Nady TCM 1100

[Speed]

Hi,
I am looking for a schema NADY TCM 1100 microphone and schema TMPS-1 Power Supply. I need to know the input voltages.

best regards

 

[LevinGuitar]

I,m pretty sure it,s the same circuit used in MXL V77 microphohe. I draw the schematic years ago:

https://groupdiy.com/threads/studio-projects-t3-circuit.74462/post-943277

The main voltage should be 200v or slightly less.

Let me know if your R3 and R4 have the same values and are connected same way as in the V77

The psu should be quite similar to this one:
https://deeringamps.com/workbench/images/apex460_ps_lg.jpg

 

[Speed]

yes, r3 and r4 have the same values as in diagram but main voltage on pin 1 and 3 is 145V and pin2- 6V

I have a problem with mic after a few seconds when I speak becomes quiet but when stop speak to mic about few seconds working again about few seconds

I don't know if the voltage 145V is correct, I don't know maybe NADY made two versions of TMPS-1 or maybe my TMPS-1 is broken?

 

[LevinGuitar]

145v is ok, 6v too.

Does it happen when you record instruments?
Seems more like capsule moisture issue, are you using an antipop filter? If the capsule have a lot of dirt this issue comes more easily

 

[Speed]

you're right,

I take a dryer and dried it for a few minutes, I did it from a distance
now microphone works properly but I don't know how long

thanks for help