Les

Correction: I just couldn't see. Turned on some lights and took some HQ pics of the knobs.
You can zoom in and see that they say: Taiwan Alpha A10R 9G2
http://i.imgur.com/T7wNM.jpg
http://i.imgur.com/qwfG1.jpg

Hello Les,

I posted about cleaning the knobs on my Firestudio Mobile and you commented on it a while ago.

I was hoping you could give me a tip on where I can purchase sealed rotary knobs to use as replacements, and how I would identify the exact type that I need.

I opened up the unit but they are just blank. I also Google searched "sealed rotary knobs, fire studio rotary knobs replacement" etc and got nothing.

Contacted technical support and never heard back.

Thank You Les.

`M

Hi Les
Are you familiar with the Akai s3000xl sampler ?

Hi Les,I hope you'll not consider me unpolite for direct contact; You're one of the most competent and helpful person out there. I bought a Shure Unidyne 545s pistol grip. First I tested the impedance (I'm not an electronic expert) in both hi and lo-Z config (Amphenol 4 pins plug, I followed the directions on the Shure site). I was surprised to see that the value at hi-Z is only 22 ohm; at lo-Z is ... 22 ohm. I checked a Shure 99S56 SC cartridge and the result is about 1300 ohm. Then I tried to measure the output (tension) while blowing in the mic, and I had the impression that the value before the transformer was higher than the value at the plug.
Then I plugged the mic in the amp and it works, but it seems to be weak. The 99S56 is much more powerful.
Is there something wrong? Transformer not working properly (hi-Z = lo-Z)? May be some problem with polarity (the yellow and green cables to the elements seem re-soldered)? any additional tests?
Thanks in advance. Regards.