No, never used Wurth rubber care. The only stuff I have used is rubber renew and it works pretty good for bad pinch rollers and turn table drive idlers.

Great, Ten Four on your reply. Keep making videos and I will make time to watch than.

+331sbf Actually the manufacture used a 1khz tape. I have a sony alignment tape. The thing is a 1khz tape you need a frequency counter to set th speed unless you are a musician with perfect pitch a even then without a reference. So when many techs like myself did was calibrate a deck using our reference tape, then take our audio generator an tune it up to 440 hz, which is the note "a" and make a recording of that on our freshly calibrated deck. Make several "burner" tapes that we used along with a cheap guitar tuner to set the speed of decks in service. That way our 100.00 factory calibration tape was not going in customers decks when it would get chewed up and stretched. The frequency of the tone for speed calibration doesn't matter. Now the 3khz tape you were referring to was for head azimuth alignment. You hooked your scope probes to the 2 audio terminals, put the scope in x-y input, a adjusted the head azimuth for minimum phase error. You just gave m an idea for a new video thanks.

+331sbf I had a sony 1 kHz for speed, and 3 and 10 for alignment and eq. To make a speed tape I use a quartz locked direct drive Technics. When I worked for Sony the audio guys (I was a betamax tech so I didn't work on audio at all) used the 1 k for speed, the 3 and 10 were both used. The 10 primarily when calibrating Dolby circuits. There were also sweep tapes as well but myself I only used 1 and 3 k as that is what was in my services kit. I had 4 tapes. One had an inspection mirror to see the tape running over the heads another had the torque Guage hubs, and then there was my 1 and 3k tapes. That is what was supplied to the shop I worked at. When I left I forgot that they were in my tool box as I did with a set of beta and vhs alignment tapes and an esr meter. (which I had built anyway)

+331sbf A 60 or 46 preferred. 90 is thinner and tends to stretch. To make an azimuth a mono deck is required

400, 7KHz and 10KHz are the standard tones. They are expecting that someone will use a frequency counter. 440 is the music note "A" so it makes it easy to use a cheap guitar tuner to set the speed.

Even though the proper musical notation of A is 432hz

My RSM275 was calibrated with a calibration tape before I made my custom speed test tapes. I have a set of Sony alignment tapes, the speed test with 1KHz tone, azimuth with 7KHz, torque, and inspection tape that has a cutout, and mirror that allows visual inspection of the tape running over the head and pinch roller. Since they are not sitting in front of me now I can't give you the model number. Anyway I verified the speed of my RSM275 with a frequency counter, and made a few test tapes. It is these "work" tapes that I put into other decks to set up. That way my factory alignment tape is not used any more than it needs to be.

3khz is better for measuring W/F but for speed that is not important. A 440 tape is just fine, and guitar tuners are very accurate

@@12voltvids thanks for your time and answer!

Certified quartz lock tape deck.

I don't have a fluke 101, I have a fluke 12.

vikingbeard sure you can. isopropanol alcohol 99% is a good all around cleaner. xylene works great for video and audio heads but don't put that stuff on rubber or plastic as it will melt it. (that is the active solvent of model airplane plastic cement) Freon TF was the best but you can't buy that any more. banned substance. damages the Ozone.

Thanks a lot for the good advices!

I have Kenwood dubbing deck KXW6080. Have tried cleaning the heads with 91% Isopropyl many times with no success. Deck A and Deck B both will not play left channel after I record. Any suggestions?

Could be a number of things.

Don't know.

My three different decks have different levels on VU, of the same recording. Further, one of them has fewer voltage output when indicating nearly plus 6dB. Pioneer s630s (3 heads) made recording 400 Hz 0dB, Yamaha tells it is plus 4 dB other Pioneer tells it is 6 dB. It is a mess. Think only test tape can help.

+gacj2010 I don't us special equipment. I have a calibration tape and a cheap guitar tuner. What can cause your tape player to go slow could be a slipping belt, or lubricant dried up on capstan shaft, also could be the motor. Should be a speed adjustment on the motor.

