Hi... the reason you can't find a speed mod for this tape machine is because it has fixed motor speed (hence no trimpot).. you can get around this by using a PWM module between the motor, and the motors power supply wires.. This allows you to control the square wave pulse that feeds the motor and to modulate it with the potentiometer as required to achieve the desired speed.. The pwm modules cost a couple of bucks on aliexpress, and just require 4 pieces of soldering and the potentiometer mounting... They work amazingly, and throw in a chinese reverb module, also a buck or two, and youll have a great creepy lil tape player.
I was listening to Trepaneringsritualen while watching your tutorial, not realizing I had the volume of your video on also. At around 14 min of Papist Pretender I began hearing this haunting bell sound that was just incredible so I paused your video...only to realize it was the combination of your recording at 2:45 (the bells) w/ Trepaneringsritualen...you guys should probably do a split haha. Great noise here.
Regarding your description - If you do want to find ground, the best way is to find a wire thats attached to a random bit of metal in the player, like the motor or the case somewhere. Thats ground. If you dont want to solder to there then follow where that wire goes around the circuit and pick somewhere
you can try to test different potentiometers, maybe one with higher or lower ohms, that matches the range of voltage controled Or if it was a linear pot try a logarythmic or the other way around, since they behave differently as you dial them in ( on audio for example linear acts exactly as in your case: nothing happens for the first 80% and then the last 20% make a huge difference - Logarythmic dials in the sound smooth ) - if its bc of the pwm of the motor-control than that needs to be adressed
@1:50 Don't ever use your teeth for stripping wire, this ruined mine, just use scissors, a side cutter or a real wire stripper, (not the terrible thing he is using), but a very big thumbs up for making this video making the taperecorder do different speeds. By the way it is also possible to change speed of a CD player, If anyone wants to know how, please let me know, I did it once a long time ago, If I get a request on this, I will make a video how to do this. (Now busy with some analog simlations in LtSpice) Keep up the good work.. (But don't ever use your teeth!, you will regret it if it becomes a habit)
My potentiometer smoked and burnt up when I tried this. I connected the 6V motor’s positive lead to the middle terminal and negative lead to the right terminal. When I turned the knob clockwise, the pot turned red and started smoking. Thoughts??...
@@danix683 It is not clear from the explanation where do I have to connect one of the remaining two sides of the pot. I cannot understand the “other cable to the motor” that you mentioned.
You may not go on the power train directly as it has a few watts. The speed is regulated by a circuit in the motor and by bridging the connections, the controller slows it down. If you just put a pot or resistor in the way of the powertrain, it has to dissipate a lot of the power going through and burns.
A motor can suck more current than a pot is designed for. Hence at least one person in the comments who had a smoking pot. A wirewound pot or voltage mod circuit
hey there! i tried doing this with both a 10k and 50k pot (both linear) and when connecting directly to the motor the potentiometer began to smoke and become overloaded with power. any tips here?
@@projectnull not your fault! it's a similar player, but different. i've been trying to find resources online for what happened, i think there may need to be a resistor in front of my potentiometer so that it never lets the full current through. interesting that you didn't need one though -- what kind of batteries / how many does your player use?
@@projectnull Hi! was there any solution/tip for this? I tried that with sony tcm 939 and also had a little smoke.. but I tried to connect in a different place - not where you did it, but at the other end of the cable connected to the motor - on +/- on the pcb. Maybe that was the reason for smoke. Only today I have dismantled the recorder further and had to take the motor completely out to find a spot that looks exactly as in your video here. But this is so well hidden that I will have no option to test it on the go, this will have to be soldered, put back together and only then I will know if it's successful (which is not convenient) I will be giving it another try tomorrow, as I've tested the pot to be still alive! Basically I have no idea what I'm doing :) btw. it your recorder stereo? tcm 939 is mono and sounds completely rubbish, i'd call it ''bad'' kind of lo-fi :) but maybe i'll get some interesting sounds out of it with some filtering and reverbs anyway.
