TM 808 White's

[Orbit]

What is the working voltage for TM808 ?

[chevesne]

You have 6,4v - 0,6v (diode). see the schematic (back left).
So 2,9v between GND and +.

[kt315]

4pcs D typo holder. you have 6v or if nicad 1.3x4 5.2v

[Orbit]

Thanks KT and chevesne !
With rv 50 it serves to get a higher voltage at the output on integral circuits ,I'm interested in the output voltage ,I turned the trimmer rv 50 and I get voltage on integral circuits 12 ---- 14v, etc. ,which voltage to set it has at ic ?

[kt315]

you know or do not know this fact that TM-808 is a part of 5900/6000 di pro sl, non-motion all metal mode part. ONLY one part.
if you open the schemaic of last you will sure see - +7.5 and -7.5V to gnd will give you 15V.

[Orbit]

you know or do not know this fact that TM-808 is a part of 5900/6000 di pro sl, non-motion all metal mode part. ONLY one part.
if you open the schemaic of last you will sure see - +7.5 and -7.5V to gnd will give you 15V.

This would mean that the voltage should be set to 15v ?!
What would be a problem? I have the impression that the geb balance can not be set out on the ground it feels the ground always when I pump down to earth ?
I can not find a balance point !

[kt315]

all files on Whites http://depositfiles.com/files/rrw2lafrl

[dbanner]

If the circuit has 3140 chip then I suspect this is culprit in retune circuit in ground balance channel. It has been known to fail after decades of years

[kt315]

schematic

[kt315]

pcb layout

[kt315]

wow.... SMD board =) sweet...

[dbanner]

wow.... SMD board =) sweet...

Yes, quite sweet indeed. But surely there is better solution to "hot snot" Picasso is rolling in his grave

[berreizeta]

[berreizeta]

White's 5900 and TM808 works in the same frecuency ? :

https://youtu.be/D1GCaNdGUWU

look please.

[kt315]

6.59 kHz