12voltvids Thank you ..smart skilled man

It is just a jewlers screw driver that you can buy cheap. They come in a kit with typically 5 different sizes. Usefull for eyeglasses too.

I guess I should have asked Philips screw driver or a flat blade because I have seen people using both of them I have tried both with on luck the motor has two wires on it and has the little hole on the top of it with a rubber slit but every time I but the screw driver in it I don't feel anything turning it just speeds up then when you take it out it slows down that's why I was asking what kind of screw driver you where using maybe you can't adjust this one

Yes you are hitting the control and shorting something. Usually it is a small philips, but some use a slot trimmer.

Thanks for your help I finally got it to work with a flat head screw driver I did not know I had to go that far in the motor.Thanks again

+David Berquist In the US model it is inside the transformer. Thermal fuse. In Europe they run on 240v and everything has to have a fuse in the plug.

The carpet does nothing to dissipate ESD. ESD is not really a concern for this type of electronics, and componets in general are relatively safe in the curcuit. Where the problem happens is with unmounted componets, being handled by an ungrounded body. Your body acts like a capacitor and can store enough energy to destroy electronics. But again, once the unit is in a metal chassis, just touching the metal chassis will discharge any build up in your body. At work when we are pulling delicate cards out of equipment, then yes the wrist strap is needed, and if I was working with computer processors, and memory, cards motherboards ect, then I would be grounded, but VCRs TVs audio components ect. They are not that sensitive to it.

ahhh, understood, 12voltvids. thanks for the explanation!

Most are very similar. Unill you get into the really high end units like my Technics, then you are talking a totally different animal.

440 is great for speed calibration as it is the same as the A string on a guitar for a tuner can be used. 3khz is normally for wow and flutter measurement and 7khz for azimuth adjustment.

@@12voltvids thanx 🤗

I think you mean de-magnetization.Heads used for playback will over time pick up a magnetic charge from the tape. No different than if you rub a magnet on a screw driver the steel in the screw driver will become magnetized and pick up screws.de-magnetization of the head removes this built up magnetization. When a head becomes magnetically charged it will affect the high frequency playback more than anything.Most 2 head decks have a built in demagnetizing circuit. This is the record bias oscillator. Simply putting the machine into record will generate the AC record bias signal, and that will neutralize the magnetic charge in the head. 3 head decks on the other hand, and playback only decks such as car players and Walkman, or portable tape recorders with DC record do need to be manually de-magnetized using a demagnetizing unit.This is basically a coil of wire with a metal probe covered with a rubber tip to prevent scratching the head. You plug the unit it, and the AC magnetic field produced will de-magnetize the head when you bring the probe up to the head, pass over it a few times, and slowly move away from the head.

How can i set it correclty? this is changing recording quality. When i turn it all the way up it will blow away high frequences and recording sounds really bad but when i turn it to minimal the recording quality is better but still not good enough.

Sounds like you are talking about what the rest of us refer to as record bias.That lets you fine tune the bias signal to the tape formulation.Too much bias and you will loose high frequency, too low and the recording sounds muddy.Some better decks have a self bias feature that runs a frequency sweep and calibrates itself (My old Teac does that) but most it is a manual control, and it is trial and error. Record a few seconds, play it back, adjust it slightly do an other test and play back..Eventually you will find a spot that has the sound that is pleasing to your ear. Of course change brands of tape and you have to set it again.

Thanks a lot! That helped very much. I got it working.

+cm2881 I can make you a reference tape with my audio generator and quartz locked, calibrated direct drive Technics RSM275 deck.I have made a few for people. I always use 440hz for speed as a cheap guitar tuner works perfect for this as 440 Hz is the musical note A.

+12voltvids thank you. I will private message you my email address and we can take it from there

Inside the power transformer, so when it pops, the unit is done.

TOP DAWG Right ok you know more than the rest of us. Heads are metal, rubbing them won't hurt them. The squeaking is the binder that had contaminated the head being cleaned off.

Their top of the line models are actually amazing.

@@svenschwingel8632 JVC and teac are the best to my ears