10k pot LOGARITMIC like in the description or 1k ? Tried it with 500Ohm and its the same nothing happens for the first 80% and then the last 20% make a huge difference
Hi, i have a problem with my Panasonic RQ-2102 player, it stops sometimes when i play tapes and record stuff to them automatically, do you know how to solve this problem? Thanks.
project null Wow, Thanks you so much. I'm thinking of buying this, or the Panasonic RQ-2104. So I'm trying to find out what the best choice is. If you could make a quick test video, that would be amazing! 😊👍🏼👍🏼👍🏼
project null ended up circuit bending my tape player last night and used a 1k, sounds great and has some good range. A little finicky but I think it’s because of how old my tape recorder is hahaha thanks for the quick response (^:
@@projectnull pardon my understanding of electronics wich is unexistent but is the pot the big cylinder that we see inside the tape recorder ?? and if not how can i find it on the PCB ? i'm about to try the operation without proper knowledge and i wanna make sur i copy everything i see the right way when ill be ready to do it.
@@projectnull Thanks for the response! Yeah, I had a hard time finding a good pot for this one. Ended up putting a 100 ohm pot in series (so before the motor and not in parralel as you show here). Still not very usable as a pitch wheel. So the 10k pot you ended up using for this model, was it a logarithmic or lineair?
Hi... the reason you can't find a speed mod for this tape machine is because it has fixed motor speed (hence no trimpot)..
you can get around this by using a PWM module between the motor, and the motors power supply wires..
This allows you to control the square wave pulse that feeds the motor and to modulate it with the potentiometer as required to achieve the desired speed..
The pwm modules cost a couple of bucks on aliexpress, and just require 4 pieces of soldering and the potentiometer mounting...
They work amazingly, and throw in a chinese reverb module, also a buck or two, and youll have a great creepy lil tape player.
I was listening to Trepaneringsritualen while watching your tutorial, not realizing I had the volume of your video on also. At around 14 min of Papist Pretender I began hearing this haunting bell sound that was just incredible so I paused your video...only to realize it was the combination of your recording at 2:45 (the bells) w/ Trepaneringsritualen...you guys should probably do a split haha. Great noise here.
This a great way to acquire samples and put them into a hardware sampler or DAW for further processing.
Regarding your description - If you do want to find ground, the best way is to find a wire thats attached to a random bit of metal in the player, like the motor or the case somewhere. Thats ground. If you dont want to solder to there then follow where that wire goes around the circuit and pick somewhere
Awesome video! I love tape machines, and your instructions are really simple and easy to follow. Keep up the stellar work
Thank you for the easy to understand tutorial! I just got a tape recorder to mod yesterday. :)
giving us a full performance at the end there. Loved it wth!!
Awesome, super clear concise instructions. Thankyou!
Don't strip wires with your teeth. My grandfather used to do it, and his front teeth were an absolute mess.
Awesome tutorial and music Nicolas!! Very cool indeed, great advice, sounds and instructions my friend :-)
you can try to test different potentiometers, maybe one with higher or lower ohms, that matches the range of voltage controled Or if it was a linear pot try a logarythmic or the other way around, since they behave differently as you dial them in ( on audio for example linear acts exactly as in your case: nothing happens for the first 80% and then the last 20% make a huge difference - Logarythmic dials in the sound smooth ) - if its bc of the pwm of the motor-control than that needs to be adressed
What's that music during the tutorial? I love it
Yeah i would like to listen the full tracks too....
oh! Thanks! Can't wait to listen :D
Ohh this is exactly what i want thank you
Sweet. And your bandcamp is RAD!
you are a hero for uploading this
Very nice
@1:50 Don't ever use your teeth for stripping wire, this ruined mine, just use scissors, a side cutter or a real wire stripper, (not the terrible thing he is using), but a very big thumbs up for making this video making the taperecorder do different speeds. By the way it is also possible to change speed of a CD player, If anyone wants to know how, please let me know, I did it once a long time ago, If I get a request on this, I will make a video how to do this. (Now busy with some analog simlations in LtSpice) Keep up the good work.. (But don't ever use your teeth!, you will regret it if it becomes a habit)
I'm interested in changing the speed of a cd player. Are you making a video for that?
Dropping in to say I'd give anything to hear how that sounds!
My potentiometer smoked and burnt up when I tried this. I connected the 6V motor’s positive lead to the middle terminal and negative lead to the right terminal. When I turned the knob clockwise, the pot turned red and started smoking. Thoughts??...
What was the ohm rating for you're pot?
You'd probably need to solder a resistor between the pot and the motor
@@danix683 It is not clear from the explanation where do I have to connect one of the remaining two sides of the pot. I cannot understand the “other cable to the motor” that you mentioned.
You may not go on the power train directly as it has a few watts. The speed is regulated by a circuit in the motor and by bridging the connections, the controller slows it down. If you just put a pot or resistor in the way of the powertrain, it has to dissipate a lot of the power going through and burns.
