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Was about to adjust RS-BX727 and discovered something strange about it. Higher frequencies are fluctuating as on picture. Replaced a roller with another one but the problem remains and I just don't have an idea what can be a problem. Anyone seen something like that before? - Pinch roller...

Thread title is probably not clear but I'll try to explain what I mean :) Under the process of calibration, oscillator (or however it is called) is sending a two signals to a recording head. The one is for level adjustment (315 or 400Hz) and the other is for bias adjustment (8 or 10kHz...

My decks are finally serviced and adjusted but there is one thing I'm curious about. I have tried to adjust BIAS using Maxell UDII-90CD (the one with a clear shell) and TDK SA60 from 82-83. It didn't worked well because... no matter. Another Phoenix member which I appreciate a lot told me to try...

Long story short: Trying to adjust peak meter (FL). It indicates 0db instead of +3 (Dolby levbel properly adjusted, so it's only peak meter) My question is which resistor need to be replaced. Have marked 4 resistors but not sure which one of them. If that (probably) matters, there are no more...

Looking for a ZVP3306a but it's out of stock at both Mouser and DigiKey, and I don't trust the others. Can buy it here in Sweden but I believe it's original from China, so NO. Anyway, I need a substitute for it but not sure which attributes is important to follow. Looking at DigiKey, there are...

What can be a reason of low frequency loss thru a deck? I was thought that there is some compatibility issue between a deck and sound card (Creative) but the results are exactly the same even with a new card (Scarlett). The worst thing is that I'm getting the same results with two decks of the...

I've recently found out that identical two of my cassette decks have a infinite (?) impedance (DMM showing OL). I won't ask why, there have to be some reason, but wondering if that and which way affecting a functionality of a decks. Any ideas?

I believe that caps are affecting a sound, but... Take for example some TOTL amp that is built only by the highest quality components. In a such a situations its clear that only the best can be involved. At the same time, when talking about standard music equipment where a manufacturers have...

To make a long story short, you decide to replace a polarized cap with a bipolar one, which normally takes more space and if there is no enough space, would you consider use this: ... to make something like this: or something like this: or just put a good quality polarized capacitor and move...

Have two potentiometers from some Technics donor deck. Very, very little used, as new but still 30+ years old. They are kind a hard. Anyway, I couldn't resist and opened one to see what can and need to be done with it. Electric side was as new. The part that need a little love is a shaft...

Can anyone tell me what can be a reason that makes a signal jumping as it does every couple seconds. I know that left and right channels are not steady because of a pinch roller (the left smaller one) and I'll replace it, got new and fresh from Marian a couple days ago, but jumping??? o_O...

Haven't seen such a heads never before.

I'm wondering if there is a noticeable difference between branded resistors and Chineese resistors. If we say two resistors of the same value, 1/4w, 1% or 5% tolerance, does really matters when it comes to decks and other audio equipment? I use to buy Vichay in a values I need but I would like...

.... but how good it is?! Never seen this before. Anyone tried? https://youtube.com/shorts/5Qiru_fqdj8?feature=share

Don't know for you guys but I just love those old videos :) And there are lot them on youtube. Here is also one about transistors :) And of course, something classic about the weapons and hunting

Was reading around different articles and discussions and found something interesting. There was discussion about head replacing and a guy showed a graph picture that shows a PB FR when playing a test tape (10kHz, 400Hz and 3kHz). There was a diff about 1db between 400Hz and 3kHz. One other guy...

Well, there are 2 decks waiting for some fixing and adjusting but I'm just feeling myself too lazy and keep telling to myself "next week" under the last 3 or maybe little longer... However, not so lazy to think :) and two things/questions just came up: 1. How many watts is needed for some...

... it's about a tools. Have a Metcal MX-500P-21 soldering station which I just love, but... . When I power it ON, it turns on yellow LED instead of a green one (green means ready, yellow means fault). Couple times turn on-turn off and it works and it happens more and more often. Today I...

To make long story short, if I want to adjust a signal level, is it properly to change value of R559 (and R560 for a second channel) ?

Have about 5 meters of a good cable and thinking to replace standard cables I'm using to hook up all equipment (CD, MD, deck and so on). What I need is RCA plugs and there ARE lot of them on market. Wondering if there is really some difference between them. The one can get 20-pack from Amazon...