai equivalent
2 An 8-track 8-channel quarter inch multitrack reel deck (Fostex or Tascam) converted down from 15 IPS to 3-3/4.
Both of these operate in real-time-plus so it takes roughly an hour and a half to make an hour long album since you have to record each of the two programs individually. The only thing to be said about making the original recording on the reel-to-reel is the considerably more stable transport mechanism and considerably higher grade electronics.
You can also use higher grade/high-bias tape on the reel to reel and play it back normally in the cart for a better sound - especially with the addition of Dolby B Noise Reduction that is very hard to keep calibrated and keep the tape aligned well enough recording on a cartridge deck.
Welcome to 8-Track.