Originally Posted by
niklasthedolphin
If you want to play back some old tapes, first thing is that you have to find out what track configuration and speed they have been recorded with.
Track configuration on 1/4" tape width can be full track, half track, quarter track, four track and 8 track. Again with half track it can be staggered, in line, Ampex gap, time coded and other non-standard configurations.
Speed can be 30ips, 15ips, 7,5ips, 3 3/4ips, 1 7/8ips and even slower if it's been recorded on a logging machine.
Speeds also are measured in cm/s on some machines.
Expect most R2R's from ePay to be faulty.
Calculate a service on top of the price unless you closely know the seller and the way he (ab)used his deck.
GX heads last very long but don't have the sonical qualities of some other head materials.
Understand the difference between consumer decks, semi-pro decks (J-decks) and dedicated pro decks.
Sonic, build and service-accessibility is most usually all better quality on real pro studio, master and editing decks.
Pro Reporter decks don't have to be better in sonics but should still be very sturdy built and have easy service access.
Pro decks will usually have been modular built, have printed circuit boards as insert cards, all allignment points taken to the surface, logic/relay operation, real-time counters, fully balanced circuits etc.
From new, some pro decks would have costet from $~4.500 - ~$25.000,-
The difference in price between consumer decks and semi-pro decks and the true pro decks was huge.
However, on the used market the price differences are not that huge anymore.
Some decks in pro use are worn all the way down from 24/7 use.
Some consumer decks have a great sound quality as well, close to the good pro decks.
But some consumer decks are collectors items more because of their looks or scarcity.
One manufacturer, Otari, is still marketing Pro R2R decks in the very cheap end of the pro
market.
These machines has become very popular now.
You mentioned a Nagra in your OP.
Most Nagra decks are reporter decks.
The Nagra T is a studio deck.
It will be very expensive to purchase.
It's a very sought after collectors Item and an ingeneering piece of art.
Some other pro decks will be preferred for the sonics though.
Very few pro decks are quarter tracks.
I suspect that your prerecorded tapes being quarter track tapes.
I have been using R2R continuously since the 60's and I have been using a lot of machines for reporting, for master recordings, for broadcasting, for logging, for private use, for high end audio on exhibitions etc.
I will be happy to answer what questions you might have further on the subject.
"dolph"