A motor can suck more current than a pot is designed for. Hence at least one person in the comments who had a smoking pot. A wirewound pot or voltage mod circuit
do you have any video how to add an audio input if there isn't, like a microphone?
i like the music played in the cassete used in 4:30
whats the album in it and its tracks? (incl the music played)
How to transister replacement
You only got "two speeds" because you did not choose the potentiometer wisely.
Dude, what's wrong with the tip of your iron? Doesn't look like it needs changed to me, I use the suckers til they are half worn away!
Make sure you use a logarithmic potentiometer 👍
Looks like you need a logarithmic pot (type 'A' or 'Audio'), it will give you much more control over speed.
hey there! i tried doing this with both a 10k and 50k pot (both linear) and when connecting directly to the motor the potentiometer began to smoke and become overloaded with power. any tips here?
@@projectnull not your fault! it's a similar player, but different. i've been trying to find resources online for what happened, i think there may need to be a resistor in front of my potentiometer so that it never lets the full current through. interesting that you didn't need one though -- what kind of batteries / how many does your player use?
@@projectnull sure thing, just emailed you. thanks man!
@@projectnull Hi! was there any solution/tip for this? I tried that with sony tcm 939 and also had a little smoke.. but I tried to connect in a different place - not where you did it, but at the other end of the cable connected to the motor - on +/- on the pcb. Maybe that was the reason for smoke. Only today I have dismantled the recorder further and had to take the motor completely out to find a spot that looks exactly as in your video here. But this is so well hidden that I will have no option to test it on the go, this will have to be soldered, put back together and only then I will know if it's successful (which is not convenient) I will be giving it another try tomorrow, as I've tested the pot to be still alive! Basically I have no idea what I'm doing :)
btw. it your recorder stereo? tcm 939 is mono and sounds completely rubbish, i'd call it ''bad'' kind of lo-fi :) but maybe i'll get some interesting sounds out of it with some filtering and reverbs anyway.
@@jaredfoldy2139 Hey Jared, having the same issue. was curious if you ever found any solution to this?
@@racalik You'd need to solder in a resistor between the potentiometer and the motor to limit the amount of voltage your pot is receiving at a time.
10k pot LOGARITMIC like in the description or 1k ? Tried it with 500Ohm and its the same nothing happens for the first 80% and then the last 20% make a huge difference
Maybe you won't have that prboblem with lineair pot?
Hi, i have a problem with my Panasonic RQ-2102 player, it stops sometimes when i play tapes and record stuff to them automatically, do you know how to solve this problem? Thanks.
Uma chave pode esta quebrada dentro do mecanismo do toca fitas.
What is that pedal?
Arbitrary Chemistry AC Noises AMA. Really cool reverb and bitcrusher
Can I ask you a question? How would you rate this tape recorder? How is the recorder and the internal speaker? Thanks :)
project null Wow, Thanks you so much. I'm thinking of buying this, or the Panasonic RQ-2104. So I'm trying to find out what the best choice is. If you could make a quick test video, that would be amazing! 😊👍🏼👍🏼👍🏼
What size pot did you use?
project null ended up circuit bending my tape player last night and used a 1k, sounds great and has some good range. A little finicky but I think it’s because of how old my tape recorder is hahaha thanks for the quick response (^:
@@projectnull pardon my understanding of electronics wich is unexistent but is the pot the big cylinder that we see inside the tape recorder ?? and if not how can i find it on the PCB ? i'm about to try the operation without proper knowledge and i wanna make sur i copy everything i see the right way when ill be ready to do it.
Hi! Nice tutorial. I found this exact same tapeplayer. What potmeter did you end up using for this particular model?
@@projectnull Thanks for the response! Yeah, I had a hard time finding a good pot for this one. Ended up putting a 100 ohm pot in series (so before the motor and not in parralel as you show here). Still not very usable as a pitch wheel.
So the 10k pot you ended up using for this model, was it a logarithmic or lineair?
@@markvandenheuvel9547 if you're still interested in this, the "A" in "10k A pot" means logarithmic. An "A10k" potentiometer. "B10k" would be linear.
Message from netorare: stop it, it's scary
stage 4 be like: 5:50
This recorder has ruined many original cassettes in the past due to the pinch roller
thats not much of a “pitch control”. unsuccessful mod in functionality
Jeez, man.