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That is a nice plug but not everyone likes 3D printers besides I have a drawer of the 12 pin remote plugs here still even though they are not gold. One day he would be good to supply them as in sell them. No need to show us one.

Heat sink silicon or white Zinc Oxide past can be purchased but to be honest it is old school and so in my service business I went on E bay and bought a bunch of TO-220 sheet called Silpads that do not need the silicon or zinc paste. I have all that stuff here but Silpads just do a cleaner job...

I have had to transpose leads on occasion but that is not my first choice as a better part that is specified above can be put in with correct lead positions. When I transpose leads I put a PVC jacket tube on two of them because you never know who will get into the unit and bend something down...

If a transistor like 2SC1815 gets warm or hot then I would simply put in a larger transistor like a KSD1616A which is good for 1 amp and .75Watt with 60 V breakdown plus the pin out would match being ECB. I am not one for fooling around as my repairs are expected to last by me. Mouser has the...

I think you are venturing in where only big companies like Shure brothers have perfected the process. There are lot of other things to do rather than try to build one of these and I myself would not venture in this area. Some of these large companies like Neumann and Shure have large perfected...

Just supply the 1 and 3 terminals of the Headphone amp input with a signal with a 10K resistor in series and both commons of the input to pin 2. You do not need all that other circuitry before the headphones and the reason it mutes is because of the mute line pin 2 of that connector. Adding the...

Regulated solder stations still are subject to the laws of thermodynamics. This is why a tip of an Iron is less temperature than the more broad part as the heat transfer is at a different rate. In 47 years I have soldered a lot of joints- no I do not like or will not use lead free solder- that...

This is a device better answered by Jim Finch at the Tascam Forum as I have had little experience with this. The USB interfaces do require a mixer software and to be configured in a computer as they just do not work when plugged in. In my Radio experience where I set up these devices many users...

That is why I tell people that when they take a unit with servo tension to a shop and they do not have the right tools don't even leave it there as all they will do is goof it up. In unit that have erase problems I check signals at head wire, then in even one case I used the scope to test the...

The little power supply is a switcher otherwise it would not be that small. As long as you can get the right power coax connector then making you own 12V 2 amp power supply would be easy or you could get some that would be more reliable than those little things that will one day go out. When I...

Those are just fancy jumpers as in wire links. You can do the same thing with some solid gauge wire. There is no high current going through them.

That is why at Teac no one wanted to work on them so they did finally come up with a metal frame device that allowed it to be mounted and flipped over. The thing was a bad experiment and a pushing technology too far. Besides the electrical problems then you also have them from the format end and...

All the connector pins are resoldered using Kester 44 and a magnifier head set in my case as connector with the activity they get will be the first items to crack. The solder joint will need to look shiny when it is dry otherwise it could still be bad. Other Tascam units like Tasvam 48 have had...

I have not worked on the 388 since working at Teac in the 80's but the symptom you describe after changing cards is that the motheboard soldering could be the issue. In the Tascam 38 and some other models with push in cards, they are double sided and have feed through that with very anemic...

The tensions on machines are often messed with and terribly wrong. I had a 48 that had a play tension of about 20g/cm when it is suppose to be 80. The hands that get into these do not have the right tools nor do they have a clue what they are doing and really don't even know when they mess them...

The speed alignment tape is made pretty easy on a known just calibrated machine. It will contain 3KHz sine wave and I make my secondary one at 0 Vu. Those tapes that suppose to be of azimuth and levels are not accurate as that takes a lot more machine to make them right as in a full track width...

What you need as all Technicians need is a thinking brain. The only danger as with even open reel decks is where the power cable goes in and is put to the power switch. You can use a thick glove made to withstand 240Vac like the linesmen use but I think you will not get much work done that way...

Well yes and no. Some parts do the same and other have no ability to show you anything. The frequency counter shows you a digital readout of the frequency of the signal and it counts the amount of events within a precise 1 second setting. This means Cycles per second or Hertz. It can not tell...

The speed tape that is sold for alignment purpose is the same tape (MTT111). The frequency counter just reads the frequency of the signal on the tape and it should be 3000Hz. A deck that goes double speed will be 6000Hz but a frequency counter will display that but the 3KHz filters in the Wow...

If you look at the erase heads in some machines the gaps can be staggered. What you describe is a case where the head gaps that are maybe first have correct head wrap and the one that are odd do not or are barely in contact. This is a tape to head contact issue. Putting a dry cotton swab to the...