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Reel recorder bi-directional recording but records only in one direction and playback is backwards in the opposite direction (full reel on the right side.Teac 4070G

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  • Teac Master
  • 1,258 Answers

The A4070G can record in each direction but has a switch that needs to change to switch the heads. This must be stuck after all this time and so the deck needs service. They are not easy unit to work on. I have one in my shop now. The bad news is that they use combo record and erase Ferrite heads that can not be sourced anymore.
I am very familiar with this model as I worked at Teac and fixed many of them.

Posted on Jul 13, 2014

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Posted on Jan 02, 2017

Grubhead
  • 5047 Answers

SOURCE: My AKAI GX 636 records but can't hear anything on playback

Trace the wires from the head to the amp section. Put your finger on where they join (during playback) and see if you can get a buzz. If you can't on either channel, look for something that might be common to both channels. Either a switch, or a pre-amp IC, as being the cause of the fault.

Posted on Aug 06, 2009

dunnbiker
  • 8546 Answers

SOURCE: I have a TEAC 3340 reel to reel recorder and

No, that would require slowing the capstan or making its diameter smaller for the rpms it turns now. Sorry.

Posted on Mar 18, 2010

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  • 9 Answers

SOURCE: I have a TEAC 3340 reel to reel recorder and

In short, no. if you look closely you will see the Teac 3340 has a much larger/thicker capstan shaft than other Teac reel decks. This feature allows the faster tape speeds...7 1/2 and 15 ips. In order to slow down the Teac 3340 you would have to change the flywheel to one from another deck that was made to run at 3 3/4 and 7 1/2. Which is possible but some work..plus you would have to find a slower speed flywheel from another Teac deck. Also to maintain performance, the bias and Eq positions for the slower speeds would have to be readjusted from 7 1/2 and 15.

Posted on Jun 08, 2010

shellyfam4
  • 7 Answers

SOURCE: Right Side Playback Very Low

First check your connections. Then playback a known good recording. That way you'll figure out if is the machine has issues with the playback or not. If that is no good then too then clean the playback heads and check it. Then try swapping out your cables or using different jacks on your amp. If the payback is good then clean the record head with a Q-tip and alcohol. Then try a new recording and check it. If it still is no good then invest in a demagnetizer, but use it sparingly. Also it could be that the record level knob is not making a good connection. Put some headphones on (connected directly to it) to hear the recording and try moving it back and forth. If you hear some static, it may have oxidation building up. Deoxidation spray does wonders.And if none of that does the trick, you will likly have to take it in and get the preamps replaced. Good luck.

Posted on Jun 19, 2012

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I have a teac 2300s tape deck. My problem is when i press the rec / pause or rec play the 2 meters slam to the right. They don't move while recording,but the deck will record and playback. Putting the...


The leads to the VU meters have shorted out. The fact that it only happens when you push "Record" sounds like part of the mechanism is actually causing the short.

Jul 15, 2017 | Pioneer Rt-1011l Reel To Reel Tape Deck...

1 Answer

Right Side Playback Very Low


First check your connections. Then playback a known good recording. That way you'll figure out if is the machine has issues with the playback or not. If that is no good then too then clean the playback heads and check it. Then try swapping out your cables or using different jacks on your amp. If the payback is good then clean the record head with a Q-tip and alcohol. Then try a new recording and check it. If it still is no good then invest in a demagnetizer, but use it sparingly. Also it could be that the record level knob is not making a good connection. Put some headphones on (connected directly to it) to hear the recording and try moving it back and forth. If you hear some static, it may have oxidation building up. Deoxidation spray does wonders.And if none of that does the trick, you will likly have to take it in and get the preamps replaced. Good luck.

Jun 18, 2012 | Audio Players & Recorders

1 Answer

I have a sony TC-660 reel to reel player, it had been in great condition, and i love using it. All of a sudden however, the reels will ONLY move in one direction (clockwise for the left, and counter...


In order to maintain tape control and tension the reels always pull lightly in opposite directions during PLAY mode. The capstan moves the tape in the desired direction at a precise speed. If the capstan doesn't engage the tape BETWEEN itself and the pinch roller you'll get the reels battling over control of the tape. Check the tape routing.

