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Thanks for your kind advice!:thumbs up:But what I want to do is to try to capture the sound of the internal mics on the boombox without recording to tape, with as little noise as possible from the motors! :) A little project of mine! :drunk:

The volume level controls the REC level, there is a VU meter aswell showing the REC level from the internal mics. If you listen to the wav file you hear the volume increase and decrease in the beginning and in the end, that´s me turning the volume knob durin recording! I ordered some r20...

I get it now! The DIN would give a cleaner sound since the headphone amp is bypassed,, but are you sure the inner mic will be monitored there?

I get it now! The DIN would give a cleaner sound since the headphone amp is bypassed,, but are you sure the inner mic will be monitored there?

I really appreciate the time you guys put down in order to help me out, even though you find the whole idea pointless... mdainst, do you think I can monitor the internal mics with the DIN connector? You see, there is also an option to connect an external microphone. Maybe its that signal that...

I also have a 388 and a fostex 3070! :):listeningmusic: 1. I know from similar models, that I have grown up with. that the sound is always the same from those mics!, the tape player is functioning on this model, I were trying to get another one but bought this one instead,, this project is...

Thanks for taking your time, helping me out on this one! So, from what I can tell by your reply I could aswell use the output (DIN) to monitor the internal mics?` Thats good to know! Can you see how I could turn of the mechanisms in the tape player (or whatever is causing the "steam engine"...

Here is the schematic diagram, you can view it in a bigger version if you open it in a new window can someone see if the headphone amp takes i´ts signal from the record head? I marked the inner mic´s with a red square and the headphone out with a blue square, i cannot find the heads though??

haha!! I know it might seem wicked, but I actually like doing wicked things,, :guitar: haha,,

okey, I demagnetized the heads but the crackling is still there,, Next move is to try batteries,,and perhaps get the manual to find out where the headphone out is taking the signal from,,

Since the wav file I put up is recorded straight to minidisc I´m not sure if the record head would be involved in any way?? But I do have a head demagnetizer so I could try that!

https://soundcloud.com/hitachi-trk5280e/trk-5280-mono1 I recorded the sound from the internal mics (bounced to mono) when in REC/PAUSE mode straight from the headphone amp into a minidisc. Listen to the different noises, I want to get rid of them,! and I´m sure there must be some way to remove...

I just did a test with my boombox and it turned out that it DOES monitor the internal mics thru the headphone amp. :listeningmusic: The only problem now is that there is some hum. It could be from the motor, they make some noise even if the tape is´nt running but in pause mode, it could also be...

Actually, I bought another Boombox today on auction!! can´t wait to try this one! :) c. 1977-78 Hitachi TRK-5280E - hitachi - BoomBox 70-80' Club / 70-80 -

Thanks for useful info on the battery vs AC power topic. Would there be any benefit from the sensor trick you mentioned vs just keeping the cassette in record/pause mode? Which would also let the microphone pick up sound without having the tape rolling

Strangest thing I´ve heard!,But interesting,,, In what way could the power supply affect the sound? :eek:

Yeah, that could probably be fixed,, but I´m still interested in trying to make use of the internal mics without the use of tape, it´s a little project. As soon as I get the unit, I will try the ways discussed here, outputs and headphone jack, if it doesnt work I´ll return.thanks

I´m sorry, I´ve read the manual with block diagram online, but now I can´t seem to find it! But here is two pictures of the model from the auction. they´re not the best,

Hi and thanks for the reply. Actually the boombox hasn´t arrived yet (bought it on ebay) but I have experience with the specific model. It has headphone output, but I guess they don´t send the audio that´s picked up by the internal mic not sure though, if that´s the case the problem is solved...

that´s something I´ve would never thought of, and if it would work, it could be some kind of genious idea. I don´t know much about these adapters but I found some information on Wikipedia, and this line made me think,,,Because most cassette adapters use a single-sided head, they only work in...