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von helloradio
22.03.2017, 20:05
Forum: Tonbandgeräte
Thema: Braun TG1000 playback head amplifier BRUM. HUM
Antworten: 2
Zugriffe: 4041

Re: Braun TG1000 playback head amplifier BRUM. HUM

Hi Raimund, "please press start, then pause: does the BRUMMM change if you switch to another speed? Does the Brumm stop? " ------on pause BRUMM still exists, no change in quality of BRUMMM during switching the speeds. If TG is in Stop mode, is there any Brumm or is then silence? ------in S...
von helloradio
22.03.2017, 19:06
Forum: Tonbandgeräte
Thema: Braun TG1000 playback head amplifier BRUM. HUM
Antworten: 2
Zugriffe: 4041

Braun TG1000 playback head amplifier BRUM. HUM

HI the big question is if BRUMMMMM in TG1000 tape recorders is a faulty design of electronics or something has happend over the years during aging process of capacitors, resistors, transistors, etc? I have five TG1000 tape recorders and all of them have the same BRUMMMMMMM. The playback head of cour...
von helloradio
22.03.2017, 18:34
Forum: Tonbandgeräte
Thema: TG1000 silber loud pop noise during pressing buttons
Antworten: 0
Zugriffe: 2738

TG1000 silber loud pop noise during pressing buttons

hello
the early Braun TG1000 silber version does not have FET transistors usually suggested to replace in case of popping sound during pressing keys Play FF Rev Stop.

please advice what to check because I run out of ideas.

thanks in advance
Darius
von helloradio
14.02.2017, 18:50
Forum: Tonbandgeräte
Thema: transistor SPF326 datasheet
Antworten: 5
Zugriffe: 6619

Re: transistor SPF326 datasheet

hi
and thank you for the tip but I could not find anything about SPF326 transistor.
It is used in Braun TG1000 tape recorder.
greetings
von helloradio
14.02.2017, 15:32
Forum: Tonbandgeräte
Thema: transistor SPF326 datasheet
Antworten: 5
Zugriffe: 6619

transistor SPF326 datasheet

hello
I am looking for information on transistor SPF326.
so I can find alternative replacement.

thank you in advance.
darius
von helloradio
19.06.2016, 10:22
Forum: Tonbandgeräte
Thema: TG 1000 Brummen bei Stillstand im Kanal 1
Antworten: 10
Zugriffe: 8802

Re: TG 1000 Brummen bei Stillstand im Kanal 1

hello
does anybody know what will be the modern substitute for those FET transistors?
von helloradio
11.12.2015, 21:06
Forum: Tonbandgeräte
Thema: Braun tg1000 capstan's motor sound in the speakers.
Antworten: 0
Zugriffe: 3308

Braun tg1000 capstan's motor sound in the speakers.

Braun tg1000 capstan's motor sound in the speakers. If I disconnect power supply from the capstan motor I hear only typical noise of electronics. In normal operation with 24V connected running capstan and slowing it down with fingers I hear different pitch of hum in the speakers. For example going f...
von helloradio
21.09.2015, 22:31
Forum: Tonbandgeräte
Thema: TG1000 (4.75cm speed) distorted higher frequencies
Antworten: 3
Zugriffe: 3876

Re: TG1000 (4.75cm speed) distorted higher frequencies

Hi Raimund and thank you for your answer.
Would you please show me on the schematic which RC elements in recording amplifier are responsible for EQ for 4.75cm speed and to what value to change them to lower from 20dB to 10dB for instance at 10kHz.

Darius
von helloradio
21.09.2015, 20:23
Forum: Tonbandgeräte
Thema: TG1000 (4.75cm speed) distorted higher frequencies
Antworten: 3
Zugriffe: 3876

TG1000 (4.75cm speed) distorted higher frequencies

Hi Even at 4.75 tape speed sound is very pleasant till higher frequencies appear. All the 'sssssss' become very unpleasant distorted 'shshshshshsh' Very low recording level does not help, just adds more audible tape noise. I imagined that higher frequencies will be gently rolled off with max frequen...
von helloradio
20.09.2015, 20:10
Forum: Tonbandgeräte
Thema: TG1000 loud clicks, pops in speakers during pressing buttons
Antworten: 2
Zugriffe: 3583

Re: TG1000 loud clicks, pops in speakers during pressing but

Hello Thomas I have checked transistors and diodes in the circuit you suggested. They read as a good ones. Next I followed the cables from the connector st2305 to TAPE/SOURCE switch and afterwards to the edge of the audio board with difficult access to the pins. There was continuity from the control...
von helloradio
12.09.2015, 18:58
Forum: Tonbandgeräte
Thema: TG1000 loud clicks, pops in speakers during pressing buttons
Antworten: 2
Zugriffe: 3583

TG1000 loud clicks, pops in speakers during pressing buttons

hello
My TG1000 has loud clicks, pops in speakers during pressing buttons PLAY, FF, REV, STOP
is there a way to fix it?
Thank you in advance for your help.
Darius
von helloradio
04.09.2015, 18:30
Forum: Tonbandgeräte
Thema: TG1000 height of the tape spools
Antworten: 1
Zugriffe: 2915

TG1000 height of the tape spools

hello
What will be the proper way to adjust the height of the tape spools so the tape will be exactly in the middle of the spool?

thank you in advance for your help.