May 25, 2010 | Quantegy 456 Reel-To-Reel Recording Tape

1 Answer

I can record on one side only, if I try to record on


It's a 4-channel recorder. That's four recorded channels in the same direction. You COULD use it like a standard 2-channel stereo recorder with bi-directional playback if you recorded only the front tracks. THAT would produce a 1/4-track stereo tape with two sides (directions).

In the photo, the front and back are clearly marked.

http://www.thevintageknob.org/SONY/sonyvault/TC7884/TC7884.html

Leave the Back Record switches in PB mode.

Mar 30, 2010 | Audio Players & Recorders

1 Answer

Can a 4 track reel to reel also playback 2 track stereo tapes?


yes depending on the machine it was recorded on tracks 1-3 will carry stereo sound if done on half track just plat it all four meters will come up

Nov 05, 2009 | Quantegy 456 Reel-To-Reel Recording Tape

1 Answer

Reel to reel plays audio backwards


HAVE YOU TRIED TURNING THE REELS OVER? ON SOME PANASONIC UNITS THE REELS CAN BE PLAYED IN EITHER DIRECTION BUT THE SOUND IS REVERSED IF THE REELS ARE UP SIDE DOWN. TRY TURNING THE REELS OVER AND IT SHOULD STRAIGHTEN OUT YOUR AUDIO PROBLEM AS WELL AS BOOST THE VOLUME

JAMESFWALKERJR2006@YAHOO.COM

Aug 29, 2009 | Quantegy 456 Reel-To-Reel Recording Tape...

1 Answer

My AKAI GX 636 records but can't hear anything on playback (had recorded tape play on another reel to reel) plus the VU needles don't move when you try to play a recorded or pre-recorded tape


Trace the wires from the head to the amp section. Put your finger on where they join (during playback) and see if you can get a buzz. If you can't on either channel, look for something that might be common to both channels. Either a switch, or a pre-amp IC, as being the cause of the fault.

Jul 18, 2009 | Audio Players & Recorders

2 Answers

Play back on Sanyo mr-929 reel-to-reel tape recorder is backwards


I also have an MR-929. The information that you need is in the 'Stereophonic 4 track stereo''. As stereo is only two tracks, there is another 2 tracks in addition to the one you are listening to. Wind the entire reel to the empty spool, and then play that. As you have to physically turn the reel over to do so, you should then hear the other tracks (or track, if recorded in mono).
I use my 929 to play my parents recording of my family from the late 60s, which were recorded on a valve (tube) Ferguson machine, which had a green "magic eye" level indicator, which as a child I found fascinating!

Howie

Mar 31, 2009 | Audio Players & Recorders

1 Answer

Connections for a Grundig reel to reel tape recorder


Grundig TK23
Inputs at rear of machine. From Left to right.

Circle with line underneath. (Micro socket) - microphone, mixer (Grundig 607), telephone adapter.

Square with line on top - Radio input/Output. Record/playback radio. Record records if player is connected to radio for playback via a 3-pole amplifier unit. Re-recording to a second tape recorder. Connection to a Grundig Stereo-Mixer 608.

Reversed Q - Phono Input. Connection to a record player or a second tape recorder. (for re-recording records or tapes)

Squiggly lines - Outputs. - Connection to external speakers. Grundig Stereo Box. Connection to an additional amplifier (Grundig 229) for synchronous recording.

Square with line at right. - Earphones.

Loudspeaker switch - (At bottom) - In the "0" position, the internal speakers are shut off.

Dec 30, 2008 | Audio Players & Recorders

1 Answer

Tascam 22-2 no sound


Yes you need to hook it up to an amplifier and speakers through RCA cable on the back. And or you can use headphones if there is a headphone jack?
Also make sure there is something recorded on the reel tape in the first place. You can do a test recording of something like a CD from your CD player or record something, then play it back, make sure you turn the record input volume knob up and make the RCA connections on the back of the reel unit and connect to your playback source you want to record. When you playback the reel tape, the db meters should be moving on the front of the reel deck, if they move then you most likely have some sound recorded on the reel tape.
If you still can't hear any sound and the db meters are moving, then check all your connections again and volume output knob on the reel deck. Hope this helps?

Sep 26, 2007 | Quantegy 456 Tape Reel(1/2 in. x 10 1/2...

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