ADA Power Amps > Microtube 200 MT-200

Microtube 200 Yellow Leds

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HerlonGuitar:
Hi Guys!

There are two yellow LEDs inside the MT200 one near each tube. Do they light up? I've never seen an MT200 with those leds working. In mine they don't light up either.

HerlonGuitar:
guys??

Kim:
Not sure how your post got missed; sorry about that.

I believe those LEDs are there to be used as just an actual diode (because they are indeed diodes after all) and not as a source of light.  It's common to see these yellow LEDs used in this manner in other amps.  Marshall JCM900 to name just one.

HerlonGuitar:
Thanks man! I understand.

But, why does it say: "Real power amp glow in the dark". The photo looks like with the bright yellow leds.

Harley Hexxe:
That was just ADA's ad back in the day.

    You were supposed to be able to see the tubes in the power amp through the vent grill on the front. Maybe the yellow LED's were supposed to help illuminate them since they don't glow very bright in there :dunno:
    As long as the amp is working, it's all good.

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