Darius

ps is it normal that motors and other parts for example rectifier bridge on control board are so very very hot?
von helloradio
04.09.2014, 11:30
Forum: Tonbandgeräte
Thema: TG1000 motor lubrication
Antworten: 0
Zugriffe: 2148

TG1000 motor lubrication

Hi
What oil/grease do you recommend for Braun Papst motors?
Also is it necessary to take apart the motor to get to the bearings just to lubricate them?

Danke
Darius
von helloradio
30.08.2014, 21:24
Forum: Tonbandgeräte
Thema: TG1000 3sec from STOP to PLAY. how to make it shorter?
Antworten: 0
Zugriffe: 2043

TG1000 3sec from STOP to PLAY. how to make it shorter?

Hi
I am interested in shortening time delay between full stop from FF or REV to Play function to 1sec.
Could somebody skilled in electronics point me to the part of the schematics and give me some ideas what to change and to what values.

Thanks
Darius
von helloradio
27.08.2014, 18:53
Forum: Tonbandgeräte
Thema: TG1000 2-track DAMAGE CONTROL
Antworten: 6
Zugriffe: 6555

Re: TG1000 2-track DAMAGE CONTROL

hello It took me some time but I could not find in my town the right transistors so in the end I decided instead of BC340 put BD139 which I had in my spare parts. I thought that it will be big hassle to solder them because the have different pin configuration but in reality it was very easy. I check...
von helloradio
24.08.2014, 13:01
Forum: Tonbandgeräte
Thema: TG1000 2-track DAMAGE CONTROL
Antworten: 6
Zugriffe: 6555

Re: TG1000 2-track DAMAGE CONTROL

So the latest news. When all 3 speed buttons are off the capstan motor moves freely if I turn it with my fingers but with any speed button ON, I feel strong magnetic field and can turn it a little bit and it jumps about 2mm forward. My guess is that maybe one of the transistors (BC340) attached to t...
von helloradio
24.08.2014, 11:25
Forum: Tonbandgeräte
Thema: TG1000 2-track DAMAGE CONTROL
Antworten: 6
Zugriffe: 6555

Re: TG1000 2-track DAMAGE CONTROL

hello Gerhard
thank you for the suggestion
I am aware of necessity of speed button being pushed in.
no reaction to speed button change.
I am just wondering why the capstan motor is slightly warm after few minutes.

Darius

ps. I do a lot of reading about TG1000, just very excited about my new toy.
von helloradio
23.08.2014, 21:14
Forum: Tonbandgeräte
Thema: TG1000 2-track DAMAGE CONTROL
Antworten: 6
Zugriffe: 6555

TG1000 2-track DAMAGE CONTROL

Hi Probably I should be impressed with people who designed Braun TG1000. My second example of this tape deck had in the past mega crash, maybe with the metal or cement floor. The damages to the metal box/shell look small but you can imagine how big was the impact just to bend the corner of quite thi...
von helloradio
23.08.2014, 19:25
Forum: Tonbandgeräte
Thema: TG1000 right channel extremely low and only high frequency
Antworten: 3
Zugriffe: 3394

Re: TG1000 right channel extremely low and only high frequen

So I spent some time with exchanging capacitors looking at service manual etc. No change, tired with lack of success I started to look at my second TG1000 (just arrived) this time in two track version. Connected to audio source-computer and out to amplifier. The same problem no sound in right channe...
von helloradio
21.08.2014, 22:14
Forum: Tonbandgeräte
Thema: TG1000 right channel extremely low and only high frequency
Antworten: 3
Zugriffe: 3394

thank you for the suggestion I was looking at the schematics and the real board and I am not sure which capacitors exactly you are referring to. if you do not mind giving me exact candidates for exchange that would be great. I would like to try solder them to the board without removing it from the m...
von helloradio
21.08.2014, 16:27
Forum: Tonbandgeräte
Thema: TG1000 right channel extremely low and only high frequency
Antworten: 3
Zugriffe: 3394

TG1000 right channel extremely low and only high frequency

Hello again New to the forum and very new owner of TG1000 (only two days). Both channels reproduce/play OK tape recorded on another tape machine. Signal in the right channel in stereo mode almost not existent and only high frequency part from the music coming in. Left channel OK this situation exist...
von helloradio
21.08.2014, 16:06
Forum: Tonbandgeräte
Thema: TG1000 buttons for PLAY FF REV do not stay in pressed position
Antworten: 2
Zugriffe: 2850

This was an excellent diagnosis.
New transistor fixed the problem.
Thank you so much Raimund.

Darius

now the saga with troubles with TG1000 continues but in new topic.
von helloradio
20.08.2014, 15:07
Forum: Tonbandgeräte
Thema: TG1000 buttons for PLAY FF REV do not stay in pressed position
Antworten: 2
Zugriffe: 2850

TG1000 buttons for PLAY FF REV do not stay in pressed position

Hello to everybody. Just trying to bring to full functioning my newly acquired Braun TG1000. Could somebody, please share some thoughts how to solve this problem. Pressing keys PLAY, FF, REV worked for an hour or so and now they do not stay in place Holding down mentioned buttons invokes